Depending on the specific product, isotin or eye drops with similar names may include various medications, thus it's crucial to carefully read the label or prescription. Not every eye drop is appropriate for everyone; some are used to treat dry eyes, allergies, infections, or high eye pressure. Your medical condition and the particular eye issue will determine what constitutes a "good" eye drop. Unadvised use of the incorrect eye drop might occasionally exacerbate ocular pressure, infection, or redness. It is best to use it just as directed by an ophthalmologist and to consult a doctor if you experience pain, impaired vision, swelling, or ongoing redness.

Isotine eye drops are generally well tolerated. However, some people may experience temporary blurred or cloudy vision, a slight unpleasant taste in the mouth, or mild eye discomfort after use. These effects are usually short-lasting and settle on their own. If symptoms continue, it is best to consult an eye doctor.