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[Artificial tear drops Thealoz in the correction of dry eye syndrome after keratorefractive surgery].

I. Panova,A. V. Titov,S. Golovatenko,D. R. Mirsaitova,O. P. Leshchik,M. Pogosyan

Published 2019 in Vestnik oftal mologii

ABSTRACT

PURPOSE To analyze the effectiveness of artificial tear drops Thealoz (trehalose 3%) in the correction of dry eye syndrome (DES) after keratorefractive surgery based on instrumental monitoring of the condition of eye surface. MATERIAL AND METHODS The study included 20 patients (40 eyes) who underwent a keratorefractive surgery and were prescribed instillations of Thealoz artificial tear drops for the correction of dry eye syndrome. Patients were divided into 2 groups: the 1st group consisted of 10 patients who underwent ReLEx SMILE surgery, the 2nd group - 10 patients after FEMTO LASIK. The effectiveness of the treatment was evaluated at 1 and 3 months after the surgery using conventional instrumental monitoring: tear break-up time (Norn's test), tear film osmolarity test and OCT-meniscometry. RESULTS Regardless of the type of surgery, tear film break-up time has significantly increased from 11.16±0.38 sec to 12.95±0.24 (p≤0.05) and 13.85±0.03 (p≤0.05) by months 1 and 3, respectively; it correlated with progressive decrease of tear film osmolarity from 317.29±1.39 to 308.00±0.79 mOsm/L (p≤0.05) at one month, and by the 3rd month - to 301.75±0.27 mOsm/L (p≤0.05). An improvement in OCT-meniscometry parameters was also observed in the form of a significant increase of the height and depth after 1 and 3 months. CONCLUSION The use of artificial tear drops Thealoz contributes to the reduction of DES manifestations after keratorefractive surgery: increased stability of the tear film, restoration of the tear meniscus parameters and tear film osmolarity. The use of trehalose ophthalmic solution is advisable in patients after keratorefractive surgery.

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