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Zonal photorefractive keratectomy for presbyopia
P Vinciguerra1, G M Nizzola, F Nizzola
1Divisione di Oculistica, Ospedale San Gerardo di Monza, (MI), Italy.
Summary
Zonal excimer laser photorefractive keratectomy using a novel mask shows promising results for presbyopia correction. Patients achieved functional reading vision, with stable outcomes over 36 months.
Area of Science:
- Ophthalmology
- Refractive Surgery
Background:
- Presbyopia, the age-related loss of accommodation, affects near vision.
- Current treatments for presbyopia include reading glasses, multifocal contact lenses, and refractive surgery.
Purpose of the Study:
- To evaluate the efficacy of zonal excimer laser photorefractive keratectomy for presbyopia correction.
- To assess the visual and refractive outcomes of a specially designed presbyopia mask.
Main Methods:
- Three presbyopic patients underwent zonal excimer laser photorefractive keratectomy using a custom-designed mask.
- The procedure aimed for a 3.00 D presbyopic correction.
- Follow-up extended to a minimum of 24 months.
Main Results:
- A stable presbyopic correction of at least J3 was achieved at normal reading distance without correction.
- Initial regression of 1.00 D was observed, followed by stable refractive outcomes.
- Patients retained the ability to read with their preoperative correction due to a small ablated zone.
Conclusions:
- Zonal excimer laser photorefractive keratectomy with the described mask demonstrates promising visual and refractive outcomes for presbyopia.
- The technique offers a potential alternative for presbyopia correction with a favorable safety profile.