Chapter·OphthalmologyOptics and Refraction

Physical OpticsDownloads

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1

What does a visual acuity test primarily assess?

AAbility to perceive light

BAbility to differentiate colors

CAbility to recognize shapes and details

DAbility to detect contrast

2

What is the true statement about retinoscopy with a plane mirror?

AIn myopia, the red glow moves in the same direction.

BRetinoscopy is done at 1 meter away from the patient.

CIn hypermetropia, the red glow moves in the opposite direction.

DIn emmetropia, the red glow moves in the opposite direction.

3

Principles used in Radio Therapy are:

AUltrasonic effect

BCharring of nucleoprotein

CInfrared rays

DIonizing radiation

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