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THIS operating phantom was designed for the use of excised animal eyes in teaching or practicing intraocular operations. It eliminates the embarrassing release of eyes from fixation at the most critical moments. Intraocular tension is not at all influenced. The position of the eye can be selected according to need, and fixation can be varied from complete motility to absolute stability by selection of placement of the four fixing sutures and variation of tautness. The phantom consists of a drum, a square of muslin, and a ring provided with two setscrews (Figure, A). The muslin square is stretched on the drum by the aid of the ring, and the two setscrews are lightly tightened to prevent slipping of the muslin (Figure, B).
The globe is sutured onto the muslin by four sutures, using black household cotton thread armed with a ¾-in. (1.9-cm.) round surgical needle (Figure, C). The muslin square