Difference between revisions of 20/20 correction

@@ Line 1: / Line 1: @@
 '''''20/20 correction''''' is a correction you normally get from a licensed optician, which corrects your eyesight up to a degree of [[visual acuity]] that an [[emmetropic]] (or "normal-seeing") person achieves on a [[Snellen Chart]].
-If you can see 20/15 or even better, this means that your are [[overcorrected]]. (It is not necessarily considered super-human actuity, but it is unnecessary to correct to this level.)
+If you can see 20/15 or even better, this means that you are [[overcorrected]]. (It is not necessarily considered super-human acuity, but it is unnecessary to correct to this level.)
-It is very difficult to perform [[Active Focus]] at this strength of glasses, as there is not enough of a [[blur horizon]] to produce [[stimulus]] - see [[Distance vision]].
+It is very difficult to perform [[Active Focus]] at this level of correction, as there is not enough of a [[blur horizon]] to produce [[stimulus]] - see [[Distance vision]].
 ==See also==
 [[20/x vision]]