Optics and Refraction — Flashcards

The _____ axis is the line passing through the object (fixation point) and centre of the rotation

Angle _____ is the angle between the line of sight and pupillary axis at the cornea

The _____ surface of the cornea is the most important factor influencing the focus of light rays on the retina.

_____ blindness is vision 1/60 to just perception of light

A condensing lens is needed in _____ ophthalmoscopy, usually of 20 D

In fundoscopy, more the power of condensing lens, _____ the magnification and more the field of view

High refractive index of the _____ of the lens than that of the peripheral cortex is one of the natural mechanisms to decrease aberration of the eye

Hruby lens provides a _____ field of vision with low magnification

Purkinje image 4 is formed from the _____ surface of the lens and is inverted

The _____ effect refers to the greater sensitivity of the retina to perpendicular rays than the oblique rays