Sommer's sector

Sommer's sector is a term used in ophthalmology to describe a specific area of the optic disc where glaucoma damage is often first noticeable. This sector is named after the German ophthalmologist, Hans Sommer, who first described it.

Overview

The optic disc is the area of the eye where the optic nerve enters the retina. It is a crucial part of the visual system, as it is responsible for transmitting visual information from the retina to the brain. Sommer's sector is located in the inferior temporal region of the optic disc. This area is particularly susceptible to damage from glaucoma, a condition that causes increased pressure within the eye and can lead to vision loss.

Glaucoma and Sommer's Sector

Glaucoma is a group of eye conditions that damage the optic nerve, which is crucial for good vision. This damage is often caused by an abnormally high pressure in your eye. In the early stages of glaucoma, damage often occurs in Sommer's sector before it is noticeable in other areas of the optic disc. This is because the nerve fibers in this area are particularly susceptible to the increased pressure caused by glaucoma.

Detection and Diagnosis

The detection of damage in Sommer's sector can be an important early indicator of glaucoma. Eye examinations that include a detailed assessment of the optic disc can help to identify changes in this area. Tools such as ophthalmoscopy, optical coherence tomography (OCT), and visual field testing can be used to assess the optic disc and detect glaucoma damage.

Treatment

Treatment for glaucoma typically involves lowering the pressure in the eye to prevent further damage to the optic nerve. This can be achieved through the use of eye drops, laser treatment, or surgery. Regular monitoring of the optic disc, including Sommer's sector, is important to assess the effectiveness of treatment and detect any progression of the disease.

See Also

• Optic disc
• Glaucoma
• Ophthalmology
• Optic nerve
• Retina

Sommer's sector Resources
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