- A sight threatening infection of the cornea.
- Red eye
- Reduced visual acuity
- Severe pain (not in all cases)
- White spot on the cornea
- Light sensitivity
- Contact lens wearers are at particular risk and upmost care must be taken to follow good contact lens hygiene when inserting, removing and storing contact lenses.
- Unless specifically recommended by your ophthalmologist, never ever sleep with contact lenses in your eye.