Why are human eyes incredibly sensitive to nearly every stimuli but our eyelids can glide over them with no irritation?
In: Biology
Optometrist here. The inside of your eyelid is called the palpebral conjunctiva. They eye produces tears and this lubricates these surfaces. Dry eye can be caused by a variety of factors and if your eye is dry enough your lids do not glide as you describe. Giant papillary conjunctivitis, recurrent corneal erosion and Sjogren’s syndrome are big problems that cause huge discomfort.
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