HomeMedicine & HealthDiseases & Conditions (continued)What is Glaucoma?
Medicine & Health·1 min·Updated Mar 15, 2026

What is Glaucoma?

Glaucoma

Quick Answer

Glaucoma is a group of eye conditions that damage the optic nerve, often due to high eye pressure. It can lead to vision loss if not treated, making early detection important.

Overview

Glaucoma occurs when fluid builds up in the eye, increasing pressure and potentially damaging the optic nerve. This nerve is crucial for sending visual information from the eye to the brain. There are different types of glaucoma, with open-angle glaucoma being the most common, where the drainage system of the eye becomes less efficient over time. The condition often develops slowly and without noticeable symptoms in its early stages, which is why regular eye exams are essential. For example, a person may not realize they have glaucoma until they experience significant vision loss. This is particularly concerning because once vision is lost due to glaucoma, it cannot be restored, highlighting the importance of early diagnosis and management. Glaucoma matters because it affects millions of people worldwide and is a leading cause of irreversible blindness. It can impact daily life, making simple tasks like reading or driving challenging. Understanding glaucoma and its risks can help individuals take proactive steps to protect their vision.


Frequently Asked Questions

Many people with glaucoma do not notice symptoms until significant damage has occurred. Common signs may include tunnel vision or sudden loss of vision in one eye.
Glaucoma is diagnosed through a comprehensive eye exam that includes measuring eye pressure, examining the optic nerve, and testing peripheral vision. Regular eye check-ups are crucial for early detection.
While there is no cure for glaucoma, it can be managed with medications, laser treatments, or surgery to lower eye pressure. Early treatment can help preserve vision and prevent further damage.