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Abstract
Purpose
To assess surgical outcomes after adjusting the amount of resection of the conjunctiva and the Müller muscle according to 10% phenylephrine test results.
Methods
The charts of 32 patients (32 eyes) with mild upper eyelid ptosis were reviewed retrospectively. They all had conjunctiva-Müller muscle resections. A preoperative 10% phenylephrine test was performed to determine the resection amount of the Müller muscle and conjunctiva. An 8 mm resection was performed when phenylephrine raised the ptotic lid to the same level as that of the contralateral lid. A 7 mm resection was performed when the ptotic lid was raised to a level higher than that of the contralateral lid. A 9 mm resection was performed when the ptotic lid was raised to a level not quite to the level of the contralateral lid.
Results
Of the 32 patients, 28 were female and 4 were male. The mean age of the patients was 30.8±10.2 years. Patients were followed up for an average of 40.2±36.8 days, postoperatively. Postoperative upper lid positions were exactly symmetrical in 26 of the 32 patients. Five patients showed undercorrection, and 1 patient showed overcorrection.
References
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Figure 2.
The preoperative (A) and postoperative (B) photographs of a symmetrically corrected patient.
Table 1.
Marginal reflex distance 1 (MRD1, mm) and resection amount (mm) of ptotic patients whose ptotic eyelids became same level as contralateral eyelid after the phenylephrine test
| Variables | Value (mm) (n=15) |
|---|---|
| Contralateral eyelid preoperative MRD1 | 2.9±0.8 |
| Ptotic eyelid | 1.7±0.8 |
| Post-phenylephrine test MRD1 | 2.9±0.8 |
| Postoperative MRD1 | 2.8±0.8 |
| Postoperative MRD1 difference | -0.1±0.2 |
Table 2.
Marginal reflex distance 1 (MRD1, mm) and resection amount (mm) of ptotic patients whose ptotic eyelids were raised lower than the contralateral eyelid after the phenylephrine test
| Variables | Value (mm)(n=9) |
|---|---|
| Contralateral eyelid | 2.8±0.4 |
| Preoperative MRD1 Ptotic eyelid | 0.9±0.8 |
| Post-phenylephrine test MRD1 | 2.2±0.4 |
| Postoperative MRD1 | 2.6±0.5 |
| Postoperative MRD1 difference | -0.2±0.4 |
Table 3.
Marginal reflex distance 1 (MRD1, mm) and resection amount (mm) of ptotic patients whose ptotic eyelids were raised higher than the contralateral eyelid after the phenylephrine test
| Variables | Value (mm) (n=8) |
|---|---|
| Contralateral eyelid Preoperative MRD1 | 2.5±0.8 |
| Ptotic eyelid | 1.0±0.8 |
| Post-phenylephrine test MRD1 | 3.3±0.9 |
| Postoperative MRD1 | 2.6±0.7 |
| Postoperative MRD1 difference | 0.1±0.2 |
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