OPTO 5320 VISION SCIENCE I
Dr. Scott Stevenson (course master)
Office: Room 2152 Voice: 713-743-1960 Email: SBStevenson@uh.edu
Office hours: BY APPOINTMENT
Dr. Dan Coates Email: DRCoates@uh.edu
Tuesday, Thursday, Friday 9 – 10 am Room HBSB 203E
1. Students will develop a mastery of the fundamentals of vision and their application to clinical practice.
2. Students will become familiar with the basic structures of the eye and will gain a deep understanding of how light interacts with retinal cells to produce vision.
3. Students will develop a facility in performing basic calculations involved in specifying the stimulus for vision and visual performance.
1. Schwartz SH. Visual Perception – A Clinical Orientation, 3rd ed, Appleton & Lange, Norwalk, CT, 2004.
2. Norton TT, Corliss DA & Bailey JE. The Psychophysical Measurement of Visual Function, Butterworth-Heinemann, Woburn, MA, 2002.
There will be three examinations, each covering roughly one third of the semester, each counting roughly
1/3 of the semester grade. Examinations will cover materials from handouts and lectures.
Dr. Stevenson’s lectures will be covered by the first two exams. Dr. Harwerth’s lectures will be included in
the third exam, which will be given during finals week. The third exam is NOT cumulative.
Clickers may be used in class to poll students as a group, but clicker responses will not be used for grading.
Americans with Disabilities Act
The American with Disabilities Act (ADA) of 1990 requires that the university make reasonable accommodation to persons with disabilities as defined in the act. Students who need accommodations under the ADA should contact the instructor within the first two weeks of the semester.
Audio and video recording of lectures at UHCO requires permission of the lecturer. It is a violation of common sense, common decency, and College policy to make a recording of another person without asking permission.
For Vision Science I, all enrolled students are hereby given permission to make audio recordings for the purpose of studying lecture material. There is no need to ask each time. Recordings made by one student can be shared with other UHCO students only, but no other use or distribution of the recordings is permitted. Video recording is not permitted.
OPTO 5320 VISION SCIENCE I
Fall, 2017 (Tu, Th, Fr)
GENERAL INTRODUCTION TO VISION SCIENCE
The Eye- basic anatomy
Light - the stimulus for vision
Light as waves: reflection, refraction, diffraction, Mie and Rayleigh scattering
Light as particles: energy of photons, the essential randomness of photon capture, photoisomerization
Radiometry and Photometry
Spectra of various light sources, spectral absorption in the eye, spectral absorption of pigments
Light damage, Maximum Permissible Exposure, light levels in clinical exams
Photoreceptors: Rods and Cones
Pigments and regeneration, wave guide properties, distribution across retina,
Light Detection and Adaptation
Photoreceptors and the dark current,
Light adapation: adjusting to bright light
Dark adaptation: recovering from bright light
Sensitivity across the Visual Field
Spatial and temporal integration of vision
Standard Automated Perimetry
Advances in visual field assessment
Defining and measuring acuity
Factors that determine acuity
Eye chart designs
Texas vision requirements for driving, legal blindness definition
Defining and measuring contrast sensitivity
The Spatial Contrast Sensitivity Function
Temporal Contrast Sensitivity and Flicker
Flicker sensitivity and the CFF
COLOR VISION (Dr. Coates)
Exams each cover about one third of the course, with the last exam covering primarily Color Vision.
Exam I (September 21-27)
Exam II (October 26 – November 1)
Exam III (Final Exam, 2nd week of December)
PDF files for download:
Handouts for Exam I:
Here is a link to the article from New England Journal of Medicine describing retinal damage from a “laser pointer” with 150 mW power.
The three movies here illustrate how minimally distinct border or heterochromatic flicker is used to make a luminance match between two different lights.
Handouts for Exam II
Handouts for Exam III
Color Handouts from Dr. Harwerth (also on BlackBoard)
Motion demo movies shown in class: Some you need to download and play with looping for best results.
Static grating, flicker, counterphase cphasedemo.mov
Temporal CSF tcsfdemo.mov
Spatiotemporal CSF stcsfdemo.mov
These motion demos are not on the exam for fall 2014, but you might find them interesting to watch. These are the same demos shown in lecture:
Grating drifting behind holes GratingThroughHoles.avi
Apparent motion demo (doesn’t work on all computers )
Apparent motion demo (should work!) PhiDemo.gif
Letters defined by moving texture: download and loop RandotUHCO.gif
Spiral aftereffect. Stare at center for 30 seconds driftspiral4Hz16cpihalfhelix.gif
Drifting gratings with various spatial and temporal frequency. Need looping
Compare direct and peripheral viewing. diamovieW.mov
Do the gray bars help you see the diamond? diamovieG.mov