Light — Question 12

In order to take care of our eyes we should do the following:

1. We should always read at the normal distance for vision. We should not bring the book too close to our eyes or keep it too far.
2. We should not look at the Sun or a powerful light directly.
3. Too little or too much light is bad for eyes. Insufficient light causes eyestrain and headaches. Too much light, like that of the Sun, a powerful lamp or a laser torch can injure the retina.
4. We should never rub our eyes. If particles of dust go into our eyes, we should wash our eyes with clean water or visit the doctor if need be.
5. If advised, we should use suitable spectacles.