Internal Limiting Membrane Surgery by Ji Eun Lee & Ik Soo Byon & Sung Who Park

Author:Ji Eun Lee & Ik Soo Byon & Sung Who Park
Language: eng
Format: epub
ISBN: 9789811594038
Publisher: Springer Singapore

In cases of small-extent ILM peeling of 1.5 disc-diameters, the RNFs are arranged opposing vertically at the horizontal raphe in the temporal half, and the contraction forces will offset each other. Whereas, the exposed RNFs are arranged radially in the nasal half, and the foveal depression will be expanded by RNF contraction. Consequently, the foveal tissue will be elongated asymmetrically nasally and superiorly because of the arrangement of the RNFs to the optic disc (Fig. 9.5b), as observed in the previous report [12, 13].

After large-extent ILM peeling (>3 disc-diameters), the RNFs from the horizontal raphe are exposed beyond the vertical midline, and the whole foveal tissue will be displaced by the RNF contraction forces (Fig. 9.5c). Summation of all the vectors of RNF contraction and gravity will results in the foveal displacement to the optic disc and slightly inferiorly (Fig. 9.5d), and these speculations are consistent with the results of the previous studies [18, 19].

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