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Ophthalmology Errors of Refraction 02d40455

All occur in process of accommodation of eye except

A
Contraction of sphincter pupillae
B
Dilatation of pupil
C
Change in lens curvature
D
Contraction of ciliary muscles
High-Yield Explanation
Ans. b (Dilatation of pupil). (Ref. Parson, Diseases of Eye, 18th/pg.49, Basak, 2nd /68)ACCOMMODATION is ability to see near objects clearly, by increasing converging power of eye.Its components include:1. Constriction of ciliary muscles and sphincter pupillae2. Constriction of pupil3. Change in lens curvature (anterior surface)

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