The primary function of the cornea is to control and focus the entry of light into the eye, acting as the eye's outermost lens.
Cornea Functionality Explained
The cornea is a crucial part of the eye, performing essential functions that enable clear vision. Here's a breakdown of its functionality:
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Light Entry and Control: The cornea acts like a window, regulating the amount of light that enters the eye.
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Focusing Power: The cornea is responsible for a significant portion of the eye's focusing ability. It contributes between 65-75% of the eye's total focusing power. This allows us to see objects clearly at various distances.
| Feature | Description |
|---|---|
| Primary Function | Controlling and focusing light entry. |
| Focusing Power | Contributes 65-75% of the eye's total focusing power. |
| Analogy | Acts like a window, controlling what enters and how it's presented. |
Importance of a Healthy Cornea
A healthy cornea is essential for good vision. Damage or disease affecting the cornea can lead to blurred vision, pain, and even blindness.
