Optics and Refraction — Flashcards

Angle _____ is the angle between the optical axis and fixation axis at the centre of eyeball rotation

_____ is used for measurement of near point of convergence which is normally 70mm

In Ishihara pseudo-isochromatic chart, there are _____ plates read at a distance of 75 cm

Purkinje image 2 is formed from the _____ surface of the cornea and is Erect

Angle _____ is the angle between the visual axis and pupillary axis at the cornea

The _____ axis is the line passing through the object (fixation point) and centre of the lens to meet the fovea.

_____ is an objective method used to determine the error of refraction by applying the method of neutralization.

The _____ axis is the line passing through the center of the cornea and centre of the lens to meet the retina on the nasal side of the fovea.

_____ is a planoconcave lens used for examining the posterior vitreous and the fundus

In _____-the-rule astigmatism, the curvature of the vertical meridian is more than the horizontal meridian