 <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] /air conditioning, computer use/reading, and certain medications.This product may contain 1 or more of the following ingredients: carboxymethylcellulose, dextran, glycerin, hypromellose, polyethylene glycol 400 (PEG 400), polysorbate, polyvinyl alcohol, povidone, or propylene glycol, among others.Eye lubricants keep the eye moist, help to protect the eye from injury and infection, and decrease symptoms of dry eyes such as burning, itching, and feeling as if something is in the eye. How to use Dextran 70-Hypromellose (PF) Dropperette Follow all directions on the product package. If you have any questions, ask your doctor or pharmacist. Do not use a solution that has changed color or is cloudy. Certain brands (containing glycerin with polysorbates, among other ingredients) may have a milky appearance. This is okay as long as the solution does not change color. Some eye drops need to be shaken before use. Check the label to see if you should shake your product before using. Usually, drops may be used as often as needed. Ointments are usually used 1 to 2 times </s>