While some cases of double vision are amusing, others are not and can be rather distressing. Double vision (diplopia) is an undesirable and sometimes terrifying phenomenon in which you can see two different images of the same item. This can happen some of the time or all of the time. Sometimes the two images are stacked one on top of the other, sometimes side by side, and sometimes blended. Other symptoms might accompany double vision that can be equally as disturbing for the sufferer. These are some examples:
- Nausea
- Headaches
- Eyesight deficiency
- Eyelids that droop.
There may also be a ‘cross-eyed’ or ‘wandering’ eye appearance on occasion. The source of your double vision will depend on whether it is coming from one eye or both, therefore for any incidences of double vision (especially if you have never experienced it before), you should always see your eye doctor, who will be able to best advise you on whatever treatment option is available.
Monocular Diplopia
Most people notice that they only acquire double vision when they try to see something with both eyes and that when one eye is covered, the double vision disappears. However, double vision can occur in only one eye, referred to as monocular,’ and is more uncommon.
If the double vision is only in one eye, your eye doctor may take a different approach to determine reasons and treatment because he may be looking for distinct problems.
Diagnosing Double Eye Vision
Consult your eye doctor right away if you are experiencing double vision. Ophthalmologists start with a thorough eye exam to determine the health of your eyes and the pattern of eye movement.
During the assessment, Ophthalmologists ask you questions to determine which diagnostic tests you require based on the underlying reason for your double vision. Prepare to inform your doctor if your symptoms include:
- In one (monocular) or both (bilateral) eyes (binocular)
- Continuous or sporadic (occurring occasionally)
- Gradual or abrupt
- The same or different about the head position or eye gaze direction
- In either close or far vision
- Horizontal (two photos side by side), vertical (one image above the other), or oblique (images separated diagonally)
Causes of Double Vision
A variety of diseases, including issues within the eye, such as the cornea or lens, can produce double vision. Some reasons, such as astigmatism, can be mild, while others, such as an aneurysm or stroke, can be fatal. Other underlying causes may include difficulties with the muscles or nerves that control eye function and movement and issues with the brain.
Cornea Issues Cause Double Vision
The cornea is the transparent layer covering the front of the eye. Its primary role is to concentrate incoming light into the pupil of the eye. Problems with the cornea distort its surface, resulting in double vision. Among these issues are:
- Astigmatism
- Dry eyes
- Shingles and herpes zoster are examples of infections.
- Scarring as a result of sickness, accident, or infection.
Lens Issues Caused Double Vision
The lens of your eye collaborates with the cornea to focus incoming light onto the retina (back of the eye). The lens, which is located behind the pupil, changes shape as it focuses.
A cataract, a clouding of the typically clear lens caused by aging, is the most frequent lens condition that can cause double vision. Cataracts can be removed in an outpatient procedure by eye specialists.
Eye Muscle Issues Cause Double Vision
Six muscles in the eye socket control the movement of your eye up and down, to each side, and in rotation. Extraocular muscle problems include weakening or paralysis, preventing one eye from moving in sync with the other. Issues with eye muscles include:
Graves’ illness is a thyroid disorder that affects eye muscles and causes double vertical vision (one picture appears over the other).
Strabismus (misaligned eyes) is caused by a weaker or paralyzed eye muscle that stops the eyes from properly aligning.
Nerve Issues Cause Double Vision
To control eye movement, some cranial nerves connect the brain to the eye muscles. The following conditions can cause double vision through damage to these cranial nerves:
Diabetes is a metabolic condition that affects your body’s capacity to process blood sugar and nerve damage.
Guillain-Barre syndrome is a nerve disorder characterized by early symptoms in the eyes that cause muscle weakness.
Myasthenia gravis is an autoimmune condition in which the immune system assaults the neuromuscular connections that control eye movement.
Multiple sclerosis is a chronic neurological condition that affects the central nervous system, potentially causing nerves that govern eye movement.
Brain Issues Cause Double Vision
Several parts of the brain process visual information transmitted by nerves from the eyes. Double vision can occur if these areas are damaged by sickness or injury. Some of the brain diseases that might cause double vision are as follows:
- Aneurysm of the brain
- Tumor of the brain
- Migraine migraine
- Internal brain pressure caused by bleeding, infection, or trauma
- Stroke
Giant Cell Arteritis Causes Double Vision
Giant Cell Arteritis, also known as Temporal Arteritis, is a condition in which the arteries near the temples become inflamed, resulting in decreased blood flow. When the blood flow to these vessels, which are important for eye sustenance, is diminished, a condition known as anterior ischemic optic neuropathy can occur. Other symptoms and vision problems include:
- Vision Impairment
- Vision hazard
- Doubtful vision
- Dizziness
- Chronic headaches
- Fatigue
Treatment For Double Vision
Once the reasons for double vision are identified, your doctor may be able to anticipate how long the double vision will remain. Some cases resolve on their own, but in others, the double vision may persist.
The doctor will try to provide remedies to reduce the double vision based on this information. One method is to restrict vision in one eye. This can be accomplished by using an eye patch or scotch tape to cover eyeglass lenses.
Temporary prisms can sometimes be used to reduce double vision, depending on the particular pattern of irregular eye movements. Permanent prisms can be crushed into the lenses of eyeglasses if they are particularly effective. Finally, if double vision has become a persistent condition (with no further improvement in roughly 12 months), surgery to alter the location of the eye muscles can be undertaken.
Book an appointment now to answer all your queries. You can book an appointment with the top ENT Specialists in Karachi through Marham by calling Marham helpline: 0311-1222398 or by online booking facility through the website or Marham mobile app.
Frequently Asked Questions(FAQs)
1- Should I be concerned about my double vision?
Long-term or recurring double vision should necessitate an immediate appointment with your eye doctor to ensure no major underlying condition. You have double vision when you stare at one item yet see two pictures, also known as diplopia.
2- Does anxiety cause double vision?
Hyperventilation is another anxiety symptom that can cause double vision. Hyperventilation occurs when you breathe too quickly, and it might cause blood to cease flowing as efficiently in your brain. This constricts the blood vessels, which can cause vision difficulties such as double vision.
3- What is the most common cause of double vision?
A cataract, a clouding of the typically clear lens caused by aging, is the most frequent lens condition that can cause double vision. Cataracts can be removed in an outpatient procedure by our eye specialists.
