Sentences with phrase «visual acuity falls»

«When you move away from the fovea, visual acuity falls away really quickly, and colour vision disappears,» says Rensink.

An examination of the match between the two vision assessments (not reported earlier) showed that 91 respondents whose visual acuity fell in the moderately decreased to poor range rated their vision to be good to excellent and an additional 63 respondents whose visual acuity fell in the normal to good range rated their vision as fair or poor.

Not exact matches

If these patches become large and involve the very center of the macula (the fovea), the individual's visual acuity can fall to the point that he or she is considered legally blind.