What question did this study set out to answer?

Evaluate visual outcomes and lens selection criteria between rigid gas-permeable and mini-scleral lenses in keratoconus.

Comparison of visual acuity outcomes and topographic differences: Rigid gas-permeable lens versus mini-scleral lenses for moderate-to-severe keratoconus

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Retrospective analysis shows visual improvement using mini-scleral lenses in patients with keratoconus, suggesting lens selection factors.

Evaluate visual outcomes and lens selection criteria between rigid gas-permeable and mini-scleral lenses in keratoconus.
Retrospective study of 36 eyes from 28 patients with moderate-to-severe keratoconus.
Comparison of visual acuity and topographic indices for RGP and MScL lenses.
Statistical analyses included multivariate logistic regression and ROC curve analyses.
Both lens types improved best-corrected visual acuity significantly.
RGP lenses had lower irregular astigmatism index and cone-to-center distance compared to MScLs.
Higher irregular astigmatism index predicted suitability for MScLs, while higher center-surround index favored RGP lenses.

Chang et al. (2025) studied this question.

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Retrospective analysis shows visual improvement using mini-scleral lenses in patients with keratoconus, suggesting lens selection factors.