Purpose: To evaluate the effect of excess meibum on tear evaporation rate in patients with and without dry eye. Methods: Eleven healthy subjects and 16 patients with dry eye were tested. The dry eye group was divided into 2 subgroups: classic keratoconjunctivitis sicca (KCS) with clear and easily expressed meibum and KCS with meibomian gland dysfunction (MGD) with turbid secretions ... Read more

PURPOSE: To determine the prevalence of dry eye disease (DED) in a tertiary ophthalmic outpatient hospital based clinic in southern Egypt. METHODS: A cross-sectional observational hospital-based study of 3128 subjects was conducted at the Ophthalmology out-patient clinic of the Sohag University Hospital, Egypt, between January 2011 and August 2013. The participants comprised adult ophthalmic outpatients aged 18 years or older. ... Read more