Astigmatism occurs when the cornea—the transparent front surface of the eye—has an irregular shape, resembling a football rather than a perfectly round basketball. This uneven curvature causes light ...
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Additionally, the toric lens can treat less than 1 D of astigmatism, the release said. Bausch + Lomb launched the enVista Aspire monofocal and toric IOLs in the European Union. Image: Adobe Stock ...