[Use of of the high frequency capsulotomy instrument in cataract surgery--effect of coagulation on corneal endothelium].
Intumescent or hypermature cataracts make a safe capsulorhexis impossible. High frequency capsulotomy represents a satisfying solution for this problem. Primary goal of the present study was to investigate a possible damage to the corneal endothelium by this method.


METHODS
55 patients with an uncomplicated senile cataract were enclosed into a prospective randomized study undergoing cataract surgery with capsulorhexis or with high frequency capsulotomy. Corneal endothelium was examined preoperatively as well as postoperatively at several intervals.


RESULTS
Concerning loss of endothelial cells and parameters of polymegatism and pleomorphism there were no statistically significant differences between both groups.


CONCLUSIONS
The diathermy during high frequency capsulotomy does not show any clinically relevant negative effects on the corneal endothelium within cataract surgery.
Liekfeld
A
A
Klinik und Poliklinik für Augenheilkunde, Medizinische Fakultät, Humboldt-Universität, Berlin.
Pham
D T
DT
Schweig
F
F
Hartmann
C
C
D000368:Aged; D000369:Aged, 80 and over; D002387:Cataract Extraction / Q000295:instrumentation*; D004564:Electrocoagulation / Q000295:instrumentation*; D004728:Endothelium, Corneal / Q000473:pathology*; D004867:Equipment Design; D005260:Female; D006801:Humans; D007903:Lens Capsule, Crystalline / Q000601:surgery; D007910:Lenses, Intraocular; D008297:Male; D008838:Microcomputers; D011183:Postoperative Complications / Q000473:pathology*; D011446:Prospective Studies; D013525:Surgical Instruments