On Optotypes

This is a great post about the evolution of the eye chart. The blog post includes great information about the science of psychophysics and how it pertains to eye exams.

Morgan Hill Eyecare Optometry uses the latest eye chart which incorporates the newest understanding of how optotypes affect the psychophysical performance of patients. By using the WRONG eye chart, an optometrist can actually induce poor results and influence what lens choices patients may make. It is now agreed that the original Snellen chart is absolutely horrible.

Morgan Hill Eyecare Optometry uses a LogMAR chart exclusively. We also use, when necessary (which is quite often), the duo chrome test for its forced-choice nature and its reliance on the laws of physics and less on the whim of the patient. Click the link below to read on…

https://ilovetypography.com/2015/07/12/what-are-optotypes-eye-charts-fonts/