Bangladesh Houttuynia Japanese Medicine TRPM8 agonist aqueous-deficient dry eye brief-type self-administered diet history questionnaire cross-sectional study cryosim-3 diabetes dry eye dry eye disease dry eye symptoms epidemiology fatty acids gabapentin global health graves’ ophthalmopathy hyaluronan hylan A inflammation intense pulsed light meibography meibomian gland meibomian gland dysfunction meibomian glands meiboscore morphological changes multicenter nerve growth