[Results of cyclo-cryocoagulation of the ciliary body with probe temperatures of -70 degrees C and -82 degrees C in glaucoma].
Cryocoagulation of the ciliary body has few applications. Cryotherapy in our study was standardized: 8 applications, 4 mm posterior to the limbus, 55 s, 2.5-mm-diameter cryoprobe. The aim of this research was to optimize the method by comparing the side effects of the treatment and the results of 128 operations as seen at follow-up examinations. When an applicator at -70 degrees C had been used, 54% of 52 eyes showed an IOP < 21 mmHg 12 months after operation. In all cases and adjuvant therapy was necessary. The IOP in 73% of these eyes rose to 30 mmHg for short periods. It was necessary to reoperate in 39% of the whole group. When a cryoprobe at -82 degrees C had been used IOP was found to have normalized in 89% of 76 eyes. In this group 34% of cases needed no other therapy. The IOP in the treated eyes showed peaks up to 30 mmHg in 34%. We performed revision operations in 7.9%. It was only possible to normalize the IOP of hemorrhagic glaucoma and glaucoma connected with PEX by using -82 degrees C applicator. Examinations over 30 months after treatment show nearly the same results. Side effects of cryocoagulation of ciliary body were observed. Postoperative IOP peaks exceeding 55 mmHg were recorded in 10% of cases. These can be avoided by osmotic therapy. The anterior chamber was inflamed with exudation of fibrin in about 4% of patients treated with a -70 degrees C probe and 16% treated with one at -82 degrees C.(ABSTRACT TRUNCATED AT 250 WORDS)
Otto
P
P
Augenarztpraxis Berlin.
Harnisch
J P
JP
D000368:Aged; D002924:Ciliary Body / Q000503:physiopathology / Q000601:surgery*; D003452:Cryosurgery / Q000379:methods*; D005260:Female; D005500:Follow-Up Studies; D005901:Glaucoma / Q000503:physiopathology / Q000601:surgery*; D006801:Humans; D007429:Intraocular Pressure / Q000502:physiology; D008297:Male; D011183:Postoperative Complications / Q000503:physiopathology; D013696:Temperature
Ergebnisse der Zyklokryokoagulation des Ziliarkörpers mit Sondentemperaturen von -70 degrees C und -82 degrees C beim Glaukom.