PubMed · 422525
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E W Massey, A B Pleet. 1979. Lid retraction test.. https://pubmed.ncbi.nlm.nih.gov/422525/
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Advancement of the capsulopalpebral head at the time of inferior rectus recession has been described as a technique to minimize postoperative lower-eyelid retraction. In a prospective randomized masked clinical trial, this technique combined with inferior rectus recession was compared with inferior rectus recession alone, with respect to post-operative lower-eyelid retraction. The mean (+/- SD) postoperative lower-eyelid retraction was 0.7 +/- .82 mm for patients in whom the capsulopalpebral head was advanced, as opposed to 1.3 +/- .85 mm for the control group. This difference was statistically significant (Student's t = 2.787; P = .006).
We used a new radiofrequency surface coil and complementary software in eyelid magnetic resonance imaging. This custom-designed coil allows visualization of the eyelid structures in submillimeter resolution, providing detailed delineation of such structures as the orbital septum, levator aponeurosis, Müller's muscle, and orbital septa. The effect of Whitnall's ligament on the levator aponeurosis can be observed as a "tenting" of the aponeurosis; the change in vector force is persistent in upgaze and downgaze. This technology will allow accurate dynamic studies of eyelid anatomy in patients with various anatomically based eyelid diseases, before and after surgery, making it possible to test in vivo longstanding theories of normal and pathologic eyelid physiology.