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YAG laser resection for the membrane on anterior surface of intraocular lenses
Abstract:
The results and methods of YAG laser resection for the membrane forming postoperatively on the anterior surface of intraocular lens (IOL) in 33 eyes (31 cases) were reported. A monomode single pulse YAG laser was used to do a circular incision along the pupilar margin and blow it up. A multimode defocus burst was used to peel off the shrunk flap from the lens surface. The membrane in 27 eyes (81.8%) was completely removed in the first resection. The mean burst number was 49.2 +/- 26.3. The average energy of each burst was 1.3 mJ and the average total energy of each treatment was 62.1 +/- 37.1 mJ. Except 3 eyes with little blood oozing from iris near the pupilar margin, 4 eyes having foggy spots on IOL surface and 2 eyes with mild transient increased intraocular pressure (IOP) after resection, there were no other complications. The resection is safe and effective, could be instead of the second operation for unabsorbable organized membranes or the membrane causing blockage glaucoma, could accelerate the recovery of visual acuity and shorten or substitute medical treatment for thick membranes.
Insights
YAG laser resection effectively removes postoperative membranes on intraocular lenses (IOLs). This safe and efficient method avoids repeat surgery, accelerates visual recovery, and reduces the need for medical treatment.
Area of Science:
- Ophthalmology
- Laser Surgery
Background:
- Postoperative membranes on intraocular lenses (IOLs) can impair vision.
- These membranes may necessitate further surgical intervention or prolonged medical treatment.
Purpose of the Study:
- To evaluate the safety and efficacy of YAG laser resection for anterior IOL membrane removal.
- To assess the outcomes of YAG laser treatment in patients with postoperative IOL membranes.
Main Methods:
- A monomode single pulse YAG laser was employed for circular incisions.
- A multimode defocus burst technique was utilized to detach membranes from the IOL surface.
- The procedure was performed on 33 eyes across 31 patients.
Main Results:
- Complete membrane removal was achieved in 81.8% of eyes during the initial resection.
- The average number of bursts was 49.2, with an average energy of 1.3 mJ per burst.
- Minor complications included slight iris bleeding (3 eyes), IOL fogging (4 eyes), and transient increased intraocular pressure (IOP) (2 eyes).
Conclusions:
- YAG laser resection is a safe and effective alternative to secondary surgery for IOL membranes.
- The procedure can accelerate visual acuity recovery and potentially replace medical management for thick membranes.
- It offers a valuable treatment option for membranes causing blockage glaucoma.