Two-Year Outcomes Of Presbymax Modified Biaspheric Excimer Laser Ablation Profile For The Correction Of Presbyopia
Published 2025 - 43rd Congress of the ESCRS
Reference: FP06.01 | Type: Free paper | DOI: 10.82333/dkp6-1c15
Authors: Alice Ditchfield* 1 , Mana Rahimzadeh 1 , Bita Manzouri 1
1Ophthalmology,Queen's Hospital,Romford,United Kingdom
Purpose
To assess the efficacy, safety and quality of vision after application of PresbyMAX monocular modified biaspheric excimer laser ablation profile for the treatment of presbyopia.
Setting
Single surgeon, private practice, London, UK
Methods
A retrospective study of 56 consecutive patients (112 eyes) undergoing FemtoLASIK for presbyopia was performed. Patients were treated to correct distance ametropias and presbyopic symptoms simultaneously. In all cases, the dominant eye was targeted for emmetropia with an aberration-free wavefront optimised ablation profile. The non-dominant eye was treated to target -1.19 Diopters of Myopia with a monocular modified biaspheric PresbyMAX addition of +1.50 Diopters adjusted for by refraction. Corrected and uncorrected distance and near visual acuity, refraction and quality of vision were assessed. Patients were followed up at one day, week one, 6 weeks and 3 months, 6 months, 1 year and 2 years.
Results
26 myopic and 30 hypermetropic patients with a mean age of 53.6 years were identified. All patients achieved binocular uncorrected distance visual acuity (BUDVA) of 0.20 LogMAR or better, with 96.4% achieving BUDVA of 0.00 LogMAR or better. Mean BUDVA was -0.07 (SD 0.08) LogMAR. All patients achieved binocular uncorrected near visual acuity (BUNVA) of 0.4 LogMAR or better, with 86.1% achieving BUNVA of 0.2 LogMAR or better. Mean BUNVA was 0.16 (SD 0.13) LogMAR. All patients achieved satisfactory neuroadaptation within 6 weeks and no dysphotopsia. 5 eyes (4.5%) required an enhancement.
Conclusions
This modification of a biaspheric ablation profile for presbyopia successfully achieves the appropriate balance between quality of vision and spectacle independence in presbyopic patients, with an excellent safety profile. Previous versions of this biaspehric profile have seen reports of reduced quality of vision and reduction in UDVA. The results of this study support more widespread adoption of a lower PresbyMAX addition and greater myopic target in the non-dominant eye to optimise patient satisfaction.