Selective Laser Trabeculoplasty (SLT)
SLT is a laser procedure performed in the office to lower eye pressure.
Call Us: 215-928-3197
SLT is a laser procedure performed in the office to lower eye pressure.
Call Us: 215-928-3197
How does SLT work?
Laser energy is applied to the trabecular meshwork. The trabecular meshwork is located in the front of the eye and is the natural drain for fluid. SLT stimulates the trabecular meshwork to increase the amount of fluid drained from within the eye, which lowers eye pressure. It may take up to 2 months for the laser to take its full effect.
Who needs SLT?
Patients with open-angle glaucoma who need improvement in eye pressure control. This can be used alone or as an addition to eye drops.
What are the benefits?
On average, SLT can lower the eye pressure by about 20-30%. The laser is effective in lowering eye pressure in about 80% of patients. The laser effect wears off after several years, but the trabecular meshwork can be stimulated again with repeat laser. SLT does not affect the success rates or the eligibility of getting other medical or surgical treatments.
What are the risks?
Compared to many other treatments for glaucoma, including eye drops, other laser treatments and surgery, SLT has few side effects. Inflammation is possible after the laser but it is not common. You may be prescribed anti-inflammatory drops on an individual basis. There is a small risk of temporary high eye pressures shortly following the laser treatment. This is usually controlled with glaucoma medications.
Will SLT cure my glaucoma?
The simple answer is “No”. Glaucoma is a chronic disease that requires constant monitoring and treatment. The SLT procedure will help to lower your eye pressure. However, it will not reverse any loss of vision that has already occurred.
What should I expect if I have an SLT?
Your treatment will be performed in a specially equipped laser room in the clinic. Once you have been checked in, drops will be used to numb your eye and check the pressure. No injections or needles will be used.
What should I expect after SLT?
At the end of the laser treatment, the lens will be removed from the eye. The gel may remain on your eye for up to an hour, leading to blurred vision or a feeling of heaviness. As a safety measure, your eye pressure will be checked sometime after your procedure.
How long after the laser I will be seen?
Depending on the type and severity of your glaucoma you will be seen 1-6 weeks after the laser.
What eye drops will I use after the laser procedure?
Your doctor may ask you to use an anti-inflammatory eye drop in the treated eye for several days.
Can I stop my glaucoma drops after the laser procedure?
Your doctor will tell you which drops to continue using and how often after the laser procedure. Sometimes patients are able to reduce the number of eye drops they are taking. Even if you are taking the same glaucoma medications after the procedure, the surgery is a success if your pressure is lower. The need for eye drops long-term after this treatment varies greatly and depends on your type of glaucoma and the rate at which it is progressing.
Will my vision improve after the laser procedure?
This laser is for lowering the eye pressure and will not improve your vision.
What is the recovery time and what should I expect?
Will SLT cure my glaucoma?
The simple answer is “No”. Glaucoma is a chronic disease that requires constant monitoring and treatment. The SLT procedure will help to lower your eye pressure. However, it will not reverse any loss of vision that has already occurred.
For more information, please see:
American Academy of Ophthalmology patient information website