Refractive and Quality of Vision Outcomes with Toric IOL Implantation in Low Astigmatism

Abstract

Purpose. To evaluate the refractive and the quality of vision outcomes of toric IOL implantation in patients with low astigmatism. Design. Prospective study of single-arm. Methods. Patients with corneal astigmatism range from 0,75 D to 1,5 D and cataract that underwent cataract surgery with toric IOL. The measurements were performed preoperatively and 6 weeks after the surgery. Patients were evaluated for visual acuity with and without correction, contrast sensitivity, static and dynamic refraction, and quality of life questionnaire. Pre- and postoperative values were compared and their variations were evaluated for linear correlation. Results. 21 eyes of 21 patients. Postoperative mean uncorrected visual acuity was 0.80 ± 0.19, and the best corrected visual acuity was 0.97 ± 0.15. p < 0.001 compared to preoperative values. The average postoperative refractive cylinder was −0.34 ± 0.39. The questionnaire's total value before and after surgery was, respectively, 43.20 ± 15.76 and 79.70 ± 10.11 (p < 0.001). The correlation coefficients between the values of the questionnaire variation and the UCVA, BCVA, and CS variation were, respectively, 0.548 (p = 0.005), 0.508 (p = 0.009), and 0.409 (p = 0.033). Conclusion. Patients with low astigmatism who underwent phacoemulsification with toric IOL implantation experienced significant decrease in refractive astigmatism and improvement in their quality of life.

Comparison of the clinical efficacy of AcrySof^&reg; IQ and TECNIS^&reg; toric intraocular lenses: A real‑world study

“…The majority of patients achieved highly significant UDVA and CDVA improvement. The current results are consistent with those previously reported for a number of toric IOLs, including Bi-Flex T, AcrySof, Rayner T-Flex ® and TECNIS ( 1 , 4 , 9 , 18 ). There was no difference between the two groups in postoperative residual astigmatism.…”

“…With the improved quality of life, cataract surgery has developed from a procedure for removing the cloudy lens safely so patients can acquire freedom from glasses and gain excellent uncorrected visual acuity ( 7 , 8 ). When patients undergo cataract surgery, implantation of toric IOL is deemed the most effective choice for correcting corneal astigmatism and reducing postoperative spectacle dependence ( 9 ). Nonetheless, fluctuating or inaccurate preoperative keratometry ( 10 ), undervaluation of the total astigmatism in IOL power calculations ( 11-13 ), unexpected surgically induced astigmatism ( 14 ), errors of IOL axis position ( 15 ), or IOL instability ( 16 ) could decrease the curative effect of toric IOL.…”

Risk factors for refractive error after cataract surgery: Analysis of 282 811 cataract extractions reported to the European Registry of Quality Outcomes for cataract and refractive surgery

“…It has been reported that eyes with a preoperative corneal astigmatism between 0.75D and 1.5D could benefit from a toric IOL. 9 A large number of risk factors was identified in our study. Poor preoperative visual acuity is one such risk factor probably because the patient's inability to fixate properly during biometry measurement.…”

Clinical differences between toric intraocular lens (IOL) and monofocal intraocular lens (IOL) implantation when myopia is determined as target refraction

“…Therefore, implantation of a toric IOL is strongly recommended for patients with both cataract and corneal astigmatism [19] [20]. However, myopic patients who determined to nearsighted target such as -3D have to wear spectacle as usual after surgery, so the remaining astigmatism can be corrected by spectacle.…”