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First Author: S.Kuznetsov RUSSIA
Co Author(s): T. Galeev R. Galeev T. Silnova
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Clinical study of five-years results of implantation of PTHIOL (open-bag device) realizing a principle of native lens volume-changing in patients with age-related cataract.
1 Penza Federal State Institute for Postgraduate Medical Studies of the Ministry of Health, Penza, Russia; 2 The Penza Regional Eye Hospital, Penza, Russia
PTHIOL (RF Patent 2208418) manufactured by Reper-NN Ltd. 6 x 15 x 0.2 mm by size were used in clinic at 110 eyes of 92 patients with age-related cataract during a routine PHACO. Standard research methods were used in all patients before and after surgery. PTHIOL position was estimate by UBM in 1-3-6-12 months, annually thereafter. Follow-up was from 6 months to 5 years (at mean 3.74 ±1.21 years).
Visual acuity was at mean 0.82 ±0.15 in all follow-up. Correct and stable PTHIOL position was proved by UBM method. PTHIOL provided recovery of native lens shape and size. In all patients the parameters of CB with implanted lens did not significantly differing from those of the native lens. In all cases, there was PTHIOL close contact with CB throughout the entire follow-up period. PCO and CB folds formation were not observed in any case of follow-up.
The 5-years results of volume-changing PTHIOL implantation allows to conclude, that the open-bag device really can solve a problem of prevention of secondary cataracts and native lens volume-changing. Also, there was no long-term complications of the CB (contractures, disturbances of intraocular lens, change of the lens position) in any case.