Rachel Redfern received her bachelor's degree in biology from Texas A&M University and then her OD/PhD from the University of Houston, College of Optometry. In 2006, Dr. Redfern received the Institutional Ruth Kirschstein National Research Post-doctorate Award and the ARVO/Alcon Early Career Clinician-Scientist Research Award. Dr. Redfern is a member of the Association for Research in Vision and Ophthalmology, the American Academy of Optometry and the Tear Film and Ocular Surface Society. She is also a past William C. Ezell Fellow.
Her laboratory is interested in ocular surface inflammation/infection, the impact of contact lenses (e.g. scleral gas permeable lenses) on normal and diseased eyes and the functional and anatomical changes that occurs in the meibomian glands with age and disease. They perform human subject, animal and in vitro studies. Dr. Redfern’s laboratory is NIH funded to examine the impact of toll-like receptors on the production of damaging cytokines and matrix metalloproteases and beneficial antimicrobial peptides on the ocular surface.
Dr. Richdale joined the University of Houston College of Optometry in 2017. She was previously an Associate Professor and founding director of the Clinical Vision Research Center, and established the Myopia Control Clinic at the State University of New York College of Optometry. Dr. Richdale teaches and conducts research primarily in cornea and contact lenses and her work has been supported by federal, private and industry grants. She currently serves as Co-Chair of the Contact Lens Assessment in Youth (CLAY) study group. Dr. Richdale received her OD, PhD, and Cornea and Contact Lens Advanced Practice Fellowship from The Ohio State University.
Contact lenses, presbyopia, accommodation, anterior segment effects of diabetes and obesity
Cornea and contact lenses, presbyopia, myopia control, multifocals, orthokeratology
Eric Ritchey, OD, PhD, FAAO is a 2001 graduate of The Ohio State University College of Optometry. After graduation, Eric completed a 2-year Advanced Practice Fellowship in Cornea and Contact Lenses at Ohio State, where his research focused on overnight orthokeratology and extended wear contact lenses. Following fellowship, Eric served as a Clinical Assistant Professor at the University of Missouri-Saint Louis College of Optometry before beginning his PhD training at Ohio State. During his PhD training, Eric’s research in the laboratory of Dr. Andy Fischer focused on the mechanisms behind refractive error development. After completing the PhD, Eric joined Johnson and Johnson Vision Care as a Principal Research Optometrist in the Emerging Technologies Group, where he worked on contact lens technologies to control myopia progression. After 4 years in industry, Eric decided to return to academia and will teach Ophthalmic Optics to 2nd year optometry students. Eric’s clinical interests are in specialty contact lens fitting, anterior segment disease and ocular prosthetics. His research activities will focus on myopia development and contact lenses.
Krystal L. Schulle, OD received her bachelor of science degree in biology in 2009 at the University of Houston in Houston, TX, and then completed her Doctor of Optometry degree in 2013 at the University of Houston College of Optometry in Houston, TX. In 2014, she completed a residency in Ocular Disease and Refractive and Ocular Surgery at the Eye Center of Texas in Bellaire, TX. Dr. Schulle is a member of the American Optometric Association, American Academy of Optometry, Texas Optometric Association, and Harris County Optometric Society. She also has received numerous awards and scholarships, most notably, the Julius F. Neumueller Award in Optics in 2013 from the American Optometric Foundation.
Dr. Schulle’s major research interests include myopia, contact lenses, and myopia progression. She is a co-investigator in the Bifocal Lenses in Nearsighted Kids (BLINK) Study, which is determining whether soft bifocal contact lenses slow the progression of nearsightedness in children.
Dr. Pat Segu graduated from the University of Florida with a Bachelor of Science in Microbiology and Cell Science in 1988. She continued her education at the University of Houston College of Optometry receiving her doctorate degree in 1992. Dr. Segu completed her residency in hospital-based optometry at the Veteran’s Administration Medical Center Tacoma, WA. Dr. Segu holds a therapeutic license in the state of Texas with glaucoma privileges. She is a Fellow of the American Academy of Optometry, a member of the American Optometric Association, the Texas Optometric Association, and Harris County Optometric Society. Dr. Segu is actively involved and serves on the Advisory board for Eye Care for Kids Foundation, consultant for Accreditation Council of Optometric Education, member of the AAO Vision and Aging Sig steering committee, member of Sugar Land Lions Club, and member of Prevent Blindness of Texas Houston Branch. Dr. Segu is currently a clinical associate professor, director of the family practice community based residency program, clinical director for the Houston vision collaboration project-See to Succeed, and director of optometry services at the Good Neighbor Healthcare Center for the University of Houston College of Optometry. She has received state and local recognition for her teaching abilities. Dr. Segu is the recipient of the 2013 Texas Optometric Association Educator of the Year Award, Class of 2007 Outstanding Faculty Award, and 2005 AOSA Most Supportive Faculty Award. Under her leadership, Good Neighbor Eye Clinic received the 2003-2004 Prevent Blindness Partners in Prevention Award for the state of Texas. Dr. Segu's interests include primary care optometry and ocular disease.
Dr. Shulman received his Bachelor of Science degree, his Doctor of Optometry Degree, and his Ph.D. degree from the University of Houston. After graduation from optometry school in 1981, Dr. Shulman practiced optometry in Houston in a private practice setting for ten years. He then returned to the University of Houston to obtain his Ph.D. degree in Physiological Optics and Vision Science. His primary area of research was retinal cell biology and his thesis concerned the effects of dopamine and lead on sodium - potassium ATPase in rat photoreceptors. After graduation in 1998, he spent several years in San Diego, California. Dr. Shulman then returned to the University of Houston, College of Optometry to teach the Ocular Anatomy laboratories and a portion of the Advanced Physiology course. In February 2005, he became the Assistant Dean for Student Affairs and Admissions. Dr. Shulman's favorite past-times are ice hockey (for which he is too old to play competitively now), baseball, and photography.
Retinal and neurophysiology, ocular morphology and cell biology, cell signaling and signal transduction including retinal dopamine involved in second messenger pathways.
Professor Smith received his OD (1972) and PhD (1978) from the University of Houston and subsequently joined the faculty of the UH College of Optometry. During his tenure in the College of Optometry, he has served as the Chair of the Basic Sciences Department and as the Associate Dean for Graduate Studies and Research. Professor Smith currently holds the Greeman-Petty Professorship in Vision Development and is serving as the Dean of the College of Optometry.
Professor Smith’s research interests are focused on the optics of the eye. He received the Glenn Fry Award (1996) and the Prentice Medal (2010) from the American Academy of Optometry for his research on the role of vision in regulating refractive development and eye growth. Professor Smith has published over 150 referenced papers and received 29 years of research funding from the National Institute of Health's (NIH) National Eye Institute (NEI). He is also an accomplished lecturer, having received teaching awards at the department, college and university level and in 2003 was selected by the Texas Optometric Association as its Educator of the Year.
Professor Smith is an active member of the vision science community. He is a Fellow of the American Academy of Optometry, an ARVO Fellow (inaugural class), a past President of the American Optometric Foundation (2002), a past Member and Chair of NIH NEI's Central Visual Processing Study Section (1998-2003) and a past member of NIH's National Advisory Eye Council (2005-2008). Professor Smith currently serves on the Board of Directors of Prevent Blindness Texas, as the Secretary of the Partnership Foundation for Optometric Education, and as the Past-President of the Association of Schools and Colleges of Optometry.
Myopia, Visual Optics, Amblyopia, binocular vision, psychophysical and neurophysiological effects of abnormal visual experience.
Scott Stevenson received his PhD in Experimental Psychology from Brown University in 1987 for studies of visual suppression during eye blinks. He was an NRSA post-doc at UC Berkeley School of Optometry for three years, and then joined the research faculty there. Dr. Stevenson joined the faculty at UH in 1995.
Dr. Stevenson’s research concentrates on the visual control of eye movements, with emphasis on visually driven eye movement reflexes, such as for the control of eye alignment. Dr Stevenson is also active in the development of eye trackers based on high magnification retinal imaging in a broad collaboration involving researchers at a number of other institutions.
Dr. Stevenson teaches in courses on Vision Science, Perception, Optometry, Eye Movements, and Matlab for Vision Science.
Dr. Stevenson serves on the Editorial Board for Vision Research, and is a member of the Vision Sciences Society.
Vergence eye movements and binocular coordination, stereoscopic depth perception, modeling of binocular image matching processes.
Dr. Anita Ticak received her combined O.D./M.S. degrees from Ohio State College of Optometry (OSU) in 2008 and completed a Residency in Cornea and Contact Lens at the University of Houston College of Optometry the following year. Currently, she is a Clinical Assistant Professor devoting her time between didactic clinical teaching in the Cornea Contact Lens Service and research in the BLINK STUDY focusing on myopia control for children and VOI Lab creating custom wavefront-guided scleral for the keratoconic population. Dr. Ticak is devoted to serving the community outside UHCO and works in a private practice on the weekends. She is the Co-Founder of the Dry Eye Center at the University Eye Institute and an active attending. She is certified in Texas as an Optometric therapeutic and Glaucoma Specialist and is a fellow of the American Academy of Optometry. Dr. Ticak is an appointed member of the faculty liaison committee to the American Optometric Association. Her primary interests include specialty contact lens fitting and the treatment of anterior segment disease with an emphasis on Ocular Surface and Dry Eye Disease.
Dr. Twa was appointed Dean of the College of Optometry on June 1, 2019. He previously served as a faculty member at the college from 2007 to 2014. From 2014 to 2019, Dr. Twa served as the Associate Dean for Research and Graduate Studies at the University of Alabama at Birmingham School of Optometry. His undergraduate training in biology was completed at UC San Diego and his clinical doctoral training in optometry was completed at UC Berkeley. He practiced for more than 10 years in the department of ophthalmology at UC San Diego before pursuing a Ph.D. in machine learning, data sciences, and biomedical image analysis at the Ohio State University. Dr. Twa currently serves as a grant reviewer for the NIH/NEI, he is a member of the AOA Council on Research, the AAO Research Committee, and is the current Editor in Chief of Optometry and Vision Science.
I have a longstanding interest in biomedical imaging, image analysis and using machine learning methods to improve clinical decision making. My current research is related to the development of new imaging technology for sensing tissue biomechanics (optical coherence elastography) and I am also working to address adherence behavior in glaucoma.
Deep learning, clinical informatics, ocular imaging, glaucoma, and corneal biomechanics
Dr. Maria K. Walker, OD MS attended The New England College of Optometry in Boston, MA, where she earned her Doctor of Optometry and Master of Vision Science degrees concurrently in 2013. She went on to complete a Residency in Cornea & Contact Lenses at Pacific University in Forest Grove, OR. Dr. Walker was the recipient of several awards throughout her education, including the Vision Care Scholarship for Clinical Excellence, the AOF Award for Excellence in Contact Lenses, and the Sheldon Wechsler Contact Lens Residency Award.
In the fall of 2014, Dr. Walker joined the faculty at UHCO as a Visiting Assistant Professor, working as an attending clinician as well as on various research initiatives within the Contact Lens Department. She also lectures in the third year Contact Lens Course, and is an instructor for the course’s laboratory component.
Dr. Walker’s major research interests include anterior segment physiology, scleral contact lens complications, and contact lens optics - specifically for presbyopia and myopia control modalities. She is currently an investigator in the Bifocal Lenses in Nearsighted Kids (BLINK) study, examining the effects of soft bifocal contact lenses in controlling childhood progression of myopia.
Dr. Wallace-Tucker received her Bachelor of Science degree in Microbiology and Cell Science from the University of Florida in 2006 and her Doctor of Optometry degree from the University of Houston College of Optometry (UHCO) in 2010. She subsequently completed a residency in cornea and contact lens at UHCO. Dr. Wallace Tucker is a Visiting Assistant Professor at UHCO, where her clinical practices include the Cornea and Contact Lens Service and Family Practice Service. As a Therapeutic Doctor of Optometry, she is licensed to diagnose and treat ocular disease and is certified by the Texas Optometry Board to practice as a Glaucoma Specialist. Dr. Wallace-Tucker is also a Fellow of the American Academy of Optometry.
Dr. Wallace-Tucker’s clinical and research interests include specialty contact lens fitting and the treatment and diagnosis of anterior segment disease.
I was born and raised in Ann Arbor Michigan. After graduation from high school I attended the University of Michigan majoring mechanical engineering. Three years of that convinced me that I needed to rethink my educational goals. After 3 years in the Army I returned to Michigan and enrolled at Michigan State University in Psychology where, in a period of 5 years, I obtained a B.S., M.A. and Ph.D. in experimental Psychology. After graduation I joined the faculty of the Massachusetts College of Optometry where I taught Vision Science and began my career in clinical electrophysiology. While on the faculty I entered the accelerated clinical program for students with a Ph.D. degree and was granted the OD Degree after 2 years of study. One year later I came to the University of Houston and joined the Optometry College faculty. Over the years my interests have shifted from vision science to retinal pathology. I am presently the director of the Ocular Diagnostic Service and teach retinal pathology in the third year of the professional program.
My Clinical interests center largely on the retina and the optic nerve. The University Eye Institute, Ocular Diagnostic Service is one of the finest equipped facilities of its type in the world. I routinely use the full range of the classical electrical physiological tests (VEP, ERG & EOG) along with visual field testing, ultrasound, and the major scanning laser devices to diagnosis retinal and or optic nerve disease.
Janice Wensveen received her Doctor of Optometry from the University of Waterloo School of Optometry, Canada, and her Ph.D. in Physiological Optics from the University of Houston College of Optometry. Dr. Wensveen is currently Clinical Assistant Professor at the University of Houston where she teaches binocular vision in class, lab, and in the clinic. Her research interests center on compromised binocular function resulting from early image degradation and strabismus.
My long-term research goals are to understand the mechanisms and principles that govern visual development, to explain how early abnormal visual experience (e.g., due to form deprivation or strabismus) can result in amblyopia and/or anomalous binocular vision and thereby, to design better interventions to preserve normal monocular and binocular vision (e.g., for infants with unilateral cataract or strabismus). My current project focuses on how the effects of normal and abnormal visual experience are integrated over time during the critical period. Recently, we have found that daily short periods of normal vision can rescue infant monkeys from the severe amblyogenic effects of much longer periods of form deprivation, and can preserve stereopsis in monkeys reared with much longer periods of optical strabismus. In addition I am developing a model of the susceptibility of stereopsis to infantile esotropia to determine whether the duration of strabismus or age at alignment influences stereopsis to a greater degree. Taken together, this work will provide a clearer understanding of the relative influences of normal vs. abnormal binocular visual experience on visual development and help to guide clinicians in managing cases where there is some impediment to normal binocular vision.
Dr. Wensveen's clinical interests include anomalies of vergence and accommodation that compromise efficient binocular vision. She works with patients to help them overcome binocular vision anomalies in the FAMILY PRACTICE VISION THERAPY SERVICE. Her secondary interest is in contact lenses.
Joe Wheat received his bachelor’s degree in biology from The University of Texas at Austin followed by his Doctor of Optometry from The University of Houston College of Optometry. He completed an optometric residency at the Baltimore VAMC, and returned to the University of Houston College of Optometry to complete a PhD. Prior to his return to UHCO in 2017, he worked at the Michael E. DeBakey VAMC, where he was in charge of the optometric residency program. Past honors include the William C. Ezell fellowship award, the Institutional Ruth Kirschstein National Research Post-Doctorate Award, and the NIH Mentored Clinician K award. He is currently a member of the Optometric Glaucoma Society.
Structure-function relationships in glaucoma, imaging techniques of the optic nerve, retina, and choroid