Regular use of eye drops round the year is necessary for treatment of eye ailment; therefore can it be used during roza also without affecting roza in ramzan.
بسم الله الرحمن الرحيم
(Fatwa: 1203/927/B=9/1434)
Roza (fast) does not break (nullify) by administering eye drop in the eyes whether it is used occasionally or at daily basis.
Allah knows Best!
Darul Ifta,
Darul Uloom Deoband