Common Conjunctival hyperemia , Stinging in the eyes, Foreign body sensation in eyes, Eyelash changes , Eye itching, Burning sensation in eye, Increased iris pigmentation.

Expert advice for Zytrav Eye Drop
Zytrav helps lower high pressure in the eye and reduces the risk of vision loss. For best results, put one drop once a day in the evening/night in the affected eye(s). Zytrav may cause brown pigmentation of the iris which may be permanent. Your eyelashes may become more dense and eyelid skin may darken. These changes should disappear after discontinuing Zytrav. Make sure to use within 4 weeks of opening the bottle. Wait for at least 5-10 minutes before delivering the next medication in the same eye to avoid dilution. Apply pressure on the corner of the eye (close to the nose) for about 1 minute, immediately after instilling the drop.