Getting Stronger: Discussion Forum

Discussion Topics => Rehabilitation => Topic started by: wtfgod on May 19, 2015, 01:51:16 PM

Title: How much to undercorrect for 20/40...ect
Post by: wtfgod on May 19, 2015, 01:51:16 PM
Currently working with -4(20/20) left and -10.25(20/30) right, how much would I undercorrect equally to get to 20/40? 20/60? Ect...


Also, what is the correction/distance connection? For example, you should use 20/20 to see something at 20 feet, 20/40 to see something at 10 feet, 20/80 to see something at 5 feet, or something to that effect.
Title: Re: How much to undercorrect for 20/40...ect
Post by: Alex_Myopic on May 20, 2015, 04:16:29 AM
Your refractive state of each eye plus the diopters ftom the conversion Snellen to diopters given for example by Mr Otis' reply
http://www.iblindness.org/forum/relationship-snellen-to-diopters (http://www.iblindness.org/forum/relationship-snellen-to-diopters)