What is the amplitude of accommodation for an aphakic patient

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

The unit of amplitude of accommodation is

Pincushion distortion is seen in which lenses

What is the principal of Duochrome

OD myopia OS hyperopia, what is this condition called

What is the base direction to test negative fusional vergence

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

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

State true or false:

In JCC the cylindrical component is twice the power of the spherical component

The handle of the JCC is placed on the spectacle cylindrical axis to refine the power

Near retinoscopy comments on accommodation response

Fogging is a technique to relax accommodation during subjective refraction

Dynamic retinoscopy gives objective refraction of the eye while fixating at near

for measurement of presbyopic addition JCC cannot be used

Spherical equivalent of JCC should be zero

dioptric difference between near point and far point of accommodation is called range of accommodation

A patient with axial anisometropia will have unity is RSM while using contact lenses

Normal age related amplitude of accommodation can be given by Hofstetter's Formula

Calculate the far point, amplitude and range of accommodation of a patient who is mypoic of 3.50Ds with NPA: 10cm

Calculate AC/A Ratio IPD: 50mm Near Phoria is 10 BO Distance phoria is 15 BO WD: 40cm

Calculate AC/A Ratio if original deviation was 10 BI with a -1.00D lens the phoria changes to 15 BI

Calculate the near add of a 46 year old man with working distance 40 cm

what are the 3 principles of JCC