
Contact lenses offer convenience and crisp vision, but they also require careful handling. If you’re not following proper hygiene or wear guidelines, you could be putting your sight at risk.
One of the most serious complications for contact lens users is a corneal ulcer — an open sore on the front surface of your eye.
At Central Valley Eye Medical Group, we bring board-certified, fellowship-trained expertise to every patient visit. Whether you’re managing dry eye, keratitis, or worried about a corneal ulcer, we provide state-of-the-art care with a personal touch.
What Is a Corneal Ulcer?
A corneal ulcer is an open wound on the transparent layer that covers the front of your eye. It’s typically caused by infections — especially bacterial ones — and can progress quickly. It can even result in vision loss if it’s left untreated.
Symptoms of a corneal ulcer include:
- Eye redness and discomfort
- Sudden blurry or hazy vision
- Light sensitivity
- Excess tearing or discharge
- The sensation of something in your eye
Why Contact Lens Wearers Are at Higher Risk
The surface of your eye is delicate and highly vulnerable to bacteria, fungi, and parasites, especially when compromised by improper contact lens use. Some common culprits behind corneal ulcers in lens wearers include:
- Sleeping in lenses that are not designed for overnight wear
- Skipping cleanings or using expired contact solution
- Wearing lenses beyond their intended lifespan
- Showering or swimming while wearing lenses
- Using tap water to rinse lenses or cases
Each of these habits creates an entry point for infection. Once microbes invade the cornea, an ulcer can form, sometimes in just 24 hours.
How to Prevent Corneal Ulcers
The best defense is a good lens hygiene routine. Follow these tips to minimize your risk:
- Wash your hands thoroughly before you insert or remove lenses.
- Rub and rinse lenses with fresh solution. Never reuse old liquid.
- Replace your lens case every 1–3 months.
- Stick to your replacement schedule. Don’t stretch your lens lifespan.
- Remove lenses before sleep unless prescribed otherwise.
- Avoid water exposure, including pools, hot tubs, and showers.
Schedule an Eye Exam in Stockton, Manteca, or Modesto
Corneal ulcers are preventable with the right contact lens habits and regular checkups. If you’re experiencing symptoms or want guidance on safe lens wear, schedule an appointment with Central Valley Eye Medical Group. Contact us today at our Stockton, Manteca, or Modesto location.



