Painful conditions affect the free nerve endings in the cornea and conjunctival membranes and cause blepharospasm. It is a sign that something is wrong with the eye or eyelid - usually an infection or injury, much the same as those already mentioned above. The condition usually starts with rapid eye blinking and later the eyelids will close. This is defined as the involuntary closure of the eyelids, hence squinting. A generalized dermatitis can extend to the eyelids and cause swelling and squinting. A stye is a red lump seen near the edge of the eyelid caused by an infection of the sebaceous glands of the eyelid. Bacterial infection, usually due to Staphylococcus, cause abscess of the glands of eyelids or a general infection of the eyelids. ![]() We will consider upper respiratory diseases below. Infections can also cause swelling of the eyelids and conjunctiva. In this condition, the edges of the eyelids are turned inwards and the eyelashes rub against the cornea. The most common of this is the condition called entropion, a congenital anomaly of the eyelid. Localized allergic reaction, example from insect bites, can also cause swelling of the eyelids and squinting.įoreign bodies that irritate the eyelids and conjunctiva can also cause squinting of the affected eye. Certain chemical substances, pellets from BB guns and small pieces of shattered glass are also common items causing trauma to the eyes and its associated structures.Īllergies, especially a generalized systemic allergic reaction from inhalant and food allergens, can cause the eyelids and conjunctiva to become reddened and swollen. Trauma may be due to a scratch, an abrasion or a laceration. The pain from the injury will cause the cat to close its eyes or squint. Feel free to call us at 97 if you want to schedule an appointment or make inquiries about dry eye syndrome.In the condition called blepharitis, it is the eyelid that is swollen giving the appearance that the cat is squinting one eye.īlepharitis and conjunctivitis may be caused by physical traumatic injury to the eyelids or conjunctiva. You are welcome to see us at our clinic in College Station, Texas, for a one-on-one consultation. Here at Urban Optics, we can help catch the dry eye symptoms in your one eye early. A trained and experienced tear film expert may have the opportunity to treat the condition. If you have dry eye syndrome in just one eye, this is a sign that your eye doctor may still remedy it. Some infections such as HIV, shingles, and Bell’s palsy can also cause dry eye syndrome.
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