1. Implantation of asymmetrical corneal intrastromal rings: A case series.
- Author
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Saito, Marina S, Silva, Ana P C, Ribeiro, João M C, Bonfante, Delso, Rodrigues, Pablo F, Moscovici, Bernardo K, Barboza, Guilherme N C, and Barboza, Marcello N C
- Subjects
CORNEAL topography ,CORNEA ,ASTIGMATISM ,KERATOCONUS ,SAMPLE size (Statistics) - Abstract
This case series reports eight eyes with keratoconus treated with laser implantation of one or two segments of progressive thickness corneal intrastromal ring (PT-ICRS). In this case series, it was evident that the insertion of PT-ICRS induces more pronounced corneal flattening at the thickest point, causing a reduction in distortion (coma) and lower astigmatism, resulting in a remarkable improvement in vision. Compared to the implementation of traditional intrastromal rings, the PT-ICRS variant showed superior results despite the small sample size. However, the same degree of asymmetry enhancement was not observed in cases in which a 330° PT-ICRS was implanted, despite the improvement in visual results when replacing a 320° traditional ring with a 330° PT-ICRS. These conclusions are limited as this is a case series with few cases. [ABSTRACT FROM AUTHOR]
- Published
- 2024
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