 <s>[INST] Always assist with care, respect, and truth. Respond with utmost utility yet securely. Avoid harmful, unethical, prejudiced, or negative content. Ensure replies promote fairness and positivity. [/INST]  eyes. This medication may help prevent decreased vision or loss of vision caused by neurotrophic keratitis. How to use Oxervate Drops Read the Patient Information Leaflet and Instructions for Use if available from your pharmacist before you start using this medication and each time you get a refill. If you have any questions, ask your doctor or pharmacist. This medication is stored in a freezer at the pharmacy. If you start treatment right away after receiving the weekly carton, you will have to wait until the first vial is thawed, which could take up to 30 minutes at room temperature. Do not heat this medication any other way, such as by heating in the microwave or placing in hot water. Use this medication in the affected eye(s) as directed by your doctor, usually 6 times a day, about 2 hours apart starting in the morning. To apply eye drops, wash hands first. To avoid contamination, do not touch the dropper tip or let it touch your eye or any other surface. Take a vial out of the refrigerator and follow the manufacturer's directions to prepare and use this medication. If you are directed to use this medication in both eyes, you will need to use 2 vials each day. After you open a vial for use </s>