A Scan biometry measurements are essential before what type of Surgery ?
Right Ans - Cataract Surgery
A Scan Biometry is used to measure the ? Right Ans - Axial length of the eye
A scan biometry and keratometry readings are used to determine? Right
Ans - The power needed for a intraocular lens
Optician Right Ans - Eye care personal specializes in fitting spectacles
Orthoptist Right Ans - Eye care personal specializes with eye movement
and the extraocular muscles
What test illuminates the screen with a filter that is red on one side and green
on the other ? Right Ans - Worth 4 - dot
Vertex Distance Right Ans - The distance from the cornea to the back
surface of the spectacle lens
Rim Right Ans - Part of the spectacles connects the two lenses
The measurement used to determine the distance between the optical center
of spectacle lenses is the Right Ans - Pupillary distance ( PD )
The optical centers of spectacle lenses must be properly aligned in order to
avoid this effect ? Right Ans - Prismatic
Which eye drop paralyzes accommodation and thereby allows all of the
hyperopia to be uncovered ? Right Ans - Cycloplegic
Retinoscopy is an example of what type of refractometry Right Ans -
Objective
Bending of light is called Right Ans - refraction
The condition in which the eye does not refract light equally in all directions is
? Right Ans - Astigmatism
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