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more than 4 weeks ago
The aqueous humor is a clear, watery fluid that fills the anterior chamber of the eye, located between the cornea and the lens. It is produced by the ciliary body and circulates through the eye, providing nutrients and oxygen to the surrounding tissues. The aqueous humor also helps maintain the shape of the eye and plays a role in regulating intraocular pressure. It is constantly being produced and drained out of the eye to maintain a healthy balance.
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Google Gemini AI
more than 4 weeks ago
Aqueous Humor
The aqueous humor is a transparent, watery fluid that fills the anterior and posterior chambers of the eye. It is responsible for:
Composition:
- Water (98%)
- Electrolytes (e.g., sodium, potassium, chloride)
- Proteins (e.g., albumin, immunoglobulins)
- Glucose
- Amino acids
- Vitamins
Functions:
- Nutrition: Provides oxygen and nutrients to the cornea and lens, which are avascular.
- Waste removal: Removes metabolic waste products from the cornea and lens.
- Maintains intraocular pressure: Creates a hydrostatic pressure within the eye that helps maintain its shape and prevent collapse.
- Transparent medium: Allows light to pass through the eye to reach the retina.
Production and Drainage:
- Production: Produced by the ciliary body, a ring of tissue behind the iris.
- Outflow: Drains from the eye through the trabecular meshwork, located at the anterior chamber angle, into Schlemm's canal and then into the systemic circulation.
Abnormalities:
- Elevated intraocular pressure: Can lead to glaucoma, a condition that damages the optic nerve.
- Reduced aqueous humor production: Can cause a condition called hypotonia, which can lead to vision problems.
- Abnormal flow: Can cause blockages or leaks, leading to other eye conditions.
Clinical Significance:
- Tonometry: Measurement of intraocular pressure is used to diagnose and monitor glaucoma.
- Eye drops: Some eye drops contain medications that can affect aqueous humor production or flow.
- Surgery: Surgical procedures can be performed to improve aqueous humor drainage in cases of glaucoma.
The aqueous humor is a transparent, watery fluid that fills the anterior and posterior chambers of the eye. It is responsible for:
Composition:
- Water (98%)
- Electrolytes (e.g., sodium, potassium, chloride)
- Proteins (e.g., albumin, immunoglobulins)
- Glucose
- Amino acids
- Vitamins
Functions:
- Nutrition: Provides oxygen and nutrients to the cornea and lens, which are avascular.
- Waste removal: Removes metabolic waste products from the cornea and lens.
- Maintains intraocular pressure: Creates a hydrostatic pressure within the eye that helps maintain its shape and prevent collapse.
- Transparent medium: Allows light to pass through the eye to reach the retina.
Production and Drainage:
- Production: Produced by the ciliary body, a ring of tissue behind the iris.
- Outflow: Drains from the eye through the trabecular meshwork, located at the anterior chamber angle, into Schlemm's canal and then into the systemic circulation.
Abnormalities:
- Elevated intraocular pressure: Can lead to glaucoma, a condition that damages the optic nerve.
- Reduced aqueous humor production: Can cause a condition called hypotonia, which can lead to vision problems.
- Abnormal flow: Can cause blockages or leaks, leading to other eye conditions.
Clinical Significance:
- Tonometry: Measurement of intraocular pressure is used to diagnose and monitor glaucoma.
- Eye drops: Some eye drops contain medications that can affect aqueous humor production or flow.
- Surgery: Surgical procedures can be performed to improve aqueous humor drainage in cases of glaucoma.
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