One of the symptoms of a pterygium is blurry or double vision in one eye.
This condition is usually not a cause for concern, and it can be removed if it interferes with your daily life. When you have a pterygium, your conjunctiva or mucous membrane grows into your field of vision. PterygiumĪ pterygium is a noncancerous growth that is often shaped like a wedge. If you have a cataract in one eye, double vision in one eye may be an early indicator. CataractsĬataracts cause the lens that helps focus your eye to become cloudy. If you have it, you may experience double vision in just one eye. The American Academy of Ophthalmology also describes that keratoconus usually appears in your late teens or early 20s. KeratoconusĪccording to the American Academy of Ophthalmology, keratoconus (when your cornea thins and bulges out) is a condition associated with eye rubbing and eye injury. If you have astigmatism in only one eye, you may experience double vision in just that eye. When the lens or cornea don’t have a perfect curve, you may experience a distortion or blurring of your vision. AstigmatismĪstigmatism refers to an imperfection of the curve of your eye’s lens or cornea. When the surface of your eye isn’t getting lubrication from your natural tears, a blurred or “phantom” image in one eye is not unusual. In this case, it’s referred to as dry eye syndrome. Likely causes include: Dry eyeĭry eye can be a temporary symptom of another condition, such as allergies. For additional information visit Linking to and Using Content from MedlinePlus.If you are only seeing double in one eye, the cause is most likely related to your eye itself (as opposed to a nerve or brain condition). Any duplication or distribution of the information contained herein is strictly prohibited without authorization. Links to other sites are provided for information only - they do not constitute endorsements of those other sites. A licensed physician should be consulted for diagnosis and treatment of any and all medical conditions. The information provided herein should not be used during any medical emergency or for the diagnosis or treatment of any medical condition. This site complies with the HONcode standard for trustworthy health information: verify here. Learn more about A.D.A.M.'s editorial policy editorial process and privacy policy. is among the first to achieve this important distinction for online health information and services. follows rigorous standards of quality and accountability. is accredited by URAC, for Health Content Provider (URAC's accreditation program is an independent audit to verify that A.D.A.M. Prior eye trauma, including surgery for cataractsĪ.D.A.M., Inc.Injury to the carotid or vertebral artery.Tumor, mass, or lymph node in the upper chest or lymph node causing pressure on a nerve may cause decreased sweating, a small pupil, or drooping eyelid all on the affected side (Horner syndrome).Seizure (pupil size difference may remain long after seizure is over).Infection of membranes around the brain ( meningitis or encephalitis).Increased intracranial pressure, because of brain swelling, intracranial hemorrhage, acute stroke, or intracranial tumor.Excess pressure in one eye caused by glaucoma The method of Maxwellian view is being used and what the eye sees is the lens L0 (or L4) illuminated to a uniform brightness.Brain tumor or abscess (such as pontine lesions).
Bleeding inside the skull caused by head injury.Other causes of unequal pupil sizes may include:
Other medicines that get in the eyes, including medicine from asthma inhalers, can change pupil size. The use of eye drops is a common cause of a harmless change in pupil size.
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