Common Stinging in the eyes, Blurred vision, Burning eyes.

Expert advice for Timolol (topical)
Timolol (topical) helps lower high pressure in the eye and reduces the risk of vision loss. Never miss a dose. If you do, take it as soon as you remember as missed doses can cause fluctuations in the eye pressure which may worsen your condition. Notify your doctor if you have lung diseases such as asthma, or heart diseases (slow heart rate, high blood pressure) as Timolol (topical) may worsen these conditions. Apply pressure on the corner of the eye (close to the nose) for about 1 minute, immediately after instilling the drop so that the medicine does not drain away from the eye. When applying multiple eye medications, wait for at least 5-10 minutes before delivering the next medication in the same eye to avoid dilution.  You may experience a stinging sensation for 1-2 mins after instilling eye drops. Notify your doctor if it persists for longer.