Strong evidencevitamin
Vitamin A for Blurry Vision
Vitamin A is a structural component of rhodopsin, the light-sensitive photoreceptor pigment in rod cells. It maintains corneal epithelial integrity, supports conjunctival goblet cell mucin production, and is essential for dark adaptation and visual acuity.
How strong is the research?
Strong evidence
Based on a meta-analysis of multiple studies — the highest level of research evidence.
Research source
SourceGilbert C · Community Eye Health 2013How much to take
2500–5000 IU
Vitamin A is essential for rhodopsin (visual pigment) synthesis. Deficiency is the leading preventable cause of blindness worldwide.
When to take it
Best taken: with food