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Mariana Ramírez Mejía,1 Leticia Arroyo Muñoz,1 Ana Beatriz Medina Perez,1 Cristina Mendoza Velasquez,1 Jimena Ceja Martínez,1 Azyadeh Camacho Ordonez,1 Oscar Guerrero-Berger1,2 1Department of Anterior Segment Surgery, Fundación Hospital Nuestra Señora de la Luz, Mexico City, Mexico; 2Centro Oftalmológico Mira, Mexico City, MéxicoCorrespondence: Oscar Guerrero-Berger, Department of Anterior Segment Surgery, Fundación Hospital Nuestra Señora de la Luz, Ezequiel Montes 135, Tabacalera, Cuauhtémoc, Mexico City, 06030, Mexico, Tel +525551281140, Email droscarguerrero@gmail.comPurpose: To comparemagnification and refocusing during phacoemulsification with the NGENUITY® 3-D Visualization System (3-D) versus the conventional microscope (CM) OPMI LUMERA 700.Setting: This study was performed in the Department of Anterior Segment of the Fundación Hospital Nuestra Señora de la Luz.Design: Prospective, randomized, cross-sectional, multi-surgeon, and comparative study.Methods: This study enrolled 100 patients (eyes) scheduled for phacoemulsification to measure the number of times changes in focusing and magnification were needed during cataract surgery.Results: Our study included 100 patients. From the endpoints evaluated, “zoom-in” showed statistically significant differences for all of the four predefined cataract surgery steps (means: Step 1, 0.38 (CM) vs 0.08 (3-D); Step 2, 0.36 (CM) vs 0.06 (3-D); Step 3, 0.54 (CM) vs 0.22 (3-D); Step 4, 0.56 (CM) vs 0.24 (3-D); all comparisons, p < 0.05). In Step 4, there was a statistically significant increased use of “focus-out” for the 3-D system (mean 0.16 (CM) vs 0.58 (3-D); p < 0.05). “Focus-in” and “zoom-out” showed no group differences for all steps. The duration of surgery with the 3-D system was longer at each step and overall. The percentage of light intensity did not show a statistically significant difference between both systems, with a mean of 99.45 for CM vs 98.43% for the heads-up system.Conclusion: The heads-up 3-D system is a safe option that offers excellent ... |
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