Refractive condition of the eye

Question 1

is a refractive condition
where in parallel rays of light coming from
infinity with accommodation relax will form a
circle least of confusion exactly on the retina.

Answer 1

Emmetropia

Question 2

physiological condition where
in there is sclerosis of the crystalline lens
becomes less elastic and could not anymore
accommodate at near.

Answer 2

Presbyopia

Question 3

a refractive error where in parallel
rays of light coming from infinity with a
accommodation relaxed would form a circle
of least confusion in front of the retina

Answer 3

Myopia

Question 4

a refractive condition where in
parallel rays of light coming from infinity
would form a circle of least confusion
theoretically behind the retina

Answer 4

Hyperopia

Question 5

– a refractive error where in
parallel rays of light coming from infinity with
accommodation relaxed would form 2 or
more circle least of confusion or posterior
principal foci

Answer 5

Astigmatism

Question 6

where
in one focus is on the retina and the other is
behind the retina

Answer 6

Simple Hyperopic Astigmatism

Question 7

– where
in both foci are located behind the retina

Answer 7

Compound Hyperopic Astigmia

Question 8

where in one
focus is on the retina and the other is in front
of the retina

Answer 8

Simple Myopic Astigmia

Question 9

where in one focus in
front of the retina and the other is behind the
retina

Answer 9

Mixed Astigmia

Question 10

both foci are located in front of the retina

Answer 10

Compound Myopic Astigmia