MCQ Series 60: optometry and Ophthalmogy MCQ test series
1. For every 1 mm change in the radius of curvature of cornea, the refraction changes by
6.10 L power calculation depends on all except
9. Advantages of contact lenses over spectacles
1. For every 1 mm change in the radius of curvature of cornea, the refraction changes by
A.4 dioptre
B.5 dioptre
C.6 dioptre
D.8 dioptre
2. Image formation at different distances in the two principal meridians is called
A.Presbyopia
B.Emmetropia
C.Astigmatism
D. Myopia
3. The amount of hypermetropia which may be overcome by accommodation is
3. The amount of hypermetropia which may be overcome by accommodation is
A.Latent hypermetropia
B.Facultative hypermetropia
C.Manifest hypermetropia
D.None of the above
4. Spherical aberration is eliminated in
A.Periscopic lenses
B.Meniscus lenses
C. Aplanatic lenses
D.All of the above
5. De-centering of lenses is useful in
A. Asymmetrical face
B. Correction of squint
C.For near work
D. All of the above
6.10 L power calculation depends on all except
A.Axial length of eye
B. Anterior chamber depth
C. Keratometry values
D.Corneal thickness
7. Indication for use of cycloplegics in refraction include
A. in children
B. in convergent squint
C.with spasm of accommodation
D. all of the above
8. The hypermetropia which is unmasked by cycloplegics is called
A.Absolute hypermetropia
B.Manifest hypermetropia
C. Total hypermetropia
D.Latent hypermetropia
9. Advantages of contact lenses over spectacles
A. Greater field of vision
B.Cosmetically acceptable
C.Aberrations associated with spectacles eliminated
D.All of the above
10. Shortest acting cycloplegic is
A.Phenylephrine
C.Homatropine
B.Tropicamide
D.Cyclopentolate
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