Timnol Eye Drop is a medication used to treat elevated intraocular pressure in individuals with ocular hypertension or open-angle glaucoma, reducing the risk of vision loss. It reduces fluid production by lowering pressure. To use, wash hands, follow prescribed dosages, remove contact lenses, and wait for at least 15 minutes before re-inserting them. The medicine should be used regularly, at the same time each day, and should not be used if you have asthma, severe COPD, heart conditions, diabetes, breathing problems, thyroid or liver issues, or are pregnant or breastfeeding.