Postoperative assessment of monocular multifocal bi-aspheric ablation pattern for correcting myopia with presbyopia

Abstract Purpose : This study aimed to evaluate the vision performance of the monocular multifocal bi-aspheric ablation pattern (PresbyMAX® monocular mode) for correcting myopia and presbyopia. Methods: Consecutive case series, a total of 22 consecutive patients (10 males and 12 females) who underwent multifocal bi-aspheric ablation in the non-dominant eye(Near vision Eye, NE) and mono-focal regular FS-LASIK in the dominant eye(Distance vision Eye, DE) for correction of myopia and presbyopia were reviewed for 6 months. Visual acuity assessments, encompassing uncorrected distance (UDVA), intermediate (UIVA), near (UNVA), and distance corrected near visual acuity (DCNVA), were conducted preoperatively and at 1 day, 1 week, 1 month, 3 months, and 6 months postoperatively. Additionally, the patients' primary complaints, contrast sensitivity (CS), defocus curves, and subjective questionnaires were also assessed. Results: Binocular UDVA (BUDVA) averaged -0.02±0.06 logMAR, binocular UIVA (BUIVA) and binocular UNVA(BUNVA) at -0.07±0.05 logRAD and -0.05±0.06 logRAD, respectively. All patients achieved BUDVA of 0.1 logMAR or better, BUIVA of 0 logRAD or better, and BUNVA of 0.1 logRAD or better, along with improved subjective ratings.CS exhibited no significant changes. Defocus curves indicated satisfactory visual acuity, with visual acuity surpassing 0.3logMAR for both eyes within the range of +1.5D to -3.0D. Common reported issues included blurred vision, glare, and dry eye symptoms. Overall, patient satisfaction was reported at 100%, with 95% of individuals achieving independence from spectacles. Conclusions: The PresbyMAX monocular ablation mode is safe and effective for myopic patients with presbyopia, leading to high levels of patient satisfaction.