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What is Glaucoma? 

Glaucoma is an eye disease that damages your optic nerve.
A clear fluid flows through passages inside your eye. With glaucoma, these passages get clogged or blocked. When this happens, fluid in your eye builds up and causes too much pressure inside the eye. Too much pressure can lead to damage and loss of your vision.

There are 2 major types of glaucoma: 

Primary open-angle glaucoma
This is the most common type of glaucoma.
The eye does not drain fluid as well as it should. When this happens, pressure builds and begins to damage the optic nerve. This form of glaucoma is painless and causes no vision change at first.  

Angle-closure glaucoma or
“Closed-angle” glaucoma

This occurs when a patient’s iris is near the drainage angle in their eye. The iris can end up blocking the drainage angle. When the drainage angle gets completely blocked, eye pressure rises at a rapid rate. This is known as an acute attack.

Many patient’s with angle-closure glaucoma develop it slowly. There are no symptoms at first, so many are unaware they have it until an acute attack. 

It is very important to visit an
ophthalmologist to check for glaucoma and other medical eye conditions.

A glaucoma specialist has a large list of treatments available. These include, medical eye drops, artificial drainage devices, and even surgery. 

Most cases of glaucoma can be controlled with one or more drugs. But some people may require surgery to reduce their eye pressure to a safe level by improving the outflow or drainage of fluids.

Laser Surgery 

This surgery is for people who have open-angle glaucoma. The eye surgeon uses a laser to make the drainage angle work better. This way, fluid flows out properly and eye pressure is reduced.

This is for people who have angle-closure glaucoma. The ophthalmologist uses a laser to create a tiny hole in the iris. This hole helps fluid flow to the drainage angle.

This surgery is done for people who already have eye damage caused by glaucoma. It maybe done when medicines and other surgeries have not helped control your glaucoma.
During surgery, your doctor will point a laser at the white part of your eye (sclera). The laser goes through the sclera to the ciliary body. The ciliary body is the part of the eye that makes eye fluid.

Non-Laser Procedure 

This is the most common surgical procedure for glaucoma. The procedure reduces the pressure inside the eye (IOP) in patients with glaucoma. This is achieved by making a small hole in the eye wall (sclera), covered by a thin trap-door in the sclera.




(210) 697-2020



Huebner Clinic
9157 Huebner Rd
San Antonio, TX 78240

Westover Hills Clinic
11212 State Hwy, 151, Plaza 2
San Antonio, TX 78251

Stone Oak Clinic
109 Gallery Circle,
San Antonio, TX 78258

Northeast Clinic
11900 Crownpointe Dr., Ste 140
San Antonio TX, 78233



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meet daniel nolan, d.o.

Medical School
The Chicago College of Osteopathic Medicine, Midwestern University

The University of Chicago, Chicago, IL

MacNeal Hospital, Berwyn IL

The University of South Florida,
Department of Ophthalmology, Tampa, FL


“I am hopeful for the future of glaucoma medical and surgical treatment as we look to cure this chronic disease.”