Selective laser trabeculoplasty (SLT) is a very effective way to control eye pressures in patients who cannot tolerate pressure-lowering eye drops or in whom such drops do not lower the eye pressure adequately. SLT makes microscopic holes in the trabecular meshwork (ie the drain in the eye) which allows the fluid in the eye to drain more easily and thus decrease the eye pressure. SLT is known for causing less tissue scar than Argon Laser Trabeculoplasty (ALT), and it can be repeated multiple times.
Complications are very rare and include: not lowering the eye pressure enough; rarely will the eye pressure go up after the procedure but that can happen.
We always give a non-steroidal or steroid after the procedure to keep the inflammation down to prevent the holes we make in the trabecular meshwork from clogging. Steroids have the potential to increase eye pressure, usually if used for more than 10-14 days.
This is a good paper to show both nonsteroidal drops & steroids drops help keep the eye pressure low after SLT.
NSAID drops for 4 days are a great alternative it appears to help with the mild inflammation that can happen after SLT.