In mammalian eye- the -fovea- is the center of the visual field whereHigh density of cones occur but has no rodsOnly rods are presentThe optic nerve leaves the eyeMore rods than cones are found

Question

Toppr Admin · Accepted Answer

The-xA0-fovea-xA0-centralis is a small- central pit composed of closely packed cones in the eye- It is located in the center of macula lutea of the retina-xA0-It is responsible for sharp central vision which is required during driving and reading- This region has a high density of cones but rods are absent-xA0-The central fovea consists of very compact cones- thinner and more rod-like in appearance than cones found elsewhere-xA0-Since the fovea does not have rods- it is not sensitive to dim lights- So- the correct answer is option B-

	Column I		Column II
(a)	Rods and cones	(i)	Absence of photoreceptor cells
(b)	Blind Spot	(ii)	Cones are densely packed
(c)	Fovea	(iii)	Photoreceptor cells
(d)	Iris	(iv)	Visible coloured portion of the eye

In mammalian eye, the 'fovea' is the center of the visual field whereHigh density of cones occur but has no rodsOnly rods are presentThe optic nerve leaves the eyeMore rods than cones are found

In mammalian eye, the 'fovea' is the center of the visual field where
High density of cones occur but has no rods
Only rods are present
The optic nerve leaves the eye
More rods than cones are found