Aqueous humour is present

Options

A. in front of the retina
B. in front of the cornea
C. behind the conjuctiva
D. in front of the lens

Answer

**Step-by-Step Solution:**

1. **Understanding Aqueous Humor**: Aqueous humor is a clear, gelatinous fluid that is similar to plasma but has a lower concentration of proteins. It plays a crucial role in maintaining intraocular pressure and providing nutrients to the eye.

2. **Source of Aqueous Humor**: Aqueous humor is secreted by the ciliary epithelium, which is a tissue that supports the lens of the eye. This secretion is essential for the normal functioning of the eye.

3. **Location of Aqueous Humor**: Aqueous humor is located in the anterior chamber of the eye, which is the space between the cornea (the clear front surface of the eye) and the lens. It is important to distinguish this from the vitreous humor, which is found behind the lens.

4. **Identifying the Correct Answer**: Given the options provided (retina, cornea, conjunctiva, lens), the aqueous humor is specifically present in front of the lens. Therefore, the correct answer is "lens".

**Final Answer**: Aqueous humor is present in front of the lens.

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