The Y-splitting procedure divides the lateral rectus muscle tendon lengthwise into two halves that are then reinserted 10-15 mm apart on the sclera in a “Y” configuration. This stabilizes the muscle during co-contraction by preventing the “slipping leash” effect where the tendon slides over the sclera, producing vertical deviations. Y-splitting reduces incomitant vertical deviations that increase with lateral gaze, as seen in Duane syndrome, while preserving some abduction.
The Y-splitting procedure divides the lateral rectus muscle tendon lengthwise into two halves that are then reinserted 10-15 mm apart on the sclera in a “Y” configuration. This stabilizes the muscle during co-contraction by preventing the “slipping leash” effect where the tendon slides over the sclera, producing vertical deviations. Y-splitting reduces incomitant vertical deviations that […]
Y-splitting procedure
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[17] https://www.researchgate.net/figure/Y-splitting-and-transposition-of-the-lateral-rectus-muscle-to-the-medial-rectus-muscle_fig1_256330202
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