| Autor: |
Meghan K. Berkenstock, Charles J. Castoro, Andrew R. Carey |
| Jazyk: |
angličtina |
| Rok vydání: |
2020 |
| Předmět: |
|
| Zdroj: |
International Journal of Retina and Vitreous, Vol 6, Iss 1, Pp 1-5 (2020) |
| Druh dokumentu: |
article |
| ISSN: |
2056-9920 |
| DOI: |
10.1186/s40942-020-00224-1 |
| Popis: |
Abstract Background Vitamin A deficiency is rare in the United States and can be missed in patients with malabsorption syndromes without a high dose of suspicion. Ocular complications of hypovitaminosis A include xerosis and nyctalopia, and to a lesser extent reduction in visual acuity and color vision. Outer retinal changes, as seen on spectral domain optic coherence tomography (SD-OCT), in patients with vitamin A deficiency have previously not been documented. Case presentation We present two cases with symptoms of severe nyctalopia who were subsequently diagnosed with severe Vitamin A deficiency and their unique findings on SD-OCT of outer nuclear layer diffuse thinning with irregular appearance of the interdigitating zone and the ellipsoid zone as well as normalization after vitamin A supplementation. Conclusions Outer nuclear layer thinning and disruption of the outer retinal bands on SD-OCT are reversible with correction of vitamin A deficiency. Improvement in visual acuity, color vision, and nyctalopia are possible with early diagnosis and appropriate treatment. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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