关键词: 白内障, 角膜散光, 双焦点散光人工晶状体

Abstract: Objective To observe the refractive correction effect of bifocal Toric IOL implantation on cataract patients with low-degree of corneal astigmatism. Design Retrospective case series. Participants Forty cataract patients with low-degree corneal astigmatism (0.75~1.25 D) were enrolled. Twenty patients underwent phacoemulsification combined with bifocal Toric IOL implantation (Toric group), and 20 patients underwent phacoemulsification combined with bifocal IOL implantation (control group). Methods The patients' medical records were reviewed, and the uncorrected distance visual acuity (UDVA) , the best corrected far vision acuity (BCVA) , the uncorrected near visual acuity (UNVA), and the best corrected near vision (BCNV), astigmatism, and visual quality of life score were recorded and compared between the two groups. Main Outcome Measures UDVA, BCVA, UNVA, BCNV, astigmatism and visual quality of life score. Results UDVA and UNVA in Toric group were better than those in control group (all P<0.05). There was no significant difference in BCVA and BCNV between the two groups (all P>0.05). There was no significant difference in astigmatism between the two groups before surgery (P>0.05). At 3 months after surgery, the mean astigmatism was (0.31±0.12) D in the Toric group and (0.83±0.28) D in the control group (t=-7.634，P<0.001). The total score of subjective visual quality questionnaire (QoV) was good in both groups, and the total score of the Toric group (88.12±0.142) was better than that of the control group (81.77±1.15) (t=15.558, P<0.001). The light interference score of Toric group (23.7±0.97) was significantly better than that of control group (18.09±0.52) (t=22.756, P<0.001). There was no significant difference in medium and near distance living ability between the two groups. But the night driving ability score of the Toric group (4.15±0.16) was significantly better than that of the control group (2.26±0.22)(t=31.168, P<0.001). Conclusion Bifocal Toric IOL implantation can improve corneal astigmatism, uncorrected distance and near visual acuity, reduce the optical interference of bifocal IOL, and improve the visual quality after cataract surgery. (Ophthalmol CHN, 2025, 34: 49-53)

Key words: cataract, corneal astigmatism, bifocal Toric intraocular lens