The YAG laser is also used to perform LPI or Laser Peripheral Iridotomy, a procedure for narrow-angle glaucoma.

Narrow-angle glaucoma occurs when the angle between the iris and the cornea in the eye is too small. This causes the iris to block fluid drainage, increasing inner eye pressure.


LPI makes a small hole in the iris, allowing it to fall back from the fluid channel and helping the fluid drain out of the eye. The laser procedure itself causes little sensation. Side effects, if any, may include transient blurring of vision, mild inflammation, temporary elevation of IOP and, less commonly, minimal bleeding at the treatment site. Eye drops are used immediately prior to treatment and for several days thereafter to control inflammation and minimize IOP rise. The small potential for side effects of laser treatment is far outweighed by the serious consequence of angle closure glaucoma if narrow anterior chamber angles are left untreated.

Why we use the YAG laser:

  • YAG procedure is completely painless
  • No anesthesia is needed
  • Does not require any preoperative tests
  • No operating room needed
  • Takes less than 5 minutes
  • Does not have any postoperative restrictions

Learn more about other treatments for glaucoma, such as laser trabeculoplasty. Call Benjamin Eye Institute today to schedule your eye exam at 310.507.7988.

Have your eyes treated
by an EXPERT.