Blurred vision, burning/stinging/itching/redness of the eye, feeling as if something is in the eye, changes in eyelash number/color/length/thickness, eyelid changes/skin darkening, dry eye, lid crusting/discomfort, or increased sensitivity to light may occur. If any of these effects persist or worsen, notify your doctor or pharmacist promptly.
This medication may slowly (over months to years) cause brown discoloration of the colored portion of the eye (iris). If you are using latanoprost in only one eye, only that iris may change color. This color change may be permanent but the long-term effects are uncertain. Notify your doctor if this occurs and schedule regular eye exams to monitor it.
Remember that your doctor has prescribed this medication because he or she has judged that the benefit to you is greater than the risk of side effects. Many people using this medication do not have serious side effects.
Tell your doctor right away if you have any serious side effects, including: eye pain, suspected eye infection (unusual redness or swelling of eyes), rapid vision changes (e.g., loss of vision).
A very serious allergic reaction to this drug is rare. However, get medical help right away if you notice any symptoms of a serious allergic reaction, including: rash, severe itching/swelling (especially of the face/tongue/throat), dizziness, trouble breathing.
This is not a complete list of possible side effects. If you notice other effects not listed above, contact your doctor or pharmacist.
In the US - Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088 or at www.fda.gov/medwatch.
In Canada - Call your doctor for medical advice about side effects. You may report side effects to Health Canada at 1-866-234-2345.