Presbyopic LASIK Using Hybrid Bi-Aspheric Micro-Monovision Ablation Profile for Presbyopic Corneal Treatments

Abstract

CONCLUSIONS: Presbyopic treatment using a hybrid bi-aspheric micro-monovision ablation profile is safe and efficacious. The post-operative outcomes indicate improvements in binocular vision at far, intermediate and near distances with improved contrast sensitivity. A 19% retreatment rate should be considered to increase satisfaction levels, besides a 3% reversal rate.3

Changes to Corneal Aberrations and Vision After Monovision in Patients With Hyperopia After Using a Customized Aspheric Ablation Profile to Increase Corneal Asphericity (Q-factor)

“…Our outcomes for UDVA, UNVA, and CDVA loss of two or more lines and re-treatment percentage were similar to recent published studies using presbyopic LASIK with central multifocal ablation profiles in hyperopic patients. 2,4,5,[23][24][25][26][27][28] The proportion of patients achieving 20/20 or better binocular UDVA varied from 36.6% to 93% in the study from Reinstein et al 4 (vs 91% in our study). The proportion of patients achieving Jaeger 3 (Parinaud 4) or better binocular UNVA varied from 60% to 100% in the study by Jackson et al 2 (vs 93% in our study).…”

“…The excimer laser ablation profile was not adapted to the preoperative pupil diameter dynamics. Patients should be required to have pupil diameters larger than 3 mm in photopic conditions (for effectively using the near central corneal zone) and larger than 4.5 mm in mesopic conditions (for effectively using the pericentral intermediate and distant corneal zone), as proposed by Luger et al 5 For smaller pupils, the abla-tion zone should theoretically be reduced to obtain an effective multifocality within the entrance pupil area. Our mathematical model 16 used an optical zone of 6 mm.…”

“…Clinical outcomes using different techniques of presbyopic LASIK were reported and summarized in several recent studies. 3,5,29,30 The current development throughout the corneal surgical compensation for presbyopia in hyperopic patients indicates a converging trend toward hybrid techniques. Strategies involve a combination of different optical principles, including monovision, multifocality, asphericity modification, and pinhole, to improve visual outcomes.…”

Long‐term corneal multifocal stability following a presbyLASIK technique analysed by a light propagation algorithm

“…As a consequence, it is possible to conclude that the results achieved with the central presbyLASIK technique PresbyMax, are stable for a three‐year follow‐up period post‐surgery. In this way, this study complements other previous reports, in which good clinical results with the technique were reported both in myopes and hyperopes.…”

A symmetric hypocorrection of myopia by FemtoLASIK in patients with presbyopia

“…Современные методы моновизуальной коррекции: Custom Vue monovision, высокоавтоматизированная процедура, обеспечивающая более точную коррекцию, точную центровку и уменьшение аберраций, в частности на недоминантном глазу; LASER Blended Vision -создает специальный профиль абляции, улучшающий глубину фокуса как на доминантном, так и на недоминантном глазу, что улучшает качество зрения для дали, для средних расстояний и для близи; PresbyMAX ® μ-Monovisionбиасферическая абляция с использованием программного обеспечения PresbyMAX ® μ-Monovision с аддидацией от +1,75 до +2,25 дптр [11][12][13][14][15].…”