Difference between revisions of Guide:Reducing normalized
Jump to navigation
Jump to search
No edit summary |
No edit summary |
||
| Line 1: | Line 1: | ||
In general, you only want to reduce '''0.25 diopters from a full, 20/20 prescription'''. The 20/20 standard indicates that you can consistently read the 20 foot or 6 meter line on the [[Snellen chart]] from that distance in reasonably good lighting. Also when introducing a [[normalized]] reduction you should perform a "[[zero diopter reset]]". | In general, you only want to reduce '''0.25 diopters from a full, 20/20 prescription'''. The 20/20 standard indicates that you can consistently read the 20 foot or 6 meter line on the [[Snellen chart]] from that distance in reasonably good indoor lighting. Also when introducing a [[normalized]] reduction you should perform a "[[zero diopter reset]]". | ||
== See also == | == See also == | ||
Revision as of 17:51, 26 February 2021
In general, you only want to reduce 0.25 diopters from a full, 20/20 prescription. The 20/20 standard indicates that you can consistently read the 20 foot or 6 meter line on the Snellen chart from that distance in reasonably good indoor lighting. Also when introducing a normalized reduction you should perform a "zero diopter reset".