Selective Laser Trabeculoplasty (SLT) is a laser procedure used to treat glaucoma by reducing the pressure in the eye. It can be used as an initial treatment, instead of eye drop medications, or as additional treatment when medications do not adequately reduce your eye pressure. SLT uses short pulses of low energy laser light to target melanin containing cells in a network of tiny channels, called the trabecular meshwork. The aim of the laser surgery is to help fluid drain out of your eye, reducing the intra-ocular pressure that can cause damage to the optic nerve and loss of vision. SLT procedure is not a cure for glaucoma but it can slow or stop the risk of your glaucoma progressing.

Surgery

The Selective Laser Trabeculoplasty procedure is done at Bowen Eye Clinic in the purpose built laser surgery facility. The procedure itself only takes 10-15 minutes but allow yourself to be at the clinic for 45 minutes. On the day of the surgery, eye drops will be placed in your eye both before the laser surgery (SLT) and after to decrease the amount of fluid in your eye. This will prevent any increased pressure in your eye after laser treatment. The laser will selectively target melanin containing cells resulting in increased fluid outflow.

Results

SLT has been used since 1985 and has a proven track record for efficacy. On average, SLT can lower eye pressure by 20-30%. About 80% of people respond to treatment and the effect will last anywhere from 1-5 years. If the treatment is successful, you may be able to reduce the number of eye drops you currently use to manage your glaucoma. The laser is not permanent and the rate of the efficacy loss depends on the individual.