Objective To investigate the accuracy of intraocular lens(IOL)power prediction formulas in patients with short eyes(axial length＜22.00 mm).Design Prospective case series study.Participants 51 patients(56 eyes)with short axial length who under-went phacoemulsification and posterior chamber single-piece monofocal IOL implantation surgery at Xi'an People's Hospital from De-cember 2021 to May 2023.Methods The axial length,corneal curvature,central anterior chamber depth,and lens thickness were mea-sured with IOLMaster700.Postoperative refractive error was predicted using Holladay2,Haigis,and Barrett Universal Ⅱ formulas.The best corrected visual acuity was converted into LogMAR visual acuity for statistical analysis.Subjective optometry examination was per-formed at 3 months postoperatively.The errors in predicting refraction using the Haigis,Holladay 2,and Barrett Universal Ⅱ formulas were compared.Main Outcome Measures Refractive prediction error and absolute prediction error.Results The average central ante-rior chamber depth preoperatively was(2.2±0.2)mm,which significantly increased to(3.8±0.3)mm at 3 months postoperatively(t=25.7,P＜0.001).There were no statistically significant differences in prediction error and absolute prediction error among the three formulas(all P＞0.05).The Haigis formula showed 76.9％of prediction errors distributed within±0.50 D,which was better than the Holladay 2 formula(50.0％within±0.50 D)and the Barrett Universal Ⅱ formula(57.6％within±0.50 D).Conclusion The accuracy of IOL formu-las(Haigis,Holladay 2,Barrett Universal Ⅱ)based on IOLMaster700 is relatively high in patients with short axial length.(Ophthalmol CHN,2024,33:377-381)
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