Which part is the light-sensitive inner surface of the eye containing the receptor rods and cones?

Which part is the light-sensitive inner surface of the eye containing the receptor rods and cones?

• A. Retina
• B. Pupil
• C. Iris
• D. Optic Nerve

Answer: (A)

The retina is the light-sensing tissue lining the back of the eye. It contains the receptor cells called rods and cones, which detect light and convert it into neural signals. Rods are highly sensitive and detect light levels and motion, especially in dim conditions, while cones detect color and fine detail in brighter light. Light travels through the cornea and lens to the retina, where photoreceptors initiate the visual signal that travels to the brain via the optic nerve. The iris and pupil control how much light enters, and the optic nerve carries the processed information onward; but the actual light detection happens in the retina.

The retina is the light-sensing tissue lining the back of the eye. It contains the receptor cells called rods and cones, which detect light and convert it into neural signals. Rods are highly sensitive and detect light levels and motion, especially in dim conditions, while cones detect color and fine detail in brighter light. Light travels through the cornea and lens to the retina, where photoreceptors initiate the visual signal that travels to the brain via the optic nerve. The iris and pupil control how much light enters, and the optic nerve carries the processed information onward; but the actual light detection happens in the retina.