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Peripheral transscleral retinal diode laser for rubeosis iridis
C J Flaxel1, G B Larkin, D B Broadway
1Inland Eye Institute, Loma Linda University Medical Center, California, USA.
Purpose:
To evaluate the results of peripheral transscleral retinal diode photocoagulation with or without transscleral cyclodiode therapy in patients with rubeosis iridis with or without elevated intraocular pressure and no fundal view.
Methods:
Peripheral transscleral retinal diode photocoagulation was performed in 15 eyes of 13 patients in an attempt to promote regression of rubeosis. The fundus could not be seen in any of the 15 eyes, so conventional panretinal photocoagulation was not possible. Nine eyes had associated elevated intraocular pressure and were treated with concurrent transscleral diode cyclophotocoagulation.
Results:
All eyes showed regression of rubeosis. Of the nine eyes treated with combination therapy, six had stabilized intraocular pressure, and three developed hypotony. None of the eyes developed a peripheral retinal detachment, and one eye lost the ability to perceive light.
Conclusions:
This method is effective in treating patients with rubeosis iridis when the view of the fundus is inadequate for conventional panretinal photocoagulation and more extensive intraocular surgery is precluded. It may be combined with transscleral cyclophotocoagulation therapy to manage concurrent high intraocular pressure in rubeotic glaucoma, but this involves a risk of postoperative hypotony.