Characteristics of corneal aberration in patients with bilateral keratoconus and unilateral corneal Vogt’s striae  

作　　者：Sheng-Sheng Wei Yong Li Zhi-Qing Wu Jian-Guo Liu Jing Du Jing Li Yao-Hua Zhang 

机构地区：[1]Shaanxi Eye Hospital,Xi’an People’s Hospital(Xi’an Fourth Hospital),Affiliated People’s Hospital of Northwest University,Xi’an 710004,Shaanxi Province,China [2]Department of Ophthalmology,Hospital of Shaanxi Normal University,Xi’an 710004,Shaanxi Province,China

出　　处：《International Journal of Ophthalmology(English edition)》2024年第12期2316-2320,共5页国际眼科杂志（英文版）

基　　金：Supported by Xi’an Health Committee Research Projects(No.2023yb14);Shaanxi Province Natural Science Basic Research Project(No.2024JC-YBMS-623);Shaanxi Province Science and Technology Plan Project(No.2024SFYBXM-331).

摘　　要：AIM:To assess the corneal high-order aberration(HOA)and its correlation with corneal morphological parameters in patients with bilateral keratoconus(KCN)and unilateral Vogt’s striae.METHODS:A total of 168 eyes of 84 patients with KCN,whose corneas had definite signs of unilateral Vogt’s striae,were enrolled.Corneal HOA and morphological parameters were measured using Pentacam HR.RESULTS:The corneal morphological parameters between KCN eyes with and without Vogt’s striae were evidently different(P<0.001).The 3rd coma 90°,4th spherical aberration,5th coma 90°,root-mean-square(RMS)(total),and RMS(HOA)in the front,back surfaces and total cornea in KCN eyes with Vogt’s striae were significantly higher than those in KCN eyes without Vogt’s striae(P<0.001).In KCN eyes with Vogt’s striae,the 3rd coma 90°and 4th spherical aberration in the front surface and total cornea were negatively correlated with flat keratometry value(K1),steep keratometry value(K2),mean keratometry value(Km),maximum keratometry value(Kmax),anterior corneal elevation(ACE),and posterior corneal elevation(PCE;P<0.05).The 3rd coma 90°,4th spherical aberration in back surface and RMS(total),RMS(HOA)in the front,back surfaces,total cornea were positively correlated with K1,K2,Km,Kmax,ACE,and PCE(P<0.05).CONCLUSION:Corneal HOA especially vertical coma and spherical aberration may increase when Vogt’s striae appeared in KCN eyes.The scale of increase is significantly related with changes in corneal shapes.

关 键 词：KERATOCONUS CORNEA corneal aberration corneal morphological Vogt’s striae 

分 类 号：R772.2[医药卫生—眼科]