Argon Laser Trabeculoplasty (ALT)

ALT is typically recommended for primary open‑angle glaucoma when additional pressure lowering is needed, when drops cause side effects, or when adherence to drops is difficult. It can complement or follow medical therapy depending on disease status.

Using an argon laser, tiny spots are applied to the trabecular meshwork to enhance aqueous drainage. The mechanism involves tissue remodeling and improved outflow to reduce IOP and help slow glaucoma progression.

The eye is numbed with drops, a special contact lens gently stabilizes the eye, and the laser is delivered in short pulses. Treatment per eye usually takes just minutes, with pressure checks soon afterwards.

On average, ALT can lower IOP by about 20–30%, though its effect may lessen over time. Some patients require retreatment or additional therapies as the disease progresses.

Patients value our same‑day access to urgent needs, thorough education about treatment options, and seamless coordination of medical, laser, and surgical glaucoma care within a trusted community practice.

No. Numbing drops provide comfort, and any scratchy sensation afterward is mild and temporary.

IOP reduction may start within days to weeks, with the full effect often assessed at follow‑up visits in the weeks after treatment.

Results can last several years but may fade over time. Some patients need repeated laser or additional therapy to maintain target pressure.

Short‑term IOP rises can occur but are uncommon with preventive drops and careful monitoring. Most resolve quickly with standard medication.

Some patients reduce or stop drops after successful ALT, though many will still need long‑term medication or other treatments to maintain safe pressure.

Both target the trabecular meshwork to improve fluid outflow. ALT uses thermal energy with longer pulses, while SLT uses shorter, low‑energy pulses that minimize tissue damage. Both can be effective depending on the clinical setting.

ALT is performed by Dr. Diane Hilal‑Campo, a board‑certified ophthalmologist with more than 28 years of clinical experience serving patients in Oakland and the surrounding North Jersey community.