EVALUATION OF VISUAL QUALITY IN PATIENTS UNDERGOING EXTENDED DEPTH OF FOCUS MULTIFOCAL INTRAOCULAR LENS IMPLANTATION

Thu Thủy Đặng, Hồng Sơn Cung, Thị Hương Lan Trần

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Abstract

Objective: To evaluate the visual quality in patients undergoing implantation of the EDEN extended depth of focus (EDOF) multifocal intraocular lens (IOL). Subjects and methods: The study was designed as a prospective descriptive study on 38 eyes with cataracts that underwent Phaco surgery with the implantation of the EDEN EDOF IOL at Hong Son Eye Hospital from August 2023 to May 2024. Three months postoperatively, contrast sensitivity was tested, patients were interviewed using the VF-14 questionnaire to assess the degree of functional impairment, and visual disturbances were evaluated using a Likert scale. Results: Three months postoperatively, 55.3% of patients were very satisfied, and 44.7% were satisfied with the visual acuity and visual quality of the operated eye. All operated eyes showed significant improvement in visual acuity at all three distances. Specifically, 23 eyes (60.5%) had distance visual acuity >20/25, 12 eyes (31.6%) had visual acuity between 20/40 and 20/30, 3 eyes (7.9%) had visual acuity between 20/200 and 20/50, and no eyes had visual acuity below 20/200. For near and intermediate distances, 86.8% and 92.1% of eyes achieved visual acuity above 20/25, respectively. The improvement in visual acuity was highly significant, with the mean visual acuity decreasing from 1.13 LogMAR to 0.15 LogMAR, a statistically significant difference (p < 0.001). Emmetropia was achieved in 68.4% of eyes, 13.2% had postoperative myopia, and 18.4% had hyperopia. Regarding contrast sensitivity, 64.4% of eyes had normal contrast sensitivity, while 31.6% had reduced contrast sensitivity. Halos and glare symptoms were reported by 68.4% of patients, but these were mild and insignificant, with 31.6% reporting no symptoms and no patients experiencing severe symptoms. The VF-14 questionnaire showed a mean score of 79.7 ± 11.8, indicating that patients had sufficiently good visual acuity to perform most daily activities. Conclusion: The results reflect the quality and effectiveness of Phaco surgery with the implantation of the EDEN EDOF IOL in terms of visual acuity and overall visual quality, leading to high patient satisfaction and meeting patient expectations

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