Angelic

This very rare plant with large brown leaves only grows underground on rocky ground. Its size rarely exceeds 20 inches in height, but its diameter can be greater than 3 feet. These nut-like fruits are highly prized for fortifying eyesight.
Eating angelic nuts gives a +1 bonus to saving throws against being blinded for the next 8 hours. Absorbing a large amount does not stack the bonus.