Eyes of Aniso-Axial Length Individuals Share Generally Similar Corneal Biometrics with Normal Eyes in Cataract Population. (30th October 2020)

• Record Type: Journal Article
• Authors: Zhang, Min; Chen, Tianhui; Deng, Michael; Chen, Jiahui; Jing, Qinghe; Jiang, Yongxiang
• Other Names: Mohamed Noriega Karim Academic Editor.
• Is Part Of: Journal of ophthalmology. Volume 2020(2020)
• Publication Date: 2020-10-30
• Subjects: Ophthalmology -- Periodicals; Eye Diseases; Ophthalmology; Ophthalmology; Electronic journals; Periodicals; Periodicals; Fulltext; Internet Resources; Periodicals; 617.7
• DOI: 10.1155/2020/4760978
• Languages: English
• ISSNs: 2090-004X

Abstract

Abstract : Aims . To determine the characteristics of corneal biometrics in eyes from aniso-axial length cataract patients compared with eyes from non-aniso-axial length individuals. Methods . This is a retrospective case series. Cataract patients with preoperative binocular measurements were recruited. A binocular axial difference of ≥1 mm was considered to indicate aniso-axial length. The anterior segmental biometrics were measured using Pentacam HR (Oculus, Wetzlar, Germany) and IOLMaster 500 (Carl Zeiss Meditec, Jena, Germany). Comparisons of biometrics were made among 4 eye conditions: the longer eyes from aniso-axial length patients, the shorter eyes from aniso-axial length patients, the longer eyes from non-aniso-axial length patients, and the shorter eyes from non-aniso-axial length patients. The aniso-axial length eyes were also stratified into 8 subgroups with axial length (AL) increments of 1 mm, and the biometrics of the subgroups were compared. Results . There was smaller anterior corneal astigmatism in the shorter aniso-axial length group than those in the longer aniso-axial length group (1.01 ± 0.70 D vs 1.12 ± 0.76 D, P = 0.031 ). The longer aniso-axial length eyes had greater anterior corneal steep curvature (44.13 ± 1.69 D vs 43.87 ± 1.69 D, P = 0.009 ) and anterior corneal astigmatism (1.12 ± 0.76 D vs 1.02 ± 0.69 D, P = 0.023 ) compared with longer non-aniso-axial length subjects. Other corneal biometrics were similar between the aniso-axial length eyes and the non-aniso-axial length eyes. In the longer aniso-axial length group, the posterior corneal aberrations of eyes in the ≥5 mm subgroups were greater than those in the <5 mm subgroups (0.879 ± 0.183 μ m vs 0.768 ± 0.178 μ m for total aberrations, P < 0.001 ; 0.228 ± 0.086 μ m vs 0.196 ± 0.043 μ m for high-order aberrations, P = 0.036 ; 0.847 ± 0.173 μ m vs 0.741 ± 0.179 μ m for low-order aberrations, P = 0.001 ). Conclusion . Eyes of aniso-axial length individuals share generally similar corneal biometrics with normal eyes in cataract population. Anterior corneal astigmatism of the longer eyes from the aniso-axial length cataract patients was higher than that of the longer eyes from the non-aniso-axial length individuals. Total posterior corneal aberrations of the longer aniso-axial length eyes increased when the binocular axial difference was over 5 mm.