Programm                 "Degeneration und Regeneration– Grundlagen, Diagnostik und Therapie"


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Abstract
Abstract

OCT-Measurement of the Peripapillary Nerve Fiber Layer Thickness after Macular Translocation with 360-Retinotomy

Meyer C. H., Eschstruth P., Schmidt J. C., Kroll P.
Department of Ophthalmology, Philipps University, Marburg

Purpose: Macula Translokation with 360-retinotomy (MT360) is achieved by a complete retinal detachment and mechanical rotation around the axis of the optic nerve. Although this maneuver causes traction on the retinal nerve fiber layer (RNFL), visual field defects are unknown. However, we observed an increased cupping of the optic nerve in one patient with additional glaucoma.
Method: A standardized circular optical coherent tomography (cOCT) was centered on the optic nerve to measure with a radius of 2 DD the peripapillary RNFL 6 months after MT360 in 16 patients. A comparison to preoperative and postoperative values and the fellow eye were performed.
Results: The average RNFL on the operated eye was preoperatively0. 138mm (Stqw.38,0) (n=6) and 0.131mm 6 months after MT360 (n=15) compaired to 0.129mm (Stqw.40,1) in the fellow eye (n=15). The difference between pre- and postoperative values and between both eyes was not significant.
Conclusions: Although a decreased RNFL can occur in separate cases, the RNFL remains constant compared with preoperative values and the fellow eye after MT360. Patients with advanced optic cupping should avoid MT360.


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