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KMID : 0360220110520111263
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Journal of the Korean Ophthalmological Society
2011 Volume.52 No. 11 p.1263 ~ p.1268
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Clinical Outcomes of Conjunctiva-Muller Muscle Resection and Factors Which Affect Success
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Park Dae-Il
Ha Sung-Woo
Lew He-Len
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Abstract
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Purpose: To investigate clinical outcomes and to analyze the factors of successful treatment of conjunctiva-Muller muscle resection (CMMR) in patients with mild to moderate ptosis.
Method: The medical records of 22 patients (30 eyes) with upper lid ptosis were retrospectively reviewed. All patients underwent conjunctiva-Muller muscle resections, and four patients (seven eyes) underwent concurrent upper lid blepharoplasty. The mean follow-up period was 81.62 ± 21 days. Pre- and post-operative MRD1, IPF and pupil to brow distance were measured using the Image J program. A preoperative phenylephrine test and a pathologic examination were performed to analyze the presence of Muller’s muscle and the tear secreting glands from the CMMR specimens.
Results: The overall success rate of the procedure was 93%. Postoperatively, the MRD1 increased on average by 1.47 mm (p = 0.00) and increased by an average of 1.72 mm when the phenylephrine test response was greater than 2 mm and by 0.99 mm when the response less than 2 mm. The Muller muscle was observed in every specimen.
Conclusions: Conjunctiva-Muller muscle resection is an effective and safe method for treating mild to moderate ptosis, for which the preoperative phenylephrine test result is the most important factor for surgical success.
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KEYWORD
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Conjunctiva, MRD1, Muller muscle, Phenylephrine test, Ptosis
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