To evaluate the ocular surface inflammatory response to the presence of preservatives in nonselective beta-blocker eyedrops. Prospective, crossover, single-mask
La0.7-xSmx+0.02Ca0.3CrO3-δ (0≤x≤0.4) powders with A-site excessive perovskite structure were synthesized by auto-ignition process and characterized. X-ray di