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Limitation of 25-gauge vitrectomy instrumentation in highly myopic eyes
Ajay Singh1, Amania A Fawzi, Jay M Stewart
1Department of Ophthalmology, University of California, San Francisco 94143-0730, USA.
Abstract:
In highly myopic eyes, a 25-gauge soft-tip needle is unable to remove fluid completely during air-fluid exchange because the needle is too short to reach the back of the elongated globe. In the simulated example, we found that the standard soft-tip cannulated needle is unsuitable for use in eyes with axial lengths greater than 31 mm. Other 25-gauge instruments are similarly unable to reach the back of a long eye.
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