All statements about aqueous humor are false, except

Options

A. It is located between cornea and the lens , and it is a thin watery fluid
B. It is located between lens and retina and it is similar to CSF.
C. It is located between cornea and lens, and it is thick and viscous .
D. It is located between lens and retina and it is thin watery fluid

Answer

To solve the question regarding the statements about aqueous humor, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Structure of the Eye**:
- The eye consists of several parts including the cornea, lens, retina, and chambers filled with different fluids. The aqueous humor is specifically located in the anterior segment of the eye.

2. **Identify the Location of Aqueous Humor**:
- Aqueous humor is found in the anterior chamber, which is the space between the cornea and the lens. This is crucial for identifying the correct statement.

3. **Review the Options Provided**:
- Option 1: "It is located between cornea and lens and it is a thin watery fluid."
- Option 2: "It occurs between lens and retina and it is similar to CSF."
- Option 3: "It is located between cornea and lens and it is thick and viscous."
- Option 4: "It is located between lens and retina and it is a thin watery fluid."

4. **Evaluate Each Option**:
- **Option 1** is correct because it accurately describes the location and the nature of aqueous humor.
- **Option 2** is incorrect as it describes vitreous humor, which is located behind the lens.
- **Option 3** is incorrect because it mischaracterizes aqueous humor as thick and viscous, which is a property of vitreous humor.
- **Option 4** is incorrect because it also describes vitreous humor, not aqueous humor.

5. **Conclusion**:
- The only true statement about aqueous humor is found in **Option 1**: "It is located between cornea and lens and it is a thin watery fluid."

### Final Answer:
The correct statement about aqueous humor is: **Option 1: It is located between cornea and lens and it is a thin watery fluid.**

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