Optotype Size Calculator icon

Optotype Size Calculator

Sharp Sight Software
Free
100+ downloads

About Optotype Size Calculator

This app allows you to calculate the exact dimensions of the visual acuity chart optotypes. It includes the most common chart notations and line sizes.
The following notations are included:
- US Feet (20/20|20/25|20/32|..etc)
- UK Metric (6/6|6/7.5|6/9.5|..etc)
- Decimal (1.0|0.8|0.63|..etc)
- LogMAR (0.0|0.1|0.2|..etc)

Just enter the chart distance, notation type, and line size, and get the optotype size corresponding to this criteria.

Optotype Size Calculator Screenshots