noun
- a small, smooth stone or pellet placed under the eyelid to remove dust or other irritants from the eye
Usage: also called an eye bath or optrex in some regions; historically used before modern eye drops became available
Examples
- She used an eyestone to wash out the dust that had blown into her eye.
- The old remedy involved placing a smooth eyestone under the eyelid.
- Before modern eye drops, people relied on eyestones to relieve eye irritation.
- The eyestone was moistened with water before being inserted into the eye.
- Grandma kept an eyestone in her medicine cabinet for emergencies.