Adult Strabismus (Crossed Eyes): What it is, Causes, Symptoms, Treatment

Adult Strabismus

What Is Strabismus?

Strabismus, also known as hypertropia and crossed eyes, is an eye misalignment in which one eye deviates inward (esotropia) toward the nose or outward (exotropia) while the other eye remains focused. Misalignment can occur in infants on occasion, especially if they are weary, but it should be corrected by three months of age. Uncorrected strabismus in children can progress to amblyopia, a condition in which the brain begins to reject signals produced by the weaker, misaligned eye, resulting in vision impairments.

What Is Adult Strabismus?

Adult strabismus (crossed eyes) occurs when your eyes are not properly aligned and point in opposite directions. One eye may be fixed on the road ahead, while the other turns in, out, up, or down. Misalignment can progress from one eye to the other. Strabismus impairs vision since both eyes must aim at the same area to see properly.

What Are the Types of Strabismus?

There are various types of strabismus. The two most typical are:

1. Accommodative esotropia

This occurs frequently in cases of uncorrected farsightedness and a genetic proclivity (family history) for the eyes to turn in. Because the capacity to focus is tied to where the eyes are directed, the extra focusing effort required to maintain sharp focus on distant things may cause the eyes to shift inward. Double vision, closing or covering one eye when gazing at something close, and tilting or twisting the head are all symptoms. This type of strabismus usually manifests itself in the first few years of life. This ailment is normally treated with spectacles, although it may also necessitate eye patching and/or surgery on one or both eyes’ muscles.

2. Intermittent exotropia

This type of strabismus occurs when one eye fixesates (concentrates) on an object while the other eye points outward. Double vision, headaches, difficulties reading, eyestrain, and closing one eye when viewing distant things or in bright light are some of the symptoms. Patients may have no symptoms, but others may observe the ocular deviation (difference). It is possible to develop intermittent exotropia at any age. Glasses, patching, eye exercises, and/or surgery on the muscles of one or both eyes may be used in treatment.

What Are the Symptoms of Adult Strabismus?

The following are the most prevalent strabismus symptoms:

  • Not looking in the same direction at the same time.
  • Eyes that do not move in unison.
  • In bright sunlight, squinting or closing one eye.
  • Tilting or turning the head to gaze at something
  • By always running into things. Strabismus interferes with depth perception.

What Ares the Causes of Adult Strabismus?

The majority of strabismus is caused by a problem with the neuromuscular control of eye movement. Our comprehension of these brain control areas is continually evolving. A issue with the actual eye muscle occurs less frequently.

  • Uncorrected refractive blunders
  • One eye has poor vision.
  • Cerebral palsy
  • The Down syndrome (20-60 percent of these patients are affected)
  • Hydrocephalus (a congenital disease that results in a buildup of fluid in the brain)
  • Tumors of the brain
  • Stroke (the leading cause of strabismus in adults)
  • Head injuries can harm the part of the brain that controls eye movement, the nerves that govern eye movement, and the eye muscles.
  • Problems with the nervous system
  • Grave’s disease (overproduction of thyroid hormone)

How Does Adult Strabismus Affect Vision?

The disorder known as strabismus, sometimes known as squint, occurs when the eyes are not correctly aligned. Since vision requires that both eyes be pointed in the same direction, this affects vision and causes symptoms like dual perception (seeing double images of any object) hazy vision.

The non-functional eye may lose visual power and sharpness if one eye is always dominant and the other is always out of alignment. You may feel headaches and double vision if your strabismus is less severe.

How Is Adult Strabismus Diagnosed?

To test for and diagnose strabismus, an eye exam is typically necessary. This exam is specialized to identify the focus and movement of the eyes, which are the defining characteristics of the condition. Early identification is crucial since untreated severe cases of strabismus can cause vision loss.

To identify between primary and acquired strabismus, a thorough history is used. The light reflex test, red reflex test, cover test, and uncover test are the four tests used to check for strabismus.

Treatments for Adult Strabismus

Prisms, vision therapy, eye muscle surgery, or spectacles are among possible treatments for strabismus. Early detection and treatment are generally key to successfully treating strabismus. There are numerous treatments available for strabismus patients to help with eye alignment and coordination.

1. Vision Therapy

The most successful and non-invasive treatment for strabismus is vision therapy, which can be used with or without corrective glasses. In a vision therapy program, the brain and neurological system that regulate the eye muscles are treated using eye exercises, glasses, and/or other therapeutic activities.

2. Exercising the Eye Muscles

You can learn techniques to help you concentrate both eyes inward from an ophthalmologist. If you suffer from “convergence insufficiency,” these exercises may be of assistance. When you read or use a computer up close, your eyes may not line up properly.

3. Prism Eyeglasses

A transparent, wedge-shaped lens that bends (refracts) light rays is known as a prism. Prisms can be added to eyeglasses or included into the lens itself. Some people with mild double vision can see one image, not two, with the aid of prisms.

4. Toxin from Botulinum

This medication may occasionally be administered as an eye injection to treat strabismus. The muscles that prevent your eyes from correctly aligning are paralyzed. The result

Adult Strabismus Related FAQs

Q1. Can Strabismus In Adults Be Corrected?

Yes. Some of the same strabismus treatment options that are available to children can help adults. Prismic eyewear, specific eye-coordination exercises (fusional exercises), and surgery are all possible treatment options.

Q2. How do you fix strabismus in adults without surgery?

Start by extending an arm’s length pencil with the point facing away from you. Your attention should be drawn to the eraser or a letter or number on the side. Move the pencil slowly in the direction of your nose’s bridge. When your vision becomes blurry, quit trying to keep it in focus.

Q3. How do you fix crossed eyes naturally in adults?

Many times, eye exercises and other non-invasive techniques can be used to treat crossed eyes. The severity of the condition will determine how it is treated.

Q4. What is strabismus and why does it occur in adults?

The condition of having misaligned eyes is known as strabismus. It interferes with people’s capacity to function and may possibly make them dependent on others. Fortunately, it is frequently quite curable.

Q5. When Do the Symptoms of Adult Strabismus Appear?

A condition where the eyes cross, drift to one side, or are elevated or lowered than the other.

  • Double vision is one of the symptoms and it may appear suddenly or gradually.
  • Options for treatment include surgery as well as adding prisms or opaque films to spectacles.
  • Has to do with ophthalmology.


Infants and young children are most affected by strabismus, which typically manifests by the time a child is 3 years old. However, strabismus can also occur in older kids and even adults. In an older child or adult, the rapid onset of strabismus, particularly with double vision, may be a sign of a more serious neurological condition. To determine how well the patient has responded to treatment and to make any required adjustments, the patient will need to follow up with the doctor.

Because the extraocular muscles are not coordinated, people with strabismus have misaligned eyes. This may result in incorrect double vision. This can be fixed by our local ophthalmologist using a mix of vision treatment, surgery, and eyeglasses. To find the greatest medical care, visit

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