22/01/2026
A young woman came in with severe pain and redness in one eye. On examination, she had a small corneal ulcer.
The cause? She was cleaning her contact lenses with tap water.
Here’s why that’s dangerous👇
Tap water is not sterile. It can carry bacteria, fungi, and a dangerous organism called Acanthamoeba, commonly found in tap water, pools, hot tubs, and lakes.
When it sticks to contact lenses, it can infect the cornea and cause Acanthamoeba keratitis, a serious condition that can threaten vision.
Warning signs include:
• Severe eye pain (often worse than it looks)
• Redness and light sensitivity
• Worsening corneal ulcers
🚫 Never clean or store contact lenses with tap water
✅ Always use prescribed contact lens solution
👩⚕️ See an eye doctor immediately if you feel pain or redness
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