Optics and Refraction — Flashcards

Purkinje image 1 is formed from the _____ surface of the cornea and is Erect

1-mm increase in radius of curvature of the eye results in _____ dioptres of hypermetropia.

Purkinje image 3 is formed from the _____ surface of the lens and is Erect

Angle _____ is the angle between the optical axis and visual axis at the nodal point.

1-mm shortening of the anteroposterior diameter of the eye results in _____ dioptres of hypermetropia.

_____ sensitivity of the peripheral retina is one of the natural mechanisms to decrease aberration of the eye

Which Purkinje images are absent in aphakia?_____

Critical angle of the air cornea interface is _____ degrees.

In Protanomaly, _____ color perception is defective.

_____ (flip-cross technique) is used to refine the power and axis of the cylindrical lens.