What are Cones?
Cones are the other type of photoreceptor cells present in the human retina. Unlike rods, cones are shorter and tapered, resembling a cone shape. These cells are less numerous compared to rods, with approximately 6 to 7 million cones in the retina. They are mostly concentrated in a small depression at the centre of the retina called the fovea. This area is responsible for high visual acuity which enables us to focus on fine details and perform tasks that require sharp vision, such as reading and recognizing faces. They contain a violet-coloured pigment known as Iodopsin or Visual Violet.
Function of Cones
- Cones are responsible for our vision in well-lit conditions, especially during the daytime.
- Cones have a lower sensitivity to light which makes them less effective in dim environments.
- Cones excel at colour vision and allow us to perceive a wide range of colours.
- There are three types of cones each containing different photopigments that are sensitive to red, green, and blue light wavelengths.
Also Read: Human Eye
Difference Between Rods and Cones
The difference between rods and cons lies in their functions and distribution within the retina. The rods and cones are two different kinds of photoreceptors present in the retina. Rods are more sensitive to low light and are primarily responsible for night vision, while cones are responsible for colour vision and function best in bright light conditions. In this article, we will cover the major differences between rods and cons and their similarities.
Table of Content
- What are Rods?
- What are Cones?
- Difference Between Rods and Cones
- Similarities between rods and cones
- Conclusion – Difference Between Rods and Cones
- Difference Between Related Links
- FAQs on Difference Between Rods and Cones