
| Vision Defect | Correction |
| short
sightedness |
wear (spectacles with) concave lenses |
| long sightedness |
wear (spectacles with) convex lenses |
| colour blindness |
|
| astigmatism (hazy /
distorted images due to abnormal curvature / shape of the
cornea and / or lens) |
wear (spectacles with) cylindrical lenses |
| presbyopia (inability of eye to focus due to aging) |
wear (spectacles with) bifocal lenses |

| Masalah Penglihatan |
Pembetualan |
| rabun jauh |
memakai
(cermin mata dengan) kanta cekung |
| rabun dekat |
memakai (cermin mata dengan) kanta cembung |
| buta warna |
|
| astigmatisme (penglihatan yang kabur akibat
ketidakseragaman kornea atau kanta mata) |
memakai (cermin mata dengan) kanta berbentuk
silinder |
| rabun tua |
memakai (cermin mata dengan) kanta dwifokus |