“…Sex-associated differences in ocular physiology have been identified in not only the meibomian glands 1 but also the lacrimal glands (differences in lacrimal gland size), 2 conjunctiva (women have fewer goblet cells than men), 3 and cornea (thickness, hydration, curvature, sensitivity, endothelial pigmentation, contact lens tolerance, and higher prevalence of decreased visual acuity during the menstrual cycle, pregnancy, and menopause), 4 as well as other ocular structures (Figure 1). 5 Maintenance of vision has a significant impact on quality of life, especially among an aging population, and women make up two-thirds of the blind and visually impaired in the United States. 6 This may not entirely reflect the direct impact of sex on eye function and has been attributed, for some conditions, to the fact that women live longer than men.…”