Hello.  About 3 months ago, my 10-yr-old son began developing, out of the blue, significant \"crusts\" along the rim of his upper eyelid - just at the base of the lashes.  The more I attempt to gently remove (warm water & washcloth/q-tip with aquaphor), the more it is accumulating.  Could you please tell me what this might be?
Hi.... by what you quote I feel that your kid might be having seborrhea of the eyelashes. This is a quite common condition in this age group and will be acquired by contact. The Other possibility is a blepharitis of the eyelids which is related to infection and inflammation. Usually eye conditions AAR best diagnosed and treated only after directly seeing them.  I suggest you consult your ophthalmologist regarding this. Regards -