The effect of combined application of argon and Nd-YAG lasers on iridectomy in rabbits.
- Author:
Chan PARK
1
;
Sang Wook RHEE
Author Information
- Publication Type:Original Article
- Keywords: combined application; Nd-YAG laser; laser iridectomy
- MeSH: Animals; Cornea/ultrastructure; Endothelium, Corneal/ultrastructure; Eye Hemorrhage/etiology; Iris/blood supply/*surgery/ultrastructure; *Laser Therapy/adverse effects; Lens, Crystalline/ultrastructure; Microscopy, Electron, Scanning; Rabbits; Random Allocation
- From:Korean Journal of Ophthalmology 1989;3(2):47-54
- CountryRepublic of Korea
- Language:English
- Abstract: Recently iridectomy using an argon or Nd-YAG laser to treat narrow angle glaucoma has become popular, and is now the procedure of choice over the standard surgical technique. However, the shock wave of the Nd-YAG laser causes hemorrhage in almost all cases and the high energy level of the Nd-YAG laser, which is required for iridectomy, causes injury to the lens and cornea. Furthermore, there is a tendency toward closure of the iridectomy site after argon laser application. We performed iridectomies by a combined application of argon and Nd-YAG lasers in pigmented rabbits to improve iris bleeding, iridectomy patency, and lens and corneal damage. The iridectomy patency and the lens and corneal damage were examined with a scanning electron microscope. The rabbits that underwent laser iridectomies with only the Nd-YAG laser were used as a control group. Based on the results, it can be concluded that laser iridectomy by a combined application of argon and Nd-YAG lasers results in a lower rate of bleeding, a higher rate of patency, and less damage to the lens and cornea as compared with iridectomy performed by Nd-YAG laser only.
