VO Revision

Keratometric reading is K(h) 44.50D and K(v) 46.50D. What is the amount of corneal astigmatism and what type is the astigmatism

• 2.00D, ATR

• 2.00 D, WTR

• -2. 00D, Mixed

• -2. 00D WTR

What is the amplitude of accommodation for an aphakic patient

• Infinity

• Zero

• Depends on age

• 14D

If the axial length of an eye is 25.5 mm provided that the corneal curvature is normal what will be the induced refractive error

• -1. 50D

• -4. 00D

• -4. 50D

• +1.00D

The unit of amplitude of accommodation is

• Diopter

• centimeter

• Meter angle

• Prism Diopter

Pincushion distortion is seen in which lenses

• High cylindrical lenses

• High plus lens

• High minus lens

• Aspheric lenses

What is the principal of Duochrome

• Chromatic Abberations

• Transverse Chromatic Abberations

• Spherical Abberations

• Longitudinal Chromatic Abberations

OD myopia OS hyperopia, what is this condition called

• Amblyopia

• Refractive error

• Anisometropia

• Antimetropia

What is the base direction to test negative fusional vergence

• Base out

• Base up

• Base in

• Base down

The nearest point when one can see clearly with full exertion of accommodation is known as

• Near point of convergence

• Near point of accommodation

• Far point of accommodation

• Amplitude of accommodation

In a myope with 1D what is the retinoscopic glow seen at working distance without a working distance lens using a concave mirror effect

• With

• Scissor

• Neutral

• Against