Selective Laser Trabeculoplasty (SLT) for Effective Glaucoma Treatment

Selective Laser Trabeculoplasty (SLT) offers patients experiencing glaucoma a minimally invasive solution to manage eye pressure effectively. With its highly targeted approach, SLT is preferred by many for its comfort and efficacy. Connect with top specialists listed with Specialty Vision to find the right treatment for you.

Table of Contents

Comprehensive Guide to Selective Laser Trabeculoplasty (SLT) for Glaucoma Management & SLT Overview and Benefits for Your Eye Health & Understanding SLT & How SLT Works & Safe and Repeatable Treatment & Who is a Good Candidate for SLT? & Contraindications for SLT

Selective Laser Trabeculoplasty (SLT) is a safe and effective laser treatment designed to lower intraocular pressure (IOP) in patients with glaucoma and ocular hypertension. Developed in the mid-1990s, SLT offers a targeted approach that addresses excess eye pressure by improving natural fluid drainage through the trabecular meshwork. This modern treatment provides an alternative or supplement to daily eye drop regimens with the benefit of minimal side effects and rapid recovery.

SLT is a gentle laser procedure designed to help lower eye pressure by targeting specific pigmented cells in the eye’s drainage system. It offers a modern approach to managing glaucoma while keeping your comfort in mind.

The procedure uses a precise laser that emits very short pulses to heat targeted cells. This process encourages natural changes that improve fluid flow in your eye, supporting healthier pressure levels without harming nearby tissues.

One of the key benefits of SLT is its non-invasive nature. The treatment is safe and can be repeated as needed, giving you a reliable option to help maintain healthy eye pressure over time.

SLT is a valuable treatment option for a variety of patients experiencing challenges with glaucoma or ocular hypertension. It is particularly beneficial for those with open-angle glaucoma variants where the drainage pathway is accessible. Our glaucoma specialist recommends SLT for patients who:

  • Have primary open-angle glaucoma (POAG) or ocular hypertension (OHT)
  • Experience secondary open-angle glaucoma, such as pigmentary glaucoma, pseudoexfoliative glaucoma, or steroid-induced glaucoma
  • Struggle with the consistent use of glaucoma medications
  • Experience side effects from eye drops or have sensitivities to preservatives
  • Face challenges with self-administration of eye drops due to memory or mobility issues
  • Need additional IOP reduction after previous successful incisional glaucoma surgeries

SLT is also attractive for patients looking for a less burdensome treatment option that may reduce their reliance on daily medications.

While SLT is versatile, it is not the right choice for everyone. Patients with certain types of glaucoma may not benefit from the procedure. In particular, SLT is generally not recommended for individuals with:

  • Inflammatory glaucoma
  • Iridocorneal endothelial (ICE) syndrome
  • Congenital glaucoma
  • Neovascular glaucoma

Additionally, if one eye has shown no positive response to SLT, it is unlikely that further treatment in the other eye will yield a beneficial outcome. Also, while the procedure is typically painless, patients with severe anxiety or those who struggle with contact lens procedures may experience difficulty during treatment.

SLT Procedure Details & Preparation & The Laser Treatment & Post-Treatment Care & Post-SLT Recovery Expectations & Mild Inflammation & Transient IOP Spike

Before the procedure, our glaucoma specialist usually administers an IOP-lowering eye drop such as apraclonidine or brimonidine. This precaution helps prevent a temporary pressure spike. A numbing drop is also applied to ensure that you remain comfortable during the treatment.

A specially designed contact lens is gently placed on your eye to help focus the laser on the trabecular meshwork. The SLT laser then delivers short, controlled pulses to the target area. You might notice brief flashes of light, but you should not experience any pain during this process.

After the laser treatment, you may be given anti-inflammatory eye drops—such as prednisolone acetate—to reduce mild inflammation that sometimes occurs. A follow-up visit is scheduled to monitor your intraocular pressure and ensure the procedure’s effectiveness.

Following SLT, most patients experience minimal discomfort and can return to their usual activities on the same day. Here’s what is common post-procedure:

A slight redness or irritation may occur, but it typically resolves quickly.

A temporary increase in intraocular pressure might be observed right after the procedure. This is carefully monitored by our glaucoma specialist.

Blurry Vision & SLT Efficacy and Repeatability & Comparison of SLT with Other Treatments & SLT Compared to Emerging Laser Technologies & Non-Invasive and Repeatable & Safety Profile & Patient Comfort

Some patients report a few hours of blurred vision, which usually clears up without intervention.

Overall, the recovery process is straightforward, and the benefits of reduced dependency on daily medications make SLT an appealing option for many individuals.

One of the many reasons SLT is becoming an increasingly popular treatment is its proven efficacy. Clinical studies have shown that SLT can lower IOP by approximately 25-30% following a single 360-degree treatment, comparable to the effect of first-line prostaglandin analog eye drops. Results from clinical research have indicated that:

  • About 85-90% of patients respond positively to SLT in reducing eye pressure.
  • Long-term success is evident, with studies showing a 70% success rate at 6 months, 45% at 12 months, and 27% at 24 months in some research settings.
  • In pivotal trials like the LiGHT Trial, nearly 70% of treated eyes maintained target IOP without the use of additional medications for several years.

A key advantage of SLT is that it can be safely repeated. Because the procedure does not permanently damage the trabecular meshwork, it allows for additional treatments if the IOP reduction diminishes over time. Studies have found that repeat SLT treatments can yield pressure reductions similar to those achieved with the initial treatment, offering extended benefits for long-term glaucoma management.

For years, glaucoma management has centered around daily eye drops and surgical interventions. Traditional options include:

  • Topical eye drops, which require strict adherence and can have side effects, especially for patients with ocular surface sensitivities.
  • Argon Laser Trabeculoplasty (ALT), a precursor to SLT that, while effective, causes more tissue damage and cannot be repeated.
  • Surgical procedures such as trabeculectomy or tube shunts, which carry higher risks and longer recovery times.

SLT offers several advantages over these treatments. Unlike daily eye drops, SLT improves patient compliance by reducing medication dependency. Its selective targeting means less risk of tissue damage when compared with ALT, and since it is non-invasive, there is a lower risk of complications than with traditional surgeries. These benefits make SLT a versatile option, often used either as a first-line treatment for newly diagnosed patients or as a supplement when additional pressure reduction is needed.

While newer approaches like Excimer Laser Trabeculostomy (ELT) and Femtosecond Laser Image-Guided High-Precision Trabeculotomy (FLIGHT) are making strides in glaucoma management, SLT continues to hold an important place in treatment. Here’s what distinguishes SLT from these emerging technologies:

Unlike ELT, which is an ab-interno surgical approach requiring an incision, SLT is non-invasive and does not inflict permanent damage on the trabecular meshwork.

SLT has decades of proven safety data and is known for its minimal side effects and high repeatability, while newer techniques are still under clinical evaluation.

SLT offers a quick, outpatient procedure with minimal downtime compared to procedures requiring more extensive surgical interventions.

These factors underline why our glaucoma specialist often recommends SLT, particularly for patients looking for an effective treatment that combines solid clinical evidence with a less intrusive treatment experience.

Contact our skilled glaucoma specialist at [Practice Name], Dr. [Name], today to discuss how Selective Laser Trabeculoplasty (SLT) can help manage your eye pressure effectively. Don’t let glaucoma dictate your lifestyle—schedule your consultation now!

Practical Tips for a Successful SLT Experience & Set Realistic Expectations & Follow Pre-Treatment Instructions & Be Comfortable During the Procedure & Adhere to Follow-Up Visits & Discuss Any Concerns & Can SLT Be Used as a First-Line Treatment?

Preparing for SLT and ensuring its success involves working closely with your eye care provider. Here are some practical suggestions:

Understand that while SLT can bring significant IOP reduction, individual responses may vary.

Your doctor may prescribe pressure-lowering drops before the procedure; following these instructions can help minimize a temporary pressure spike.

Ensure that you are seated comfortably and that you understand each step of the process. Asking questions can help alleviate any concerns.

Regular monitoring post-procedure is essential. These visits help ensure that your IOP is well-controlled and allow for any necessary adjustments in your treatment plan.

If you experience unusual side effects or have pre-existing conditions, share these with your doctor. Personalized care is key to achieving the best outcomes.

Yes, SLT is increasingly being used as a first-line treatment for patients with primary open-angle glaucoma (POAG) and ocular hypertension. Many patients choose SLT because it can reduce or eliminate the need for daily eye drops, making treatment easier to manage over the long term.

How Long Does the Procedure Take? & Is SLT Painful? & How Soon Will I See Results? & What Are the Potential Side Effects? & Can SLT Be Repeated?

The entire SLT procedure usually lasts less than five minutes per eye. With additional time for preparation and post-treatment checks, most patients can complete their visit within a short period and return to normal activities the same day.

Most patients report little to no discomfort during SLT thanks to the use of numbing drops. The laser pulses are brief and do not cause pain, and any slight irritation afterward is typically temporary.

Many patients experience a gradual reduction in IOP over days to weeks following treatment. Regular follow-up visits help assess the effectiveness, and our glaucoma specialist can adjust your overall treatment plan based on these observations.

SLT is known for its safety, but as with any procedure, it may cause minor side effects such as:

  • Mild inflammation or redness
  • Temporary spikes in eye pressure
  • Slight blurry vision for a few hours

These effects are generally short-lived and managed effectively with simple post-procedure care.

Absolutely. One of the significant advantages of SLT is that it can be performed more than once if the initial treatment’s benefits begin to diminish. Since the procedure avoids permanent damage to the drainage system, repeat treatments have been shown to maintain effective IOP reduction over time.

Selective Laser Trabeculoplasty (SLT) for Effective Glaucoma Treatment

Contact our skilled glaucoma specialist at [Practice Name], Dr. [Name], today to discuss how Selective Laser Trabeculoplasty (SLT) can help manage your eye pressure effectively. Don’t let glaucoma dictate your lifestyle—schedule your consultation now!

Common Questions

Yes, SLT is increasingly being used as a first-line treatment for patients with primary open-angle glaucoma (POAG) and ocular hypertension. Many patients choose SLT because it can reduce or eliminate the need for daily eye drops, making treatment easier to manage over the long term.
The entire SLT procedure usually lasts less than five minutes per eye. With additional time for preparation and post-treatment checks, most patients can complete their visit within a short period and return to normal activities the same day.
Most patients report little to no discomfort during SLT thanks to the use of numbing drops. The laser pulses are brief and do not cause pain, and any slight irritation afterward is typically temporary.
Many patients experience a gradual reduction in IOP over days to weeks following treatment. Regular follow-up visits help assess the effectiveness, and our glaucoma specialist can adjust your overall treatment plan based on these observations.
SLT is known for its safety, but as with any procedure, it may cause minor side effects such as mild inflammation or redness, temporary spikes in eye pressure, or slight blurry vision for a few hours. These effects are generally short-lived and managed effectively with simple post-procedure care.
Absolutely. One of the significant advantages of SLT is that it can be performed more than once if the initial treatment’s benefits begin to diminish. Since the procedure avoids permanent damage to the drainage system, repeat treatments have been shown to maintain effective IOP reduction over time.
Amplify EyeCare cartoon

Selective Laser Trabeculoplasty (SLT) for Effective Glaucoma Treatment

Selective Laser Trabeculoplasty (SLT) is a safe, effective option for glaucoma management, offering reduced eye pressure with minimal side effects.

Logo Specialty Vision Stacked Fullcolor1

Find a Doctor

starchevron-downarrow-up