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First Author: I.Novak RUSSIA
Co Author(s): S. Anisimova S. Anisimov S. Semyonov V. Sivtseva
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Supracor is a new modern multifocal LASIK-based method of presbyopia correction which helps to achieve results when uncorrected vision acuity after the surgery is better than corrected vision acuity before the operation. The purpose of our work was to study the long-term results of Supracor, its safety and effectiveness on patients with presbyopia combined with hyperopia of different degrees.
Eye center ḋEast Sight recoveryṠ
Supracor was performed on 42 eyes of 21 patients 47 to 62 years of age. In all cases presbyopia was combined with hyperopia of different degrees. Before operation all patients wore glasses for near distances (40 sm) in 100% of cases, for intermediate distances (up 70 sm) in 80%. For far distances (3-5 m) 70 % of patients wore glasses permanently and 10% - occasionally. In all cases besides standart ophthalmology examination, corneal topography and pachimetry was performed on Zyoptix working station (Technolas PV). Surgical treatment was performed on excimer laser Technolas 217Z. Long-term observation period was 3 months- 2 years.
The main parameters to evaluate were patients ability to refuse from distance and reading glasses. 1 day after the surgery uncorrected distance vision acuity (UCDVA) was 0,8 ±0,2; uncorrected near vision acuity (UCNVA) was 0,6 ±0,2. UCDVA and UCNVA were 0,9 ±0,1 and 0,7 ±0,15 respectively at 6 months after operation; 0,8 ±0,2 and 0,55 ±0,15 respectively at 1 year after operation. Only 4 patients reached 2 years of observation period and their UCDVA and UCNVA were 0,9 ±0,1 and 0,55 ±0,15. The vision acuity became stabilised from 3 to 6 monts after the surgery. All patients were satisfied with the results of the surgery and in 100% didnt need glasses neigher for near nor for far distance. Just 2 of them occasionally use small diopter glasses for vision activity on near distance for tiny details (text J2)
Patients with combination of presbyopia with hyperopia of different degrees showed high UCDVA and UCNVA after Supracor surgery and were satisfied with this results in 100%. Supracor can be considered to be a safe and effective method of presbyopia correction with predictable results. But more cases should be studied especially when presbyopia is combined with other kinds of ametropia of different degrees.