Fig. 4From: Natural history of X-linked hypohidrotic ectodermal dysplasia: a 5-year follow-up studya Infrared images of the everted lower eyelid highlight some rudimentary Meibomian gland ducts (white dots) in a representative male subject with XLHED. b more than 20 fully developed Meibomian gland ducts, extending from the lower tarsus to the orifices at the lid margin, in an age-matched healthy controlBack to article page