Glaucoma typically progresses slowly, and most people do not notice changes in their vision early on. With time, it can damage the optic nerve and result in loss of vision if it is not controlled properly. That is why early surveillance and a regular follow-up become crucial. Laser treatments play a valuable role in today’s approach to glaucoma care. They help lower eye pressure, limit further damage, and offer a straightforward, low-discomfort option for many patients.
Speciality centres are now routinely offering laser therapies. They are quick. They are precise. They can also delay or even replace traditional surgery. If you are seeking to know how laser therapy for glaucoma works, the summary below will help you understand what it entails.
Laser Treatment for Glaucoma
Glaucoma develops when the pressure inside the eye rises, often because fluid cannot drain away. Laser treatments are used to facilitate this drainage, reduce pressure and prevent damage to the optic nerve.
Because different kinds of glaucoma behave differently, doctors select from a variety of laser techniques based on the structure of the eye and pressure readings. There are different types of glaucoma. Its primary forms include open-angle glaucoma, angle-closure glaucoma and secondary ones due to injury, inflammation or other eye conditions. Specific laser approaches are advantageous for each type. Glaucoma test cost will differ from centre to centre. It depends on the type of tests advised, the technology used, and whether advanced imaging is required.
The following are the various laser treatments available for glaucoma.
Selective Laser Trabeculoplasty (SLT)
SLT is one of the most common laser techniques currently used. It is suitable for open-angle glaucoma. It works by increasing the outflow of fluid through the trabecular meshwork. The process is simple.
- The doctor places numbing drops.
- An eye lens is mounted on the eye.
- A manual laser pulse is used.
- SLT does not burn or cut the tissue.
- Uses targeted light to help the eye’s drainage tissue work more efficiently.
Most patients resume their usual activities within hours. So if you’ve ever asked yourself, ‘Is glaucoma surgery painful?’, SLT is known for minimal discomfort. You will feel a gentle tap or a light flick. It is well tolerated by most patients.
SLT can take some time to be fully effective (up to a few weeks). Some patients may require additional sessions after a few years. The results and time frame of recovery may vary, as every eye is unique.
Laser Peripheral Iridotomy (LPI)
LPI is utilised for individuals at high risk of angle-closure glaucoma. In this state, the drainage angle becomes obstructed. Pressure can rise quickly. LPI involves making a small hole in the periphery of the iris. This is a bypass for the fluid. It prevents sudden pressure spikes. The procedure is short and performed with numbing drops.
LPI may cause brief discomfort and mild sensitivity for a day, but these effects typically resolve quickly. The procedure offers significant protection against sudden pressure spikes. Light sensitivity for a day is not unusual. But the advantages are substantial when it comes to preventing abrupt, severe attacks.
Other Laser Options
Some eyes need different procedures. One method gently opens the blocked area to allow fluid to flow more freely. Another slows down fluid production when pressure stays high. These options are used only when truly needed.
What to Expect During Laser Treatment
Before the Procedure
- Your doctor will check your eye pressure and vision.
- You might be told to discontinue some of your medications.
- Share your medical history and current prescriptions for safe planning.
- The doctor will explain how the laser works and what it feels like during treatment.
- Numbing drops will be applied to keep you comfortable.
During the Procedure
- Rest your chin and forehead on the machine to stabilise your head.
- A special lens is gently placed on your eye after anaesthetic drops are administered.
- The doctor positions your eye and ensures the angle or target area is clearly seen.
- The laser is applied in short, controlled bursts.
- The procedure typically lasts 10–15 minutes.
- There are no stitches, no bleeding, and no general anaesthesia.
After the Procedure
- You may be given anti-inflammatory drops to reduce mild irritation.
- Slight redness, mild pressure, or temporary bright spots are common.
- These usually settle within a short time.
- Many patients can return to normal activities the same day.
- Follow-up is important. Your doctor will check how well the pressure has reduced.
- Some people see improvement quickly, while others take a few days or weeks.
FAQs
1. How long does SLT or LPI take?
Typically, 10-15 minutes per eye.
2. Is glaucoma surgery painful?
Most procedures involve mild discomfort. SLT is especially gentle. Most patients describe it as quick and tolerable. If you are concerned that the SLT will cause you pain, discuss it with your doctor. They will discuss the local anaesthetic and comfort measures.
3. How long will the laser effect last?
SLT can last from 1 to 5 years. It can be repeated if needed.
Do Not Wait on Glaucoma. Get Checked Today.
If you have glaucoma or are at risk, early intervention can make a big difference. Glaucoma is not cured by laser treatment. It controls it. Regular monitoring remains essential. Eye pressure can fluctuate over time. Laser treatment is safe, accurate, and offered atVasan Eye Careacross the country. They have over 150 centres across five states: Tamil Nadu, Karnataka, Telangana, Andhra Pradesh, Kerala, and Puducherry.Visit your nearest Vasan Eye Care Hospital and protect your vision today. Timely intervention is critical for a healthy vision, so why wait?