Trans-scleral application of a semiconductor diode laser.
We used a diode laser with an output power of 1 W through a fiberoptic light pipe (200 microns diameter) to deliver laser energy through the sclera of pigmented rabbits. Ciliary body destruction occurred with energy levels of 300-400 mW and exposure time of 0.5 sec. Retinal photocoagulation was achieved with energy levels of 200-500 mW in 0.5 sec. Histologic examination of acute lesions demonstrated thermal destruction of ciliary body processes and retina. Chorioretinal scar formation was observed clinically and histologically within 2-3 weeks. Our data indicate that the transscleral diode laser may be used for destruction of the ciliary body processes or peripheral retinal coagulation in pigmented eyes.
Peyman
G A
GA
LSU Eye Center, Louisiana State University Medical Center School of Medicine, New Orleans 70112.
Naguib
K S
KS
Gaasterland
D
D
D000818:Animals; D002924:Ciliary Body / Q000473:pathology / Q000601:surgery*; D007834:Lasers; D008028:Light Coagulation / Q000379:methods*; D009336:Necrosis; D011817:Rabbits; D012160:Retina / Q000473:pathology / Q000601:surgery*