noun
eye lotion; ophthalmic solution
Medical term for a liquid preparation applied to the eyes; not the same as everyday eye drops (目薬).
医師は点眼水を処方した。
The doctor prescribed an eye lotion.
Common word for eye drops used for dryness or minor irritation; 点眼水 is a more clinical term for medicated eye solutions.
Compound of 点眼 (てんがん, 'instillation into the eye') + 水 (すい, 'water/liquid').