Fovea centralis of retina perceives

Options

A. Dim light
B. Diffuse light
C. Coloured light and bright light
D. Coloured light and dim light.

Answer

**Step-by-Step Solution:**

1. **Understanding the Fovea Centralis:**
- The fovea centralis is a small pit located in the macula lutea of the retina. It is responsible for sharp central vision.

2. **Photoreceptor Cells:**
- The retina contains two types of photoreceptor cells: rods and cones. Rods are sensitive to low light levels (dim light), while cones are responsible for color vision and function best in bright light.

3. **Location and Function:**
- The fovea centralis is densely packed with cone cells, which are essential for high-resolution vision and color perception. This is why it is the area of the retina that provides the clearest vision.

4. **Light Perception:**
- Given that the fovea is primarily composed of cone cells, it is specialized for perceiving bright light and colored light. This means that it does not effectively perceive dim light since rods, which are more sensitive to low light, are located in other areas of the retina.

5. **Conclusion:**
- Based on the functions and characteristics of the fovea centralis, it can be concluded that the fovea centralis perceives colored light and bright light. Therefore, the correct answer is colored light.

**Final Answer:**
The fovea centralis of the retina perceives colored light.

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