Journal of Otolaryngology and Ophthalmology of Shandong University ›› 2025, Vol. 39 ›› Issue (6): 108-112.doi: 10.6040/j.issn.1673-3770.0.2024.040

• Original Article • Previous Articles    

Long-term rotation stability and visual quality of Toric intraocular lens implantation with steep-axis clear corneal incision

HAO Wenna1,2, MENG Wei1,2, SHAO Zhen2,3, LIU Dongmei2,3   

  1. 1. Shandong University of Traditional Chinese Medicine, Jinan 250014, Shandong, China2. Shandong Provincial Clinical Research Center of Ophthalmology and Children Visual Impairment Prevention and Control, Jinan 250002, Shandong, China3. Affiliated Eye Hospital of Shandong University of Traditional Chinese Medicine, Shandong Academy of Eye disease Prevention and Therapy, Jinan 250002, Shandong, China
  • Published:2025-11-19

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Abstract: Objective To investigate the long-term rotation stability and visual quality of Toric intraocular lens implantation with steep-axis clear corneal incision. Methods A retrospective analysis was conducted on 111 cases(111 eyes)of cataract surgery performed at the affiliated Ophthalmology Hospital of Shandong University of Traditional Chinese Medicine, spanning from January 1, 2018, to March 21, 2022. All patients underwent transparent corneal incision in the steep axis position, along with phacoemulsification of cataracts and implantation of Toric IOL. The visual quality of the patients was evaluated through preoperative visual acuity, recent follow-up visual acuity, postoperative comprehensive refraction, and OPD-Scan III examinations. The study aimed to compare the axial changes of Toric IOL in the conforming, non-conforming, and oblique axis directions of steep-axis transparent corneal incision implantation groups at 12-24 months, 24-36 months, and 36-48 months postoperatively. Data analysis was performed using one-way analysis of variance and paired sample t-test methods. Results In 11 eyes, the mean uncorrected visual acuity(UCVA)after surgery(0.13±0.21)LogMAR was significantly higher than before(0.90±0.71)LogMAR(P<0.001). The mean best corrected visual acuity(BCVA)after surgery(0.06±0.14)LogMAR was significantly higher than before(0.70±0.70 LogMAR)(P<0.001). The Strehl ratio(SR value)of the Point spread function(PSF)after surgery(0.06±0.04)was higher than before(0.01±0.01)(P<0.001). In the modulation transfer function(MTF)curve, the Area ratio(AR)of 4mm increased after surgery(0.31±0.11)compared with that before surgery(0.15±0.06)(P<0.001). The average rotation Angle of Toric IOL was(2.78±2.50)°. The rotation angles of Toric IOL implanted with steep axis clear corneal incision in the with the rule, against the rule and oblique direction after surgery and at different time points after surgery were analyzed. The WTR astigmatism was(2.90±2.43)°, the ATR astigmatism was(2.69±2.66)°, and the oblique astigmatism was(2.83±2.23)°. There was no significant difference among the three groups(P=0.932). The postoperative rotation angles were(2.72±2.11)° at 12-24 months,(2.81±2.54)° at 24-36 months, and(2.81±2.78)° at 36-48 months. There was no significant difference among the three groups(P=0.985). Conclusion Acrysof IQ Toric implantation has a good rotation stability in the capsule. The rotation angle of Acrysof IQ Toric implantation is not related to implantation through steep-axial clear corneal incision in the direction of with the rule, against the rule or oblique axis, and has no relationship with different follow-up periods. Acrysof IQ Toric implantation can effectively correct corneal astigmatism and provide good visual quality.

Key words: Toric IOL, rotational stability, steep-axial clear corneal incision

CLC Number: 

  • R776.1
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