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Saulo Garcia

I grew up inside an optical shop. My mother likes to tell how, as a kid, I would watch eyeglasses being assembled, play with the tools, and draw on the back of service order slips. The family business taught me early what a precise measurement and work done right are worth. I went on to spend more than twenty years as a software engineer, always keeping an eye on the optical world. Optogrid was born where the two meet: digital measurement technology (pupillary distance and fitting heights) built by someone who knows the dispensing counter from the inside.
Visual Acuity: What It Is, How It Is Measured, and What the Numbers Mean

Visual Acuity: What It Is, How It Is Measured, and What the Numbers Mean

Quick Answer: Visual acuity is reported in four interchangeable notations: Snellen imperial (20/20), Snellen metric (6/6), decimal (1.0), and logMAR (0.0), which all describe the same standard level of vision. A result of 6/12 is the same as 20/40 or decimal 0.5, a mild reduction still within the WHO’s no-impairment range. A result of 0.1 on the decimal scale is the same as 6/60 or 20/200, the U.S. legal blindness threshold.