Visual Acuity Converter (Snellen / logMAR / decimal)
Visual Acuity Converter (Snellen / logMAR / decimal) - a deterministic tool in Sophie Well's Clinical Math & Conversions group.
Open the Visual Acuity Converter (Snellen / logMAR / decimal) → Runs in your browser. No signup, no tracking.
What this is
Visual Acuity Converter (Snellen / logMAR / decimal) is one of 230 deterministic tools in Sophie Well's Clinical Math & Conversions group. Visual Acuity Converter (Snellen / logMAR / decimal) - a deterministic tool in Sophie Well's Clinical Math & Conversions group.
When to use it
Use this tool when you need a quick, citable reference. Every calculation runs entirely in your browser - no inputs leave your device, no account is required, no AI is involved. The site enforces a strict Content Security Policy and ships no analytics or third-party CDN.
References
Holladay JT. Visual acuity measurements. J Cataract Refract Surg. 2004;30(2):287-290. Read the source ↗
Worked example: Snellen 20/40 (6/12) = decimal 0.5 = logMAR 0.3.
Sophie Well is a reference and educational tool. Not medical, legal, or financial advice. Does not replace clinician judgment, professional billing review, or legal counsel.