26; 95 % CI, -0.48 to -0.04; P = 0.018), with significant heterogeneity between studies (I2 = 59.3 %, P = 0.043). CONCLUSION It was found that serum vitamin D had a significantly lower level in dry eye disease patients, and correlated with ocular surface disease index but no other dry eye disease parameter. The findings add to the existing…[Read more]

To evaluate the characteristics of Pb(Zr,Ti)O3 thin films (about 10 lm thick) with three different sputtering configurations-single-layer deposition (SL), multilayer deposition with internal electrodes (ML), and multistep deposition (MS)-were prepared. The SL films exhibited poorer dielectric characteristics than the ML and MS films. The…[Read more]