Viva questions gemeral ophthalmology

WHO definition of blindness

• When the vision is reduced to less than 3/60 in the better eye and/or the visual field is less than 30 degrees in the better eye

What is the definition of visual acuity

how it is measured

method of taking visual acuity

what is pin hole test

what is stenopic slit

how pin hole improves vision

causes of reduced vision sudden

causes of reduced vision sudden

causes of blindness in the world

Refractive errors

what is refractive error

what are the refractive errors

what is the def of myopia

what re the types

what is pathological myopia

what are the complications/features of myopia

what is the treatment of myopia

how can you differential between concave and convex lenses

what is a retinoscope and its uses

what is an ophthalmoscope and its uses

what is distant direct ophthalmoscopy how it is done what are the uses

How can you differentiate between corneal, lenticular or vitreous opacity

what is a keratoscope and its uses

what is a keratometer and its uses

what is auto-referactor

what is visual field

how it is measured

what are the normal extents of visual fields

what is scotoma

what is positive scotoma and its causes

what is negative scotoma and its causes

what is a perimeter

what is a visual field analyser

what is placido's disc

what are the dark room test way are they now not necessary

what is refraction

what is cycloplegic refraction

what are the types of contact lenses

what are the complications of contact lenses

what the the latest surgeries for myopia

what is PRK

what is LASIK

What is mini RK

what are the complications of refractive surgery

What are is the definition of Hypermetropia

what is the treatment

What is refractive surgery

what are the complications of refractive surgery

what is astigmatism

what is strums conoid

what are the types of astigmatism

what is regular astigmatism

what is irregular astigmatism

what are the causes of irregular astigmatism

what is the treatment of astigmatism

what is with the rule astigmatism

what is against the rule astigmatism

In old age which astigmatism is common

how cataract surgery affects astigmatism

what is presbyopia

what is the treatment

name the surgeries for presbyopia

what is accommodation

what is the mechanism of accommodation

what is asthenopia