Abstract

Introduction The toxic effects of the topical application of plant juice on the human eye have been mentioned previously in the ophthalmic literature. Wong 1 and Crawford 2 reported on crown flower ( Calotropis gigantea ) keratoconjunctivitis. Roberg 3 reported a case of conjunctivitis caused by corn cockle ( Agrostemmae githago ). Muthayya 4 reported on madar ( Calotropis gigantea ) keratitis, and Grana 5 on beach apple ( Hippomane mancinella ) conjunctivitis in soldiers. Our concern is with the more common Euphorbia . The genus Euphorbia contains nearly 1,000 species. Some of these plants are familiar as ornamental plants, ie, the poinsettia ( E pulcherrima ), the crown of thorns ( E milii ), the candelebra cactus ( E lactea ) (Fig 1 and 2), and the pencil tree ( E tirucalli ) 6,7 (Fig 3 and 4). These plants characteristically produce a sticky, acrid, milky juice. This juice exudes in copious quantities from any wound in the two common South Florida species E lactea and

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