Journal Entry 2
- what causes the defect
Long sightedness which is still unknown and short sightedness that is usually young people.
b.the symptoms displayed
Long sightdetness can make a person have sore eyes or a headache while short sightedness can make a person see objects from far blurry.
c.propose what sort of lens may be used to correct each vision.
Convex lenses that are thin at the edges are used for long sightedness while concave lenses which a thin in the middle are use for short sightedness.
