Mucous membrane pemphigoid carries a particularly important risk requiring referral to which specialist?

Mucous membrane pemphigoid (a subepithelial blistering disease, with biopsy showing separation at the basement membrane zone rather than within the epithelium) carries a significant risk of ocular involvement that can progress to scarring and blindness if not identified and managed promptly — making ophthalmologic referral essential whenever this diagnosis is suspected.