D:-4 mm
Correct Answer:- Option-B
Question39:-Bending of light as it passes along the edge of an object
A:-Spherical aberration
B:-Diffraction
C:-Chromatic aberration
D:-Decentration
Correct Answer:- Option-B
Question40:-Amount of hypermetropia normally corrected by the inherent tone of ciliary muscle
A:-Facultative
B:-Manifest
C:-Latent
D:-Absolute
Correct Answer:- Option-C
Question41:-Normal depth of anterior chamber is
A:-5 mm
B:-4.5 mm
C:-2.5 mm
D:-1 mm
Correct Answer:- Option-C
Question42:-The amplitude of accommodation at the age of 10 years
A:-3 Diopter
B:-14 Diopter
:-10 Diopter
D:-5 Diopter
Correct Answer:- Option-B
Question43:-All the following signs are usually associated with myopia EXCEPT
A:-Large eyeball
B:-Deep anterior chamber
:-Esophoria
D:-Exophoria
Correct Answer:- Option-C
Question44:-Astigmatism in which the two principal meridians are not at right angles to each other?
A:-Oblique astigmatism
-Regular astigmatism with the rule
C:-Irregular astigmatism
D:-Bi oblique astigmatism
Correct Answer:- Option-D
Question45:-All the following are features of aphakia EXCEPT
A:-Deep anterior chamber
-Iridodonesis
C:-Jet black pupil
D:-Shallow anterior chamber
Correct Answer:- Option-D
Question46:-Image magnification with aphakic spectacle lens is
A:-10%
B:-30%
C:-5%
D:-8%
Correct Answer:- Option-B
Question47:-Large corneal scar usually produces
A:-Irregular astigmatism
-Bi oblique astigmatism
C:-Oblique astigmatism
D:-Regular astigmatism against the rule
Correct Answer:- Option-A
Question48:-All the following are true of pterygium EXCEPT
A:-Occurs more commonly in elderly people doing outdoor work
B:-Seen in the interpalpebral exposed areas