Effect of corneal diameter on preoperative screening results for corneal refractive surgery

• Published in: American journal of translational research 2024-01, Vol.16 (7), p.3072-3080
• Main Authors: Zhang, Lina, Liu, Qinglin, Shao, Hui, Ni, Lisha, Wang, Kai, Ma, Liwei, Huang, Wu
• Format: Article
• Language: English
• Subjects: Original
• ISSN: 1943-8141; 1943-8141
• DOI: 10.62347/OZEN2943

To investigate the impact of different corneal diameters on corneal morphology and biomechanical outcome during preoperative screening for corneal refractive surgery. A retrospective analysis was conducted on 300 patients who underwent corneal refractive surgery at Eye and ENT Hospital, Fudan University between October 2023 and December 2023. All patients had no history of keratoconus or previous corneal surgery. Patients were categorized into two groups based on corneal topography measurements: (1) normal corneal diameter group (n=159), those with corneal diameter ranging from 11.5 mm to 12.0 mm; (2) abnormal corneal diameter group (n=141), those with corneal diameter smaller than 10.0 mm or larger than 12.5 mm. Corneal thickness, morphologic data, and biomechanical data were measured using Pentacam corneal topography. Correlation analysis was conducted to explore the relationship between corneal diameter and various corneal topography and biomechanical data. Significant differences were observed in corneal topography data including BFSf (F=43.21), BFSb (F=30.24), Df (F=15.32), Dp (F=32.36), Da (F=9.66), D (F=58.36), PPIavg (F=32.64), and ARTmax (F=12.06) between the groups (P