Dr. Kassaundra Johnston received her Doctor of Optometry degree from the University of Houston College of Optometry (UHCO). After graduation, she stayed at UHCO to complete a residency in Neuro-optometric Rehabilitation. Dr. Johnston is currently a Clinical Assistant Professor at UHCO where she attends in Pediatrics clinic (primary and specialty), Brain Injury Vision Assessment & Rehabilitation Service, and Non-invasive Objective Visual Assessment (NOVA) Service. In her first year as faculty, Dr. Johnston successfully expanded the UHCO Pediatrics service to include a new clinic, for which she is the Director, called SNAPS (Special Needs Adult and Pediatric Service) that specializes in examining teen and adult special needs populations. She is also credentialed at The Institute for Rehabilitation and Research (TIRR Memorial Hermann Hospital) and Houston Methodist Hospital, inpatient neuro-rehabilitation hospitals, where she works with current residents to see inpatients for functional visual assessments. She is currently the Director of the Brain Injury Vision Rehabilitation Residency at UHCO. Dr. Johnston is a Fellow of the American Academy of Optometry and is a member of the American Optometric Association. She lectures for continuing education programs as well as teaches in both classroom and clinical settings.
Binocular vision and accommodative deficits secondary to traumatic brain injury
Vision assessment and rehabilitation of brain injury patients (neuro-optometric rehabilitation), pediatric optometry, and vision assessment of special needs population.
Dr. Casey Johnston graduated with a Bachelor of Science degree in Exercise Physiology from Florida State University. He then completed a Doctorate of Optometry degree at the University of Houston College of Optometry (UHCO). After graduation, he entered private practice in the Houston area while also serving as an Adjunct faculty at UHCO.
Dr. Johnston joined the faculty as a Clinical Assistant Professor in 2015. He has a wide array of interests but his primary areas of clinical practice include patient care in the Family Practice Service and surgical co-management in the Ambulatory Surgical Center.
Dr. Matt Kauffman received his Bachelor’s of Science degree in Biology from Southwestern University in Georgetown, Texas. He attended the University of Houston College of Optometry (UHCO), where he earned his Doctor of Optometry. Afterwards, Dr. Kauffman completed a Residency in Cornea and Contact Lenses at the University of Missouri St. Louis College of Optometry.
Upon completion of his residency, Dr. Kauffman returned to Houston, Texas and worked in a private practice fitting specialty contact lenses. He was also adjunct clinical faculty at the University of Houston College of Optometry.
Dr. Kauffman later joined UHCO as a full-time visiting assistant professor. He enjoys teaching in the Cornea and Contact Lens Service and performing research in the Visual Optics Institute. He also lectures and publishes on the topics of specialty contact lenses and corneal disease.
He is a fellow in the American Academy of Optometry and the Scleral Lens Society, and a member of the American Optometric Association and Texas Optometric Association.
Dr. Kauffman’s research includes analyzing ocular aberrations for irregular cornea patients (e.g. keratoconus, corneal grafts, post-refractive surgery) and designing and manufacturing custom wavefront guided scleral lenses to help improve the patient’s visual outcome. He is currently a clinical investigator for a NEI funded wavefront guided scleral lens study.
Dr. Kauffman’s clinical expertise is the fitting of irregular corneas with specialty contact lenses. He is well experienced on the fitting of scleral lenses, small-diameter (rigid) gas permeable lenses, hybrids, and custom soft lenses for diseases such as keratoconus, pellucid marginal degeneration, corneal transplants, as well as normal conditions.
Dr. Lucy Kehinde attended the University of Illinois at Urbana-Champaign where she earned her B.S. in Integrative Biology with a minor in Chemistry in 2005. She then went on to earn her Ph.D. in Vision Sciences in 2009 and O.D. Degree in 2013 from the University of Alabama at Birmingham School of Optometry in Birmingham, AL. Following the professional program, she completed a Primary Care residency with an emphasis in cornea and contact lens in 2014 at Indiana University School of Optometry in Bloomington, IN.
Dr. Kehinde is now a Therapeutic Optometrist and Optometric Glaucoma Specialist in Houston, TX. After working in private and commercial practice settings, she joined the faculty at University of Houston College of Optometry as Assistant Clinical Professor in 2015, where she serves as a laboratory instructor and attending in Family Practice Service, Dry Eye Center, and Cornea and Contact Lens Service.
Research interests include ocular surface disease, tear film physiology and contact lens clinical trials.
Clinical interests include anterior and posterior segment ocular disease and specialty contact lens fitting.
Dr. Andrew Kemp attended the University of Texas at Austin where he received his bachelor of science degree in biology in 2010. He then attended the University of Houston College of Optometry and graduated with honors in 2014 with his doctor of optometry degree.
Dr. Kemp has completed internships in ocular disease care in a community clinic setting, traumatic brain injury, pediatrics and specialty contact lenses. He also was involved in research on keratoconus in the Texas Eye Research and Technology Center during his time there. After graduation, he was selected for residency training at the Cedar Springs Eye Clinic in Dallas, TX where he received extended training and education in the management of ocular diseases including diabetic retinopathy, uveitis, and glaucoma along with training with specialty contact lenses aimed for the management and vision rehabilitation of diseased/traumatic corneas.
Upon completing his residency, Dr. Kemp joined Lakeline Vision Source in 2015. There he participated in direct patient care, education of office staff and training of optometric student interns from the University of Houston. Dr. Kemp joined Community Eye Clinic and the Cedar Springs Eye Clinic in January of 2017 and has passion for teaching, clinical research and patient care.
Dr. Kemp is a licensed Therapeutic Optometrist and Optometric Glaucoma Specialist and he is a member of the American Optometric Association (AOA), Texas Optometric Association (TOA), and the American Academy of Optometry (AAO).He also enjoys playing soccer, running, attending various fitness classes, discovering new restaurants and traveling both within and outside of the US.
OCT-Angiography in regards to diabetic retinopathy and glaucoma
I graduated in 1990 from the Indiana University School of Optometry. After graduation, I was active duty in the United States Air Force where I was the officer in charge of a hospital-based optometric practice. After five years of service, I returned to Indiana University, this time to the School of Medicine, to begin post-doctoral work in the field of diabetes and diabetic retinopathy. While working on my doctorate, I was a part-time lecturer and clinical faculty with the Indiana University School of Optometry. After earning my doctorate in pharmacology, Dec 2002, I joined the University of Houston College of Optometry as an assistant clinical faculty in Jun 2004. I came to Houston with my husband and now, 22-month-old son, our pride and joy. Currently, I am learning to be a Houstonian, and lecturing in both basic and didactic optometry courses as well as facilitating laboratory and clinical instruction.
Diabetes and Diabetic Retinopathy: The role of oxidative stress and pharmacological interventions.
Primary care, geriatrics, therapeutic management of primary ocular disease, ocular trauma, and ocular manifestations of systemic diseases.
Dr. Julianne R. Knowles received her bachelor’s degree in Visual Science from Ferris State University in Big Rapids, Michigan in 1999. She received her Doctor of Optometry degree from the Michigan College of Optometry in 2001 and completed her externships in Houston, Texas. Upon graduation, she served as a Commissioned Officer in the United States Navy at the Naval Medical Center in San Diego, California where she provided optometric care to US Carrier Battle groups, Navy and Marine Corp pilots, and Navy SEAL teams. Dr. Knowles moved back to Houston with her family to pursue working in a private practice that dedicated eye care to military veterans and NASA astronauts. Having grown up in a family of educators, Dr. Knowles made a natural transition to academia at the University of Houston in 2006.
As a Therapeutic Doctor of Optometry, Dr. Knowles is licensed to diagnose and treat ocular disease. She is certified by the Texas Optometry Board to practice as a Glaucoma Specialist. As a clinical assistant professor, she is involved in direct patient care and the supervision of optometric students and residents
Dr. Knowles is a member of the Texas Optometric Association, the American Optometric Association and the American Academy of Optometry.
Dr. Knowles clinical interests are in practice management and marketing, and primary care optometry, including geriatrics, pediatrics and ocular pathology.
Dr. Zanna Kruoch graduated from the University of Houston, College of Optometry with a Doctorate of Optometry in 2009. She continued on to pursue a residency specializing in cornea and specialty contact lenses at the Illinois College of Optometry with completion in 2010. Currently, Dr. Kruoch is clinical faculty for a Dallas-based indigent community clinic called Cedar Springs Eye Care where she works with 4th year extern students. Dr. Kruoch is also a Fellow of the American Acacdemy of Optometry. Her clinical interests include specialty contact lens and ocular disease.
Dr. Lambreghts is a graduate of Pace University with an RN in Nursing and a BA in Biology. She worked as an orthopedic surgical nurse until entering optometry school. After graduating from SUNY College of Optometry in 1993, Dr. Lambreghts completed a dual residency in rehabilitative and primary care optometry at the Northport Veterans Administration Medical Center in Northport, NY. She served as staff optometrist at the Northport VAMC and an associate in private practice until coming to the UH College of Optometry in 1997. Currently she is a Clinical Associate Professor, Director of the Family Practice Service and serves as Family Practice Residency Director at the University Eye Institute. She is also a fellow of the American Academy of Optometry.
Research interests includes on-line student clinic evaluation, cultural sensitivity/ awarness in health care and scanning laser technology in the diagnosis of optic nerve and retinal pathology.
Clinical interests include all aspects of primary care optometry incuding geriatrics, pediatrics and ocular pathology.
Dr. Karen L. Lee received her bachelor’s degree in Physiological Science from University of California, Los Angeles. She received her Doctor of Optometry degree from Indiana University School of Optometry and completed a cornea and contact lens residency at Southern California College of Optometry. Prior to joining the University of Houston, Dr. Lee served as Director of the specialty contact lens clinic at the University of California, San Francisco Ophthalmology department.
As a Therapeutic Doctor of Optometry, Dr. Lee is licensed to diagnose and treat ocular disease. She is certified by the Texas Optometry Board to practice as a Glaucoma Specialist. As a clinical assistant professor, she is involved in direct patient care and the supervision of optometric students and residents.
Dr. Lee is a member of the Texas Optometric Association, the American Optometric Association and the Ocular Surface Society. She is a Fellow of the American Academy of Optometry, Secretary of the Scleral Lens Education Society, and a GPLI advisory board member.
Dr. Logan received her Bachelor of Science in Health degree magna cum laude from the University of North Florida in Jacksonville, Florida. She then graduated from Nova Southeastern University College of Optometry in Ft. Lauderdale, Florida where she completed her Doctor of Optometry degree with Honors and Professional Distinction. She subsequently completed a residency in Cornea and Contact Lenses at the University of Houston College of Optometry (UHCO). Currently, she is a Clinical Assistant Professor at UHCO and is a clinical attending in the Cornea and Contact Lens Service as well as the Family Practice Service. She also instructs students in the laboratory setting.
Specialty contact lens fitting including gas permeable corneal and scleral lenses, myopia control and orthokeratology.
Dr. Manny received her OD and PhD from the University of Houston, College of Optometry. She has been teaching in the clinic and classroom since 1981. Prior to earning her PhD she worked part-time in a private practice. Her clinical expertise is pediatric eye care with an emphasis on children under the age of 6 years and those with special needs. As a clinician scientist she has served as the principal investigator for a variety of multi-center clinical studies funded by the National Eye Institute as well as industry. These studies included clinical trials looking at the development, progression and treatment strategies for nearsightedness (myopia) (COMET, COMET2, ACHIEVE, CLIP), large collaborative observational studies of myopia (CLEERE, COSMICC), and collaborations with the Pediatric Eye Disease Investigator network (PEDIG) studying different treatment options for amblyopia and strabismus. Other research interests include improving screening methods used to identify infants and preschool children with vision problems or at risk for vision problems. She is a fellow of the American Academy of Optometry, and serving as a Vice chair of PEDIG (2014-2016).
Development of Vision, Anomalies of Binocular Vision, Refractive Error, and Vision Screening
Infants and Preschool Children, Children with Special Needs
After receiving her doctor of optometry degree from the University of Houston College of Optometry, Dr. Marrelli completed a residency in hospital-based optometry at the Ft. Howard/Baltimore VA Medical Center in Baltimore, MD. She is currently a clinical professor at UHCO, where she is the service director of the Ocular Diagnostic Service. In the classroom, Dr. Marrelli teaches in the ocular pharmacology, glaucoma and case-based learning courses. She is the director of the ocular disease residency program. Dr. Marrelli is a diplomate in the ocular disease (glaucoma) section of the American Academy of Optometry, and serves on the executive board of the Optometric Glaucoma Society.
Dr. Marrelli's primarily clinical interests are in glaucoma and other ocular disease.
Dr. Marsack completed a BS in Computer Engineering at Texas A&M University, a MS in Biomedical Engineering at The University of Texas at Austin and a PhD in Physiological Optics and Vision Science at The University of Houston, College of Optometry. Currently, he conducts research investigating the optical and visual performance associated with custom corrections for highly aberrated optics of the eye. He was a two-time recipient of the American Optometric Foundation Ezell Fellowship.
Optical aberration of the eye, custom and pseudo-custom correction of optical aberration, visual performance, metrics predictive of visual performance.
Dr. Martinez graduated from Southeastern Louisiana University with a Bachelor of Science degree in Organismal and Integrative Biology with a double minor in Chemistry and Italian. She went on to obtain her Doctor of Optometry degree and Pediatric residency from the University of Houston College of Optometry (UHCO). Dr. Martinez is also a fellow of the American Academy of Optometry. She is currently a Visiting Assistant Professor at UHCO where her primary interest and focus is in pediatric primary care, specialty pediatric care, binocular vision, and brain injury eye exams. She also teaches in areas of pediatric binocular vision. Dr. Martinez was awarded the 2014 Terrance N. Ingraham Pediatric Optometry Residency Award by the American Optometric Foundation.
Pediatrics, Special needs pediatrics, binocular vision, amblyopia, myopia.
She is a Diplomate in Low Vision Rehabilitation, as well as Fellow of the American Academy of Optometry, and a member of the American Academy of Optometry, Low Vision Section. She is the Immediate Past President of the Harris County Optometric Society, a member of the Texas Optometric Association, and the American Optometric Association. Dr. Modi practiced in a private optometry office before returning to teaching at the University of Houston College of Optometry.
She is currently an Assistant Professor at the University of Houston and teaches clinically in the University Eye Institute’s Center for Sight Enhancement. Dr. Modi is the Coursemaster of the Low Vision Rehabilitation didactic course and laboratory for optometry 3rd year students and is the Director of the Low Vision Rehabilitation Residency program. She has presented on low vision rehabilitation both nationally and internationally and the recipient of the Corning Low Vision Award and the Feinbloom Low Vision Award. Dr. Modi is an Advisor of the Executive Committee for the Houston Area Visually Impaired Network (HAVIN).
Research interests include clinical low vision rehabilitation research, specifically studying the impact of low vision devices on visual function.
Research interests include clinical low vision rehabilitation research, specifically studying the impact of low vision devices on visual function.
Clinical interests include all areas of Low Vision Rehabilitation, especially regarding the needs of older adults and bioptic driving in all ages.
Dr. Rebekah Montes graduated from the University of Texas at El Paso with a Bachelor of Science in Biology and proceeded to earn her Doctorate of Optometry degree from the University of Houston College of Optometry in 2015. After graduation, Dr. Montes continued her clinical training by completing a one year residency program in Family Practice at the University of Houston College of Optometry with emphasis in community care. Dr. Montes is currently a Visiting Clinical Assistant Professor at the University of Houston College of Optometry, co-faculty advisor for National Optometric Student Association, and guest lecturer in the third year geriatrics course. Dr. Montes holds a therapeutic license in the state of Texas with glaucoma privileges. She is a member of the Texas Optometric Association, Harris County Optometric Society, American Optometric Association, American Public Health Association and National Optometric Association. She is fellow of the American Academy of Optometry as well as a diplomate of the American Board of Optometry. Dr. Montes is deeply committed to educating the next generation of optometrists, as well as serving the community and providing exemplary patient care. Her clinical interests include working with underprivileged populations, diabetes and glaucoma management, cataract co-management, and anterior and posterior segment pathology.
Dr. Susana Moreno graduated from the University of Houston with a Bachelor of Science in Biology and proceeded to earn her Doctorate of Optometry degree from the University of Houston College of Optometry. After graduation, Dr. Moreno completed a one-year post-doctoral fellowship at the University of Houston College of Optometry with an emphasis in community-based primary eye care and public health. During her fellowship, she was actively involved with the City of Houston vision collaboration project “See to Succeed,” an initiative designed to improve access to eye care for children with unresolved vision problems.
Dr. Moreno is currently a visiting clinical assistant professor, clinical director for the Hope Eye Clinic, co-faculty advisor for the Student Volunteer Optometric Services to Humanity and guest lecturer in the first year Community Optometry course and the undergraduate course in Minor of Spanish in the Health Professions at the University of Houston. Dr. Moreno is actively involved and serves on the Executive board for Eye Care for Kids Foundation, and secretary-elect for the APHA Vision Care Section. She is a member of the American Optometric Association, American Public Health Association, Harris County Optometric Society, National Alliance for Hispanic Health, Optometric Cornea, Cataract, & Refractive Society, Texas Optometric Association, and Texas Volunteer Optometric Services to Humanity. She is a fellow candidate of the American Academy of Optometry and Diplomate of the American Board of Optometry. Dr. Moreno is the recipient of the 2017 UHCO Excellence in Public Health Faculty Award and firmly believes in the importance of community partnerships to prevent blindness in high-risk populations. She has volunteered her time at several medical mission trips to Guatemala, Honduras, and Mexico. Her clinical interests include community service outreach, international medical mission trips, community-based primary care optometry, pediatric and adult ocular disease.
Dr. Sheila D. Morrison received her B.Sc. degree from the University of Calgary, AB. She earned her O.D. and M.S. of Vision Science degrees concurrently from the Pacific University College of Optometry (PUCO) in Forest Grove, OR. Subsequently she also completed a Post-Doctoral Residency in Cornea and Contact Lenses at PUCO.
Currently Dr. Morrison is a Visiting Assistant Professor at the University of Houston College of Optometry (UHCO), where she serves as the Director of the Cornea and Contact Lens Service (CCLS). She is also a clinical instructor in the CCLS and is a designated provider for the UHCO Myopia Control Clinic. Her teaching and lecture interests include specialty contact lens and anterior segment related topics and she has research involvement within the Ocular Surface Institute (TOSI). Dr. Morrison is also a Fellow of the Scleral Lens Education Society.
cornea and contact lenses: orthokeratology, pediatric contact lenses, medically necessary contact lenses; ocular surface disease and dry eye; myopia control
corneo-scleral topography with application to contact lens design; post-scleral lens tear reservoir analysis and solutions; myopia control
Bruce E. Onofrey, OD, RPh is a 1982 graduate of the Illinois College of Optometry and residency at the Albuquerque Veterans Administration Medical Center. He also has degrees in chemistry and Pharmacy. He recently retired from the Lovelace Medical Center Eye Dept after 25 years where he served as the Chief of Optometry and Vice-chairman of eye services. His most current position is as a clinical professor at the University of Houston and the Exec. Director of continuing education programs. His special interests include lectures in general and ocular pharmacology and clinical drug research.
Dr. Onofrey is a frequent contributor to ophthalmic literature. He is the current editor of ""Clinical Optometric Pharmacology and Therapeutics"", and the author of “The Ocular Therapeutics Handbook-A Clinical Manual”, both published by Lippincott. He also serves as a contributing editor to “Primary Care Optometry News"". He is an internationally recognized lecturer on the management of ocular disease and the use of pharmaceutical agents.
Lisa Ostrin received a Bachelor of Arts degree in Fine Arts at the University of Texas at Austin. She then completed the combined OD/PhD program at the University of Houston College of Optometry in 2006. Following graduate work focused in accommodative physiology, she went to John Hopkins University for post-doctoral research in low vision and retinal prosthetics. From there, she worked as a Clinician Researcher at the University of California Berkeley School of Optometry, with a focus on myopia and associations with glaucoma. She has returned to the University of Houston as an Assistant Research Professor to continue her work in myopia and glaucoma. Dr. Ostrin is a fellow of the American Academy of Optometry and a recipient of the American Optometric Foundation Ezell Fellowship.
My research interests include environmental and behavioral influences on circadian rhythm and eye growth. Light exposure has a close link with numerous aspects of human physiology and has been implicated in several different pathological processes including myopia development, circadian rhythm disturbances, mood disorders, cancer, and metabolic disorders. The intrinsically photosensitive retinal ganglion cells (ipRGCs) are an inner retinal photoreceptor type that respond directly to short wavelength blue light, and are responsible for non-image forming functions including circadian rhythm entrainment and pupil size. Ongoing projects in the lab include 1) measuring and correlating light exposure with ipRGC activity, circadian rhythm patterns, melatonin levels and refractive error, 2) determining the effects of blue light emitting devices (computers and hand held electronic devices) on ipRGC function and sleep/wake patterns, and 3) developing devices to continuously and objectively measure behaviors related to eye growth.
Dr. Deborah Otteson joined the faculty of the College of Optometry at the University of Houston in September 2005. Prior to joining the UHCO faculty, Dr. Otteson received her Bachelors of Science degree in Microbiology and Public Health from Michigan State University and spent the following years studying patterning during embryonic development in Drosophila. In 1994, she returned to pursue a PhD at the University Michigan in Cell, Developmental and Neural Biology, working with Dr. Peter Hitchcock studying retinal development and regeneration at the Kellogg Eye Center. She did her post-doctoral training in molecular ophthalmology with Dr. Donald Zack at the Wilmer Eye Institute of Johns Hopkins University School of Medicine, studying transcriptional regulation of photoreceptor-specific gene expression.
The overall goal of my research is to understand the transcriptional regulatory networks that regulate cell-specific patterns of gene expression in retinal development, differentiation and degenerative retinal disease. Current research focuses on identifying transcription factors that regulate ganglion cell-specific gene expression, analyzing the effects of transcriptional regulatory genes on proliferation and differentiation of retinal cells in culture and establishing retinal cell lines for the development of high throughput assays.
Dr. Patel graduated from the Southern College of Optometry, Memphis Tennessee in 2002, after which he completed a residency in Family Practice at Northeastern State University Oklahoma College of Optometry. He completed his graduate work at the University of Houston, earning a PhD in 2012, and has been on the faculty since. His current research is on improving structural measures of the optic nerve head, retinal nerve fiber layer and macula regions using optical coherence tomography, and investigating the relationship between these structural measures and visual function. He also teaches students in the classroom, laboratory and clinical settings.
Optical coherence tomography, structure-function relationships in glaucoma, algorithm development for early detection of optic nerve pathology.
Complete List of Published Work in My Bibliography:
Dr. Ryan Patel received his Bachelor of Science degree, with high distinction, in Biochemistry at the University of Michigan-Dearborn. As a graduate of the Pennsylvania College of Optometry, he earned a Bachelor of Science in Visual Science and a Doctor of Optometry. Additionally, Dr. Patel completed a Primary Care/Low Vision Residency at the VA Medical Center in Lake City, Florida.
Following his residency, Dr. Patel served as the Director of Optometric Services at a multi-specialty ophthalmology practice in North Carolina. There, he managed pre- and post-operative care for cataract, glaucoma, anterior segment lasers and refractive surgery patients. He developed a dry eye clinic specializing in LipiFlow® technology and managed the practice’s optometric referral network and continuing education programs.
In 2016, Dr. Patel was named the Clinical Director of nJoy Vision at the University of Houston College of Optometry (UHCO), as well as, joined the UHCO faculty as a course instructor and attending clinical optometrist. Currently, he is a Clinical Assistant Professor and the Director for the UHCO Ambulatory Surgery Center (ASC). As Clinical Director, Dr. Patel provides and supervises the pre- and post-operative education for third- and fourth-year optometry students, residents and fellows. He manages the clinical operations of the ASC, as well as facilitates optometric co-management network programs.
Dr. Patel has conducted several FDA/Clinical Studies in the evaluation of surgical equipment and software, the use of toric IOLs in cataract patients, and corneal cross-linking products. He has lectured nationally on a variety of topics including surgical procedures, glaucoma, contact lenses and anterior segment disease.
He is a Fellow of the American Academy of Optometry and holds memberships with the Texas Optometric Association and the American Optometric Association.
Research interests include intraocular lenses, aphakic aberrometry, and various applications of corneal collagen cross-linking.
Clinical interests include the surgical management of the anterior and posterior segment, refractive surgery, keratoconus, and specialty contact lens fitting.
Dr. Perrigin received her BS degree from Delta State University and completed her hospital training in medical technology at the University of Texas M.D.Anderson Hospital and Tumor Institute. She earned her OD degree from the University of Houston where she currently serves as Professor of Optometry. Her areas of teaching and research include contact lenses, medical laboratory testing, ocular microbiology, and management of myopia. Additionally she is in private practice and is also an investigator with Texas Eye Research and Technology Center, frequently participating in clinical trials.
Primary care optometry and cornea and contact lenses
Dr. Perrigin received his undergraduate education at Delta State University. He then enrolled at The University of Houston College of Optometry and graduated in 1969. After receiving his degree in optometry, he served two years as a military optometrist at the rank of Captain. Dr. Perrigin returned to the University of Houston College of Optometry in 1972 and joined the faculty. In addition to his teaching and clinical responsibilities, he is very involved in alumni relations.
Research interests include bacterial contamination of ophthalmic solutions, clinical trials of new contact lens materials and solutions, evaluation of new optometric instrumentation, and ophthalmic photography.
Marcus G. Piccolo, O.D. received his optometric training in Philadelphia, where he attended the Pennsylvania College of Optometry. He moved to Houston in 1980 to join the faculty of the University of Houston College of Optometry. While at the University of Houston, Dr. Piccolo held posts as the Director of the Contact Lens Services, Chief of Primary Care Services, Coordinator of Ophthalmology Services and Chair of the Department of Clinical Sciences. Dr. Piccolo is currently an Associate Professor, and the Associate Dean for Professional Advancement at the University of Houston College of Optometry. He is certified as a Therapeutic Optometrist and an Optometric Glaucoma Specialist and his interests include contact lens practice, diagnosis and management of ocular disease and laser and other refractive procedures. In addition, Dr. Piccolo is a Past President of the Texas Optometric Association and currently serves as the Chair of the TOA Legal and Legislative Committee. Dr. Piccolo was honored in 1991 by being named the ""Young Optometrist of the Year"" and in 1999 by being named the “Optometrist of the Year” by the Texas Optometric Association. Dr. Piccolo received the William D. Pittman Leadership Award for outstanding leadership and unflagging support for the Optometric Profession and the prestigious Cora and J. Davis Armistead Faculty Teaching Award in 2002 both from the University of Houston College of Optometry. He is also a member of the American Optometric Association, where he is the past Chair of the AOA New Technologies Committee and a sitting member of the Federal Relations Committee. He is a Fellow in the American Academy of Optometry and is a Past President of the South West Council of Optometrists. Dr. Piccolo currently sits on the American Medical Association Eye Care Work Group, which is responsible for developing quality standards for eye care providers in the US. In addition to his academic pursuits, Dr. Piccolo maintains a private practice in Houston, Texas.
Clinical interests include the care of the Glaucoma Patient, Anterior Segment Disease and Primary Care Optometry including Contact Lens Care and Refractive Surgery.
Visual quality is limited by a host of factors, including imperfections (or aberrations) in the optics of the eye and the health of various cell types in the retina used to detect light and process this information for subsequent delivery to the brain. Using psychophysical, optical and functional imaging techniques, my primary goal is to better understand how the eye's optics and structure of the retina and optic nerve head affect vision in normal and diseased eyes. After completing my BS degree in Optics from the University of Rochester in 1997, I continued my graduate work in Optics at the University of Rochester's Institute of Optics under the advisement of David Williams. My graduate research focused on constructing a clinical wavefront sensor to measure the optical quality of a large population of normal and postoperative laser refractive surgery eyes, and on investigating the sources of aberrations induced in conventional and customized LASIK (laser in-situ keratomileusis) procedures. In collaboration with Ian Cox (Bausch & Lomb) and Scott MacRae (University of Rochester), I examined changes in the eye’s optical quality after cutting a corneal flap and after performing a laser ablation, how aberrations were induced due to static shifts of the pupil (such as changes in pupil center location with dilation), and characterized dynamic eye movements that occur during surgery. I also assisted in the design of the Rochester Adaptive Optics Ophthalmoscope, an instrument capable of both imaging individual photoreceptors and of conducting visual psychophysics in living human eyes.
Upon receiving my PhD in Optics in 2004, I conducted my postdoctoral work with David Williams at the Center for Visual Science (University of Rochester) in the area of high-resolution retinal imaging using adaptive optics. Adaptive optics is a relatively new technology that can measure and correct for the eye’s aberrations, leading to substantial improvements in image quality when a subject looks through an adaptive optics system. Conversely, the same instrument can provide an extremely sharp view of a subject’s retina with the capability of imaging individual cells in a living eye. As a postdoc, I contributed to the construction of a fluorescence adaptive optics scanning laser ophthalmoscope (AOSLO) that can noninvasively acquire in vivo reflectance and fluorescence images of individual photoreceptors, ganglion cells and retinal pigment epithelium cells. In September 2006, I joined the faculty at the University of Houston’s College of Optometry.
Our lab’s main goals are to learn more about the mechanisms responsible for the development and progression of retinal diseases (such as glaucoma and photoreceptor-based degenerations) and how the retina develops in the normal eye. To this end, we have built a dual deformable mirror, fluorescence AOSLO to image single cells in living eyes, thereby allowing us to conduct experiments that could only otherwise have been done in excised tissue. These experiments are often complimented with the use of other clinical and research-based imaging techniques (such as spectral domain optical coherence tomography) and visual function examinations (including perimetry, electroretinography, etc.) to investigate structure-function relationships. Several projects in the lab revolve around imaging retinal and optic nerve head structures in normal and glaucomatous eyes, as well as in eyes with color vision deficiencies and retinal disease. For example, through our currently funded NIH R01 grant , we seek to better understand the relation between in vivo changes in lamina cribrosa and optic nerve head geometry, axonal damage and vision loss in glaucoma. We also conduct engineering research, often to help facilitate our scientific goals, in areas such as optimal methods for controlling deformable mirrors and non-traditional methods of wavefront sensing and adaptive optics correction. Our AOSLO provides the opportunity to non-invasively monitor normal and diseased retinal structure and function on a cellular level in the same eyes over time. The ability to see cellular structures in vivo could enhance our ability to better diagnose retinal diseases and track the efficacy of potential treatments.
Dr. Sam Quintero received his optometric training at the University of Houston College of Optometry. After receiving his doctorate in 1972, he joined the faculty of the University of Houston College of Optometry. Dr. Quintero served as the Chair of the Department of Clinical Sciences at the University of Houston College of Optometry from 2004 to 2008. He is certified as a Therapeutic Optometrist and his interests and areas of teaching include contact lens practice, diagnosis and management of ocular disease and laser and other refractive procedures, refractive anomalies, practice management, critical thinking and clinical techniques. Dr. Quintero is Head of Research for the Texas Eye Research and Technology Center (TERTC) at the University of Houston College of Optometry. Dr. Quintero is a Fellow of the American Academy of Optometry and has served as Chair of the Section on Optometric Education for the American Academy of Optometry. He is Chair of the Practice Management Educators SIG for the Association of Schools and Colleges of Optometry. He is a member of the Texas Optometric Association and also a member of the American Optometric Association. He serves on several task forces for the Association of Schools and Colleges of Optometry (ASCO). He has been recognized for his contributions to education by the Texas Optometric Association having received the Educator of the Year Award in 2005. He was also recognized for his contributions to the American Academy of Optometry, receiving the Eminent Service Award in 1998. In addition to his academic interests, Dr. Quintero maintains an active private practice in Houston, Texas.
Primary Care Optometry, clinical techniques, critical thinking and practice management.