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Evaluation of tear osmolarity and meibography in patients having cataract surgery

Poster Details

First Author: H.Bayhan TURKEY

Co Author(s):    S. Aslan Bayhan   B. Kucuk                 

Abstract Details


to evaluate the ocular surface, tear osmolarity, meibography and dry eye parameters in patients having cataract surgery


Bozok University Faculty of Medicine, Ophthalmology Department, Yozgat, Turkey.


In this prospective study, 80 patients that underwent uncomplicated phacoemulsification surgery in our clinic and 40 control cases were evaluated. Detailed ophthalmological examinations of the cases and tear osmolarities measured with osmolarity instrument (TearLab Corporation), tear break up time (TBUT), and Schirmer tests were recorded. All subjects underwent lower and upper lid meibography and meibomian gland loss rates were measured manually. Measurements were performed once in the control group, whereas twice (before surgery and one month after surgery) in the study group.


Osmolarity score was 301.5 ± 7.1 mOsm/L before surgery and 309.6 ±7.4 mOsm/L after surgery, whereas 300.9±8.3 mOsm / L in the control group (p <0.05). The mean TBUT was decreased from 11.9 ± 2.1 sec preoperatively to 7.5 ± 3.9 sec postoperatively in the study group (p <0.05) and the difference between postoperative TBUT value and TBUT value of the control group (12 .3 ± 2.2 sec) was significant (p <0.05). Schirmer test score did not change significantly after surgery (p>0.05).


.Cataract surgery causes dry eye symptoms and leads to increment in tear osmolarity.

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