Abstract

Purpose: Is to describe an efficient and safe device Trishool the wedge tool designed with the principle of classical simple machine to crack and break the mature hard cataract. Methods: We incorporated triangular wedge design into the tip of the terminator in which pointed apex of wedge is kept at the inner edge of the tip while wide and flat base of wedge is placed at the posterior surface of the tip Results: We found that TRISHOOL the wedge tool was highly efficient, safe and simple to crack and break these hard nuclei into multiple free segments. Full thickness cracking was possible in 99.1% of cases. 0.9 % of cases nucleus was removed in total with ECCE technique. Conclusion: Wedges have been successfully used in rock excavation system since the ancient time to crack and break solid hard rocks. We found that trishool the wedge tool was highly efficient, safe and simple to crack and break these hard nuclei into multiple free segments.

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