Question

Retina is most sensitive at
A. Optic disc
B. Periphery
C. Macula lutea
D. Fovea centralis

Answer 1

Hint: A yellowish area containing the fovea centralis located near the centre of the retina of the eye at which visual perception is most acute is called a yellow spot or macula lutea. When an eye is looking directly at an object, light rays from that object are focused on the macula lutea, a yellow oval spot at the centre of the retina.

Complete answer:
The retina is a black layer of eye made up of cells that are sensitive to light. The cells help to turn light into nerve impulse which travels through the optic nerve to the brain, where they are interrupted as image. In retina fovea centralis is the area of most distinct vision it is with a depression fovea centralis in its middle –N is the area of most distinct vision in day. yellow colour area or macula lutea are centrioles small areas on the retina which lie opposite to the optical axis of the lens. Only cones are present in that area so it's most sensitive to daylight vision. the correct answer is 'Fovea centralis'

In option (A) The circular area in the back of the eye where the optic nerve connects to the retina. It is also called the optic nerve head; it is not the most sensitive part. There is no light sensitive to respond to a light.

In option (B) The retina can be divided into two main anatomic regions – the macula and the peripheral retina. The macula is responsible for our fine, central, and color vision. The peripheral retina comprises over 90 percent of the retina and is responsible for our peripheral and night vision so this is not the most sensitive part this is not a correct option.

In option (C) The macula lutea has at its middle a shallow depression it is a small yellowish area of retina that provides central vision. fovea is the centre of macula is a depression which contains specialized nerve cells that are exclusively of the type known as cones. this is not a correct option.

Hence, the correct answer is option (D).

Additional information:
The retina method lights a layer of photoreceptor cells. These are essentially light-sensitive cells that are responsible for detecting qualities such as colour and light-intensity.

Note: The retina is back of your eye and it has light-sensitive cells called rods and cones. The retina is responsible for attaining and maintaining the intensity of light and converting it into neural signals.