To compare the safety, efficacy and changes in corneal aberrations between ICL combined with LRI and TICL implantation for moderate astigmatism (1.00-1.75 D).
Approach:
Corneal Aberration Comparison: Corneal aberrations were compared preoperatively and at 3 months postoperatively to assess the impact of each surgical method.
Key Findings:
Both groups showed comparable outcomes in visual acuity and refraction postoperatively.
Surgically Induced Astigmatism (SIA) decreased in the LRI group (1.07 to 0.92, P = 0.044) but remained stable in the TICL group (1.11 to 1.20, P = 0.507).
Total corneal wavefront aberrations, spherical aberration, and horizontal coma reduced in the LRI group, while they slightly increased in the TICL group (all P< 0.05).
Interpretation:
Both ICL combined with LRI and TICL implantation achieve good efficacy in correcting moderate astigmatism, with the LRI group showing reductions in several corneal aberration parameters compared to the TICL group.
Limitations:
The study is retrospective and involves a small sample size.
The follow-up period is limited to 3 months.
Conclusion:
The TICL group showed better postoperative astigmatism stability, while the LRI group demonstrated reductions in corneal aberrations compared to the TICL group.
