Localised unilateral blepharochalasis.

In 1807 Beers' described a condition which was later named blepharochalasis (Gk=eyelid slackening) by Fuchs.2 The condition consists of recurrent attacks of oedema of the eyelids and in chronic conditions the skin becomes reddish, thin, and redundant. Periorbital sequelae include ptosis, pseudoepicanthic fold with underlying nasal fat pad atrophy, blepharophimosis, proptosis, lower lid malpositions, lacrimal gland prolapse, and cysts. The peak age of onset is in the teens and twenties with no sex predominance. The attacks of oedema occur with varying frequency during the active/early stage (monthly annually) and last a few hours to a week or more. They continue for many years but gradually become less frequent until a quiescent/late stage is reached. Unilateral blepharochalasis has been reported to be quite rare.3'5 Histological changes in blepharochalasis include epidermal atrophy, a loss of elastin fibres, and dermal vasculitis with an increase in the size of the vessels and perivascular cuffing. We present a case of localised, unilateral blepharochalasis which was confined solely to the lateral half of the left upper and lower eyelids.