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. 2019 Apr 10;13:599–604. doi: 10.2147/OPTH.S198349

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© 2019 Alanazi et al. This work is published and licensed by Dove Medical Press Limited

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Images of tear ferning (TF) in the left eye that were obtained before and after vitamin A supplementation for an individual with healthy eyes.

Notes: (A) before vitamin A supplementation; (B) after vitamin A supplementation.