Preservative-free artificial tears are often preferred for frequent use or sensitive eyes, while preserved drops may be convenient for occasional dry eye. Learn how the two differ and which type may fit your symptoms.

Dry eye does not always happen because your eyes fail to produce enough tears. For many people, the problem is that tears evaporate too quickly. MIEBO is a prescription eye drop designed to address this part of dry eye disease. Its active ingredient, perfluorohexyloctane, spreads across the tear film and forms a thin layer at its surface. This layer is expected to reduce tear evaporation. That makes MIEBO different from traditional artificial tears, which mainly add moisture to the surface of...

Cataract surgery usually makes vision brighter and clearer. After the cloudy natural lens is replaced with a clear artificial lens, however, some patients suddenly notice small spots, threads, cobwebs, or squiggly shapes drifting across their vision. These are eye floaters. In many cases, floaters after cataract surgery are harmless. Some were already present before surgery but became easier to see once the cataract was removed. New floaters also sometimes appear because of changes in the...