Sharifi Ali, Dehghani-Meibodi Davoud, Zand Amin
Clinical Research Development Unit, Shafa Hospital, Kerman University of Medical Sciences, Kerman, Iran.
J Ophthalmic Vis Res. 2025 Sep 2;20. doi: 10.18502/jovr.v20.15132. eCollection 2025.
To evaluate the time required for refractive error (RE) stabilization after standard phacoemulsification cataract surgery and identify preoperative factors influencing this duration.
This prospective case series study enrolled patients who had undergone phacoemulsification cataract surgery. RE stabilization was defined as 0.50 diopter changes in spherical equivalent (SE) over two consecutive follow-ups. Participants underwent ophthalmic examinations at baseline and postoperative days 3, 7, 14, 28, and 60. Keratometric values (K-mean), corneal astigmatism, and axial length (AL) were measured preoperatively using a biometric device.
A total of 163 eyes from 163 patients were included. RE stabilization occurred by day 28 in 98.8% of eyes, reaching 100% by day 60. Multivariate analysis revealed that age, gender, type of cataract (nuclear, cortical, or posterior subcapsular), best-corrected visual acuity, absolute SE, and K-mean did not significantly influence the time to RE stabilization (s 0.05). AL demonstrated a significant negative association with the time to RE stabilization (ß = -0.445, 0.001). Moreover, eyes with lower preoperative corneal astigmatism exhibited a shorter time to RE stabilization (ß = 1.001, 0.001).
RE stabilization is typically observed 4 weeks post-cataract surgery. Eyes with lower AL and higher corneal astigmatism exhibit a comparatively slower RE stabilization following surgery.
评估标准超声乳化白内障手术后屈光不正（RE）稳定所需的时间，并确定影响该持续时间的术前因素。
这项前瞻性病例系列研究纳入了接受超声乳化白内障手术的患者。RE稳定定义为连续两次随访中球镜当量（SE）变化不超过0.50屈光度。参与者在基线以及术后第3天、第7天、第14天、第28天和第60天接受眼科检查。术前使用生物测量设备测量角膜曲率值（平均K值）、角膜散光和眼轴长度（AL）。
共纳入163例患者的163只眼。98.8%的眼在第28天实现RE稳定，到第60天时达到100%。多因素分析显示，年龄、性别、白内障类型（核性、皮质性或后囊下）、最佳矫正视力、绝对SE和平均K值对RE稳定时间无显著影响（P>0.05）。AL与RE稳定时间呈显著负相关（β=-0.445，P<0.001）。此外，术前角膜散光较低的眼RE稳定时间较短（β=1.001，P<0.001）。
白内障手术后通常在4周时观察到RE稳定。AL较短和角膜散光较高的眼术后RE稳定相对较慢。
