Differences in anterior chamber depth in keratoconus patients with binocular very asymmetry ectasia

• Published in: BMC ophthalmology 2024-02, Vol.24 (1), p.87-87, Article 87
• Main Authors: Wang, Zizhen, Ma, Haowen, Zhang, Yu, Yuan, Yifei, Liu, Yan, Chen, Yueguo
• Format: Article
• Language: English
• Subjects: Anterior Chamber; Anterior chamber depth; Astigmatism; Asymmetry; Cornea; Corneal magnification effect; Corneal Pachymetry; Corneal Topography; Corneal transplantation; Dilatation, Pathologic; Eye surgery; Humans; Intraocular lenses; Keratoconus; Keratoconus - complications; Keratoconus - diagnosis; Morphology; Myopia; Symmetry; Tomography; Topography; Very asymmetry ectasia; Visual acuity
• ISSN: 1471-2415; 1471-2415
• DOI: 10.1186/s12886-024-03353-5

To evaluate the difference in anterior chamber depth (ACD) between two eyes among keratoconus patients with binocular very asymmetric ectasia (VAE) and to explore the influencing factors. The corneal curvature and ACD in both eyes of patients with VAE were measured by Sirius (version 3.2, CSO, Italy) at the following points: corneal vertex, maximum curvature (apex), and the 1.5 mm, 2.5 mm, and 3.5 mm superior-, inferior-, nasal-, temporal-paracentral from center. The mean pupil power (MPP) and corneal morphology parameters were also measured. Correlations between ACD and curvature and morphology parameters were analyzed by linear regression. 172 eyes of 86 patients (9 to 45 years) were classified into the VAE-N (n = 86) group and the VAE-E group (n = 86) based on the corneal morphology. The central (3.32 ± 0.27 mm versus 3.43 ± 0.29 mm, P