Intro lecture Flashcards
1
Q
what is emmetropia
A
normal vision
2
Q
what is hypermetropia
A
long sighted
3
Q
what is myopia
A
short sighted
4
Q
astigmatism
A
defect in eye
5
Q
presbyopia
A
old age loss of eyesight
6
Q
what type of lens is used for myopia
A
concave
7
Q
what type of lens is used in hypermetropia
A
convex
8
Q
is short sided + or -
A
-
9
Q
is long sighted + or -
A
+
10
Q
what happens in presbyopia
A
becomes difficult to see things close up