Related Experiment Video
Updated: May 9, 2026
10:14
Ex Vivo OCT-Based Multimodal Imaging of Human Donor Eyes for Research into Age-Related Macular Degeneration
Published on: May 26, 2023
Retinal structure in vitamin A deficiency as explored with multimodal imaging
Tomas S Aleman1, Sean T Garrity, Alexander J Brucker
1Department of Ophthalmology, Scheie Eye Institute, University of Pennsylvania, 51 N. 39th Street, Philadelphia, PA, 19104, USA, aleman@mail.med.upenn.edu.
Documenta Ophthalmologica. Advances in Ophthalmology
|August 1, 2013
Summary
Vitamin A deficiency caused severe vision problems and characteristic retinal lesions in a patient. Imaging revealed these lesions localized to the photoreceptor outer segments, improving with supplementation.
Area of Science:
- Ophthalmology
- Nutritional Science
- Medical Imaging
Background:
- Vitamin A deficiency can cause significant visual impairment, including nyctalopia (night blindness) and potentially irreversible retinal damage.
- Early diagnosis and intervention are crucial to prevent vision loss associated with vitamin A deficiency.
Observation:
- A 63-year-old man with a history of liver and pancreatic disease presented with blurred vision and nyctalopia.
- Ophthalmic examination revealed severe rod dysfunction, reduced cone function, and characteristic yellow-white retinal lesions.
- Serum vitamin A levels were critically low, confirming deficiency.
Findings:
- Spectral domain optical coherence tomography (SD-OCT) precisely localized the retinal lesions to the photoreceptor outer segments.
- Short-wave fundus autofluorescence (SW-AF) showed these lesions as hypoautofluorescent areas.
- Supplementation with vitamin A led to symptomatic improvement and restored retinal function, though lesions persisted.
Implications:
- This case highlights the utility of advanced imaging techniques like SD-OCT and SW-AF in diagnosing and understanding the structural basis of vitamin A deficiency retinopathy.
- The findings suggest that vitamin A deficiency retinopathy shares imaging characteristics with certain genetic retinal diseases and age-related macular degeneration, underscoring the importance of the retinoid cycle in photoreceptor health.
- Prompt vitamin A supplementation is vital for functional recovery in patients with vitamin A deficiency.
