Corneal opacification, an atypical presentation of cystic fibrosis: a case report and review of the literature

Abstract

Abstract Background Respiratory and gastrointestinal manifestations are the main causes of mortality and morbidity in cystic fibrosis. Although these symptoms are well recognized, ophthalmic involvement of cystic fibrosis secondary to vitamin A deficiency is uncommon and has been reported very rarely in the medical literature. Case presentation Here, we report a 2.5-year-old Iranian boy who presented with bilateral corneal xerosis and corneal opacity secondary to vitamin A deficiency related to cystic fibrosis malabsorption. Conclusion Malabsorption of fat-soluble vitamins is a common presentation in cystic fibrosis, but corneal opacity secondary to vitamin A deficiency as the initial presentation of cystic fibrosis is a very rare manifestation of fat malabsorption. This highlights the importance of complete systemic examination besides ophthalmic examination in approaching a child with ophthalmic complaint.