The phenomenon you describe, seeing one object as two images, is known as double vision or diplopia. Double vision can be a symptom of underlying eye issues or other medical conditions. Therefore, accurately identifying the cause is crucial to assess its severity.

Doctor at Tam Anh General Hospital performing an eye exam. Illustration: Hospital provided

This condition often relates to eye problems such as astigmatism, dry eyes, cataracts, or certain corneal abnormalities. Astigmatism is a common cause where light does not focus correctly on the retina. Individuals with astigmatism may experience blurry, shadowed vision, or see one real image and one ghost image. Double vision can occur in one eye or both, affecting a person's balance, mobility, and reading ability.

Beyond common eye issues, other medical conditions can also cause double vision. These include strabismus (crossed eyes), myasthenia gravis, damage to the ocular muscles, or optic nerve damage. In some cases, double vision may signal neurological problems such as brain injury, nerve paralysis, or meningitis. If double vision persists for several days or appears suddenly, it is important to seek early medical attention for timely treatment.

Given that your symptoms have lasted for many days, it is advisable to consult an ophthalmologist promptly to determine the cause. Depending on the specific case, a doctor may prescribe appropriate treatment methods such as corrective glasses, surgery, or botox injections. It is important not to self-medicate with eye drops before the cause has been identified.

To improve double vision, individuals should ensure adequate rest and avoid overworking their eyes. Maintaining a balanced diet is also beneficial. Regularly supplementing with broccophane extract from broccoli can help boost thioredoxin, a small antioxidant protein. This nutrient supports retinal and lens protection, maintains vision, and may prevent double vision caused by screen vision syndrome.

Doctor Hoang Quyet Tien

Medical Information Center

Tam Anh General Hospital, Ho Chi Minh City