These are the first totally implanted lacrimal reservoirs in human beings. They have proved to be a good solution for severe dry eye. At present, this method is the only one that permits a maintained wet eye surface, and the performance of corneal, conjunctival, limbal and amniotic membrane transplants in total or almost total xerophthalmia. It may also be a good solution for some of the so-called essential blepharospasms, which are frequently triggered by an underlying dry eye.
The lacunar sulci are shallower and vanish sooner in ocular cicatricial pemphigoid and Sjogren syndrome than in normals. Investigating the vanishing point of the lacunar sulci while abducting is useful for grading the shrinkage of the conjunctiva, caruncle and medial canthus.
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