KHẢO SÁT ẢNH HƯỞNG QUANG SAI NHÃN CẦU LÊN KẾT QUẢ THỊ GIÁC TRÊN BỆNH NHÂN PHẪU THUẬT THỂ THỦY TINH NHÂN TẠO BA TIÊU

Abstract

Purpose: To present the use wavefront aberrometry postoperatively for the assessment of visual quality in cataract operation with Trifocal IOLs and indicate the right and the best fit multifocal IOLs for our patients. Methods: The study evaluated the objective and subjective visual outcomes achieved after implantation of the At lisa Tri IOL (Zeiss) in a 60 eyes, visual acuity, spherical equivalent and ocular aberration with the OPD Scan III (Nidek) that obtain the modulation transfer function (MTF), pupilometers under photopic and mesopic conditions and the point spread function (PSF), which was expressed as the Strehl ratio. Correlations between the mentioned parameters and other visual quality parameters were determined. The correlations were evaluated using Spearman’s correlation analysis. Statistical analyses: SPSS software. Differences were considered statistically significant for p<0.05. Results: Value for spherical aberrations was -0.02 (-0.004 to + 0.30). The mean photopic, mesopic pupils were 3.12mm (SD 0.5) and 4.33mm (SD 0.7) respectively. The rate of satisfaction in their regular activity was 87% and without glasses was 83%. Aberrometry-OPD III results were MTF area total 62.15 (µm), MTF wavefront RMS 0.46 (µm) and Strehl ratio 0.14 (µm). The correlation between Strehl ratio and mesopic pupils were signicficant with p < 0.05. And 89% of the achieved an uncorrected near acuity of 20/25 or better (J1 and J2); 11% of 20/40 (J3). Conclusion: This prospective interventional case series evaluating the visual performance of the trifocal IOL in cataract surgery patients showed the ATlisa Tri to be safe and effective with a high level of satisfaction. OPD scan III is a useful device in analysis optical quality and ocular aberration.