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This is the first report to document the following: (1) a correlation between the number of MGYLS in the lower eyelid and dry eye symptoms; (2) the number of MGYLS varies significantly across the lower eyelid, with the highest number of MGYLS in the nasal third and the lowest number of MGYLS in the temporal third of the lower eyelid; and (3) instrumentation to standardize diagnostic meibomian gland expression is desirable if not mandatory for the evaluation of meibomian gland function.
Korb et al. (Wed,) studied this question.