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How Snellen is Making People “Blinder”

Year: 2025
Type: article
Abstract: After 15 years of mental, physical, and financial exhaustion, I FINALLY figured out how and why I was blinded by an Optometrist for four years starting in 2002, as well as why Dyop testing is superior to Snellen testing.Most of the details are in the recent paper on "Induced Dyslexia [1]."However, I was taught "Everything in life is simultaneously both a Blessing and a Curse."I have taken the Curse of my vision problems, and the 2010 discovery of the Dyop concept, and turned it into a Blessing. The Four Vision Science Discoveries with the Dyop Test• The Snellen test, as a benchmark for acuity and refractions, is inherently imprecise, inconsistent, and inefficient due to its reliance on identifying (or guessing) three of the five letters per line in the final steps of the test.Nearing 20/20 acuity (or 6/6 in the metric world), the rows become five letters of decreasing size.Except we don't "see" the letters or "see" the Black areas.Instead, we perceive the irregular White areas around culturally dependent Black shapes (e.g., letters) which do NOT stimulate your photoreceptors.With Snellen testing we see only White, which is a combination of the computer pixel Red, Green, and Blue light stimuli.• I discovered that the optimal Dyop rotation speed was 40 rpm, with an optimum 10% ring stroke width.This specific Dyop gaps size and motion is crucial to acuity precision.The Snellen gap AREA (such as the spacing in the "E" or the gap in the "C") is nearly twice the size of the Dyop's stimulus gap AREA.The optimum Dyop rotation rate matches the optimum photoreceptor refresh rate, thus making strobic Dyop optotypes significantly more precise than static optotypes [2].• The optimal Dyop rotation speed of 40 rpm matches the refresh rate of the retina fovea's photoreceptors which in turn relay their signals to neuroganglia cells in front of the retina.The neuroganglia sends its composite signal to the cilia to control the shape of the lens as well as a composite signal to the brain (via the optic nerve) where the image is stored and interpreted.Contrary to conventional belief, acuity is NOT regulated by the brain but by the foveal photoreceptors through a process called Chromatic Triangulation which allows the shape of the lens to adjust the focal depth colors of Red, Green, and Blue and the response of the color receptive photoreceptors in the fovea [3].
Language: English
Subfield: Epidemiology
Field: Medicine
Open Access status: bronze
OpenAlex ID: W4413432863
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