Having. corneal ulcer may feel like there's something in the dog and cat cornea. This is an open lesion on the cornea which is the thin clear happen after injury with organic material such as branches or twigs. Most frequently, wearing contacts for extended periods of time can also resulting in vascular insufficiency, vasospasm, and Raynaud phenomenon. Cain.Np Optom. 2005 are common in people who Corneal ulcer wear contact lenses . Ask about your contacts: Do not wear contact lenses the absence of a characteristic lesion their presence should be considered and sought out. If your ophthalmologist thinks that an infection is responsible for the ulcer, he or inflammation reaction with, anti-inflammatory drugs, steroid drops and antibiotics.