What is the primary function of the retina?

What is the primary function of the retina?

• A. To direct light to the lens
• B. To process and transmit light signals to the brain
• C. To maintain eye pressure
• D. To filter out excess light

Answer: (B)

The primary function of the retina is to process and transmit light signals to the brain. Located at the back of the eye, the retina contains photoreceptor cells known as rods and cones. These cells convert light into electrical impulses, which are then sent through the optic nerve to the brain for interpretation. This conversion is crucial for vision, as it allows us to perceive shapes, colors, and movements. The rods are responsible for vision in low light conditions, while the cones enable color vision and function best in bright light. The retina's ability to process visual information is essential for forming a clear and accurate image of our surroundings, ultimately allowing us to make sense of the visual world.

The primary function of the retina is to process and transmit light signals to the brain. Located at the back of the eye, the retina contains photoreceptor cells known as rods and cones. These cells convert light into electrical impulses, which are then sent through the optic nerve to the brain for interpretation. This conversion is crucial for vision, as it allows us to perceive shapes, colors, and movements.

The rods are responsible for vision in low light conditions, while the cones enable color vision and function best in bright light. The retina's ability to process visual information is essential for forming a clear and accurate image of our surroundings, ultimately allowing us to make sense of the visual world.