Hydroxymethylcellulose (HMC) eye drops are a type of artificial tear that are used to relieve dry eyes and reduce symptoms of eye strain. These drops work by providing a layer of moisture on the surface of the eye, which helps to soothe and hydrate the eyes. They can also help to improve tear film stability, reduce redness and discomfort, and protect the eyes from further damage.
HMC eye drops are typically used as a temporary relief for dry eyes and are not intended to treat underlying eye conditions. They are available over the counter and can be used as needed to relieve symptoms. However, it is always best to consult with an eye doctor before using any new eye product, especially if you have pre-existing eye conditions or are using other medications.