Medical Health Encyclopedia

Both are effective, but certain patient groups may respond to one more than the other. For example, in general, African Americans may do better with laser surgery while trabeculectomy may be a better choice for Caucasians with no serious medical problems.

In general, surgery is a last resort. Doctors may, however, recommend surgery before drug therapies for patients unlikely to comply with difficult drug regimens or for patients who may have severe reactions from the glaucoma drugs. Women who plan on becoming pregnant should also discuss surgery with their doctor.

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Some studies are indicating that laser treatment performed as the initial treatment for glaucoma is as effective as medications in some cases. Findings in 2003 from a major comparison study suggested that 4 years after surgery there was little difference in visual field loss between trabeculectomy and medical treatment. There was, however, a higher risk for cataracts and loss of vision sharpness with surgery. On the other hand, side effects from medications may be ongoing and troublesome. It is important to note, however, that even surgery does not cure glaucoma, and over half of patients will require medication within 2 years. Experts who are against early surgeries also argue that studies on their success often omitted serious postoperative problems, such as late-onset infection, and quality of life assessments.