Reference: Fataawa al-Lajnah ad-Daa.imah lil-Buhooth al-‘llmiyyah – Fatwa No.7351
Fataawa Ramadhaan – Volume 2, Page 509, Fatwa No. 470
Question: Is it permissible to use eye drops during the day in Ramadhaan?
Response: Yes, it is permissible and does not nullify the fast according to the correct of the two opinions.
And with Allaah lies all the success, and may Allaah send prayers and salutations upon our Prophet Muhammad (sal-Allaahu ‘alayhi wa sallam) and his family and his companions.