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We observed circular furrow-like patterns on the implanted intraocular lens surface in postoperative follow-up examination by specular microscopy. The patterns may have been deep lathe-cut marks or compression-related marks on the optics. Specular microscopy, polarized light microscopy, and scanning electron microscopy detected a similar circular mark on the optic surface of a control intraocular lens of the same model. A reconsideration of surface quality is indicated.
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Ohara et al. (1989) studied this question.
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