Theory and evidence for a clinical hyperacuity test.
An accurate assessment of the integrity of the visual system behind opaque ocular media is of vital clinical significance, especially with regard to surgical intervention. Several techniques which are currently available to assist in this task are considered with regard to their value. Theoretical considerations indicate that hyperacuities, by virtue of their resistance to optical image degradation, should constitute ideal candidates to perform the above evaluation. Hyperacuity studies involving cataract simulation support this view, as does the clinical data which is presently available. Further work should reveal an optimum hyperacuity configuration or a battery of hyperacuity tests and establish their clinical merit.
Whitaker
D
D
School of Optometry, University of Bradford, U.K.
Buckingham
T
T
D006801:Humans; D008027:Light; D012684:Sensory Thresholds / Q000502:physiology; D014786:Vision Disorders / Q000175:diagnosis* / Q000503:physiopathology; D014787:Vision Tests / Q000379:methods; D014792:Visual Acuity