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  • Title: Treatment of vitamin A deficiency retinopathy with sublingual vitamin A palmitate.
    Author: Singer JR, Bakall B, Gordon GM, Reddy RK.
    Journal: Doc Ophthalmol; 2016 Apr; 132(2):137-45. PubMed ID: 26980447.
    Abstract:
    PURPOSE: To report treatment of vitamin A deficiency retinopathy with sublingual vitamin A drops. METHODS: Case report with review of the literature. RESULTS: A 69-year-old Caucasian woman with a history of small bowel resection presented with progressive symptoms of bilateral nyctalopia and decreased visual acuity. Ophthalmic examination revealed bilateral conjunctival xerosis and fine white granular deposits in the midperipheral retina suggestive of vitamin A deficiency. Full-field electroretinogram (ERG), multifocal ERG (mfERG), and two-color dark adaptometry revealed significant impairment of rod and cone photoreceptor function. Kinetic perimetry demonstrated depressed macular sensitivity with constriction of the finer isopters. After 5 months of treatment with sublingual vitamin A drops, the patient's vision, ERG, mfERG, dark adaptometry, and perimetry normalized. A review of the literature summarizing the electrophysiologic testing in vitamin A deficiency is also discussed. CONCLUSIONS: This case highlights novel observations on the effects of sublingual vitamin A supplementation for acquired vitamin A deficiency retinopathy. Sublingual vitamin A may represent a viable and efficacious treatment modality for vitamin A deficiency.
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