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A corneal ulcer is an open sore on the cornea, the clear front surface of the eye. It is most often caused by an infection, but injury, severe dry eye, or exposure problems can also lead to an ulcer. Corneal ulcers can worsen quickly and may cause scarring or vision loss without prompt treatment. Because of this, a suspected corneal ulcer is treated as an eye emergency.
read more about corneal ulcer ...Most corneal ulcers are infectious, and contact lens wear is a major risk factor, especially overnight wear or poor hygiene. Small scratches on the cornea can let germs enter and multiply. Certain conditions that reduce blinking or tear quality can also increase risk.
Symptoms often include significant pain, redness, tearing, light sensitivity, and blurred vision. Many people notice a white or gray spot on the cornea or discharge from the eye. Symptoms can start suddenly and worsen over hours to days. A contact lens wearer with a painful red eye should seek urgent evaluation.
Diagnosis is made with a slit-lamp exam and fluorescein staining to highlight the ulcer. If the ulcer is large, central, or severe, your clinician may take cultures before starting treatment. Treatment often includes prescription antimicrobial eye drops and close follow-up, sometimes daily at first. Steroid drops may be considered later in selected cases, but only under an ophthalmologist's direction after infection control.
Prevention focuses on safe contact lens habits and protecting the eye surface. Always wash and dry hands before handling lenses and use fresh disinfecting solution every time. Avoid water exposure with contacts, including swimming and showering, unless your doctor has advised safe options. Replace lens cases regularly and follow your prescribed wear schedule.
Yes. A corneal ulcer can threaten vision if treatment is delayed, especially when it is infectious or centrally located. Seek urgent eye care if you have severe pain, light sensitivity, discharge, or a sudden drop in vision.
Yes. Contact lenses can increase risk, particularly with overnight wear, poor cleaning, or water exposure while wearing lenses. If you suspect an ulcer, stop wearing lenses and bring them and the case to your appointment if asked.
Treatment usually involves prescription antimicrobial drops, sometimes very frequently at the start, plus careful follow-up. Your clinician may culture the ulcer to guide therapy in more serious cases. Pain control and supportive care may also be used while the cornea heals.
Healing time varies by cause and severity. Some mild ulcers improve within days with correct treatment, while severe ulcers may take weeks and can leave scarring. Your ophthalmologist will monitor healing and adjust treatment based on response.
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