Graded Mullerectomy for Correction of Graves Upper Eyelid Retraction: Effect on Eyelid Movements

• Type: Article in International Scientific Journal
• Date: 2014

Authors

Teixeira Ribeiro, SFT (Author) Other; Garcia, DM (Author) Other; Leal, V (Author) Other; Faria Correia, F (Author) Other; Rocha-Sousa A (Author) FMUP; Falcão-Reis F (Author) FMUP; Velasco e Cruz, AAVE (Author) Other

Journal

Title: Ophthalmic Plastic and Reconstructive Surgery

Vol. 30

Pages: 384-387

ISSN: 0740-9303

Publisher: Wolters Kluwer Health

Indexing

ISI Web of Knowledge - 2 Citations

Scopus - 3 Citations

Other information

Authenticus ID: P-009-V4T

DOI: 10.1097/iop.0000000000000116

Abstract (EN): Purpose: To measure the effect of m llerectomy from posterior approach on the amplitudes of spontaneous blinking and downward eyelid saccades. Methods: Spontaneous blinks and downward upper eyelid saccadic movements of 16 patients (23 eyelids) with Graves orbitopathy were measured before and after m llerectomy from posterior approach. A new video system was used to continuously register the blinking activity while subjects viewed a commercial movie for 5 minutes. Downward eyelid saccades (30 degrees of downgaze) were also measured with the video system. Results: M llerectomy had no effect on the amplitude of the blink. However, as the eyelid margins were significantly lowered by the surgery, the amplitude of the blink movements relative to the pupil center increased substantially. The number of movements occluding the pupil center increased from 0% to 13%. Due to the increased efficiency of blinking, the blink rate decreased. Surgery induced a mean increase of 1.1 mm of downward saccades. Conclusions: The effects of m llerectomy on the blinks are indirect and related to correction of eyelid retraction. The relative amplitude of blink movements increases and blink rate decreases. M llerectomy does affect the downward eyelid saccades increasing the ability of the upper eyelid to relax on downgaze.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 4