Selective Laser Trabeculoplasty (SLT)

Laser surgery has become increasingly popular as an intermediate step between medications and traditional glaucoma filtration surgery. Selective Laser Trabeculoplasty (SLT) is a relatively new laser treatment for open-angle glaucoma. 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 objective of the surgery is to help fluids drain out of the eye, reducing intraocular pressure that can cause damage to the optic nerve and loss of vision.

The selective technique is much less traumatic to the eye than Argon Laser Trabeculoplasty (ALT), which has been the standard laser procedure. ALT can cause tissue destruction and scarring of healthy cells in the trabecular meshwork structure. SLT reduces intra-ocular pressure without this risk. SLT can be used to effectively treat some patients who could not benefit from ALT. This includes patients who have already been treated with ALT.

Although your doctor may suggest laser surgery at any time, it is often performed after trying to control intra-ocular pressure with medicines. In many cases, you will need to keep taking glaucoma drugs even after laser surgery.

SLT is for those:

  • who have been diagnosed with glaucoma
  • whose doctor has determined that SLT is appropriate for controlling their intra-ocular pressure

What to expect on procedure day:

Your treatment will be performed in a specially equipped laser room. It does not require a surgery center. Once you have been checked in and settled comfortably, drops will be used to numb your eye; no injections or needles are used. When your eye is completely numb, an eyelid holder will be placed between your eyelids to keep you from blinking.

Your doctor will hold up a special lens to your eye as a high-peak power beam of green light is aimed at the lens and reflected onto the meshwork inside your eye. You may see flashes of bright green or red light. The laser will selectively target melanin-containing cells, resulting in increased fluid outflow. You will not feel any pain during the procedure. It takes 10-20 minutes.

Your eye pressure will be checked shortly after your procedure and drops may be prescribed to alleviate any soreness or swelling inside the eye. You should relax for the rest of the day. Follow-up visits are necessary to monitor your eye pressure. While it may take a few weeks to see the full pressure-lowering effect of this procedure, during which time you may have to continue taking your medication, many patients are eventually able to discontinue some of their medications. Most patients resume activities within a few days.

Realistic expectations:

The effect of the surgery may wear off over time. Serious complications with SLT are extremely rare, but like any surgical procedure, it does have some risks. Going to a specialist experienced in SLT can minimize the risks.

If you and your doctor decide that SLT is an option for you, you will be given additional information about the procedure that will allow you to make an informed decision about whether to proceed. Be sure you have all your questions answered to your satisfaction. If you would like more information about this procedure you can make an appointment or contact the office for additional information.

Mid-Peninsula Ophthalmology Medical Group

Ophthalmologists located in Menlo Park, CA

Mid-Peninsula Ophthalmology Medical Group, located in Menlo Park, CA, was founded in Palo Alto in 1960 and has established a legacy of superior comprehensive and specialty eye care in the peninsula over the past 55 years.

The true difference in our practice is our commitment to you, the patient. We make it our mission to take our time with you to discuss your concerns, and we use state of the art diagnostic and therapeutic technologies to take care of all of your eye issues.  We pride ourselves on being easily accessible, having very limited wait times, personally contacting you with your medical information, and being personally involved in all aspects of your exam and care. We value your time and the way our practice runs demonstrates that. 

We are committed to excellence, and our doctors provide the highest quality of care with a personalized approach that will best serve the individual needs of each patient. Our goal is to create a partnership with you, to ensure that you make informed decisions regarding your vision. Our physicians are board-certified ophthalmologists, members of the American Academy of Ophthalmology, and faculty members at Stanford University.

We want our office to be your one-stop destination for all of your eye care needs. Our physicians are trained in the most advanced techniques in eye exams, glaucoma evaluation, diabetic eye care, cataract surgery, vision correction surgery, eyelid surgery, and cosmetic facial rejuvenation. We also offer an array of glasses and contact lenses and operate a complete optical dispensary for your convenience.  Finally, we have a brand new in-office procedure room for your convenience. 

From treating vision disorders in all age groups to diagnosing ocular diseases or performing sophisticated eye surgery, MPOMG has a team of trusted specialists who make sure that you and your family receive the best eye care on the Peninsula.

Please contact our friendly staff to make an appointment or obtain information regarding our services.

Read more
Mid-Peninsula Ophthalmology Medical Group

Mid-Peninsula Ophthalmology Medical Group, located in Menlo Park, CA, was founded in Palo Alto in 1960 and has established a legacy of superior comprehensive and specialty eye care in the peninsula over the past 55 years.

The true difference in our practice is our commitment to you, the patient. We make it our mission to take our time with you to discuss your concerns, and we use state of the art diagnostic and therapeutic technologies to take care of all of your eye issues.  We pride ourselves on being easily accessible, having very limited wait times, personally contacting you with your medical information, and being personally involved in all aspects of your exam and care. We value your time and the way our practice runs demonstrates that. 

We are committed to excellence, and our doctors provide the highest quality of care with a personalized approach that will best serve the individual needs of each patient. Our goal is to create a partnership with you, to ensure that you make informed decisions regarding your vision. Our physicians are board-certified ophthalmologists, members of the American Academy of Ophthalmology, and faculty members at Stanford University.

We want our office to be your one-stop destination for all of your eye care needs. Our physicians are trained in the most advanced techniques in eye exams, glaucoma evaluation, diabetic eye care, cataract surgery, vision correction surgery, eyelid surgery, and cosmetic facial rejuvenation. We also offer an array of glasses and contact lenses and operate a complete optical dispensary for your convenience.  Finally, we have a brand new in-office procedure room for your convenience. 

From treating vision disorders in all age groups to diagnosing ocular diseases or performing sophisticated eye surgery, MPOMG has a team of trusted specialists who make sure that you and your family receive the best eye care on the Peninsula.

Please contact our friendly staff to make an appointment or obtain information regarding our services.


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Mid-Peninsula Ophthalmology Medical Group
1225 Crane Street
Suite 200
Menlo Park, CA 94025