Clinical study on visual outcomes with four different intraocular lens following cataract surgery

Abstract

Objectives: The aim of this study was to evaluate and compare the visual acuity and refractive outcomes of four commonly used posterior chamber intraocular lens (IOL) brands implanted during routine cataract surgery. All the lenses were monofocal, hydrophobic acrylic but belonged to a variable price range. Material and Methods: This was a retrospective study of cataract surgery patients who underwent phacoemulsification with four different types of IOL. The IOLs studied were Tecnis Eyhance ICB00 (Group A), AcrySof IQ SN60WF (Group B), Hoya iSert 150 (Group C), and S lens (Group D); 35 eyes in each group. The parameters studied were uncorrected distance visual acuity (UCVA), best-corrected visual acuity (BCVA), and manifest refraction on post-operative days (POD) 1, 7, and 30. Results: On average, 97.14% of patients attained BCVA of 6/12 or better at the final follow-up; 83.57% of patients attained UCVA of 6/6–6/12 at the final follow-up. The highest percentage of patients achieving good UCVA (6/6– 6/12) was seen with AcrySof IQ (94.28%), followed by S-Lens (88.57%), Hoya iSert 150 (82.85%), and Eyhance (68.57%). In POD 1, log MAR UCVA in the four groups did not show any difference (P = 0.42). In POD 7, Group B (AcrySof IQ) had statistically significantly better UCVA as compared to the other three groups (P = 0.04). In POD 30, the UCVA in Groups B, C, and D were comparable, which was better than Group A (Eyhance) (P = 0.01). The spherical equivalent required to achieve BCVA was lowest in Group B (0.15 ± 0.24) and highest in Group A (0.30 ± 0.28) (P = 0.13). Conclusion: All four IOLs produced comparable post-operative visual acuity and refractive outcomes. Surgeons can confidently select more affordable monofocal IOLs without compromising the quality of care, considering both the percentage of patients achieving the optimal vision and the consistency of the outcomes across different lens types.