2 ms·
If I understand, it may have some mild effect on the impact of near- or far-sightedness (focusing exercises somewaht improve the range of distances at which you
by dragonwriter 1y ago
If I understand, it may have some mild effect on the impact of near- or far-sightedness (focusing exercises somewaht improve the range of distances at which you can effectively focs), and doesn't do anything for astigmatism or other vision issues.