First Author: C.Yuksel TURKEY
Co Author(s): G. Iskeleli A. Ozkok Y. Karakoc
Purpose:
To compare the effects of short and long time silicone hydrogel (SiH) contact lens wear on tear film osmolarity.
Setting:
The study has been conducted in the Contact Lense Polyclinics of the Cerrahpasa School of Medicine at Istanbul University.
Methods:
Tear film osmolarity values of 29 eyes of 15 patients (group 1) who wore SiH contact lenses for 1.4 ± 0.4 years were compared with those of 23 eyes of 12 patients (group 2) who wore their lenses for 5.1 ± 1.6 years. Tear film osmolarity was measured with TearLab™ Osmolarity System (TearLab™ Corp. San Diego, CA). Schirmer test was also done. The results were statistically compared with unpaired t test.
Results:
Mean age was 21.5 ± 3.3 years and 23.5 ± 3.3 years in group 1 and 2, respectively. There was no statistically significant difference (p>0.05). The mean tear film osmolarity values were found to be 288.48±7.16 and 289.30±6.82 mOsm in group 1 and 2, respectively. There was no statistically significant difference (p>0.05). The mean Schirmer test value was 17.55±5.40 and 18.26±6.96 mm in group 1 and 2, respectively. There was no statistically significant difference (p>0.05).
Conclusions:
Contact lens wear may cause evaporation from the tear film and can increase tear film osmolarity leading to symptoms of dry eye disease. In the current study, there was no tendency to have increased tear film osmolarity in the long time SiH contact lens wear group compared to the short time SiH contact lens wear group. FINANCIAL DISCLOSURE?: No
Please wait while information is loading.
