Diagnosing Squint or Strabismus

Squint is the misalignment of the eye where each eye points in a different direction. This misalignment may be constant or intermittent. The deviation of the eye can be in any direction inward, outward, upward, or downward. The disorder can be unilateral (squint is in the same eye) or alternating.

Squint is also called strabismus can be a congenital defect or can occur later in life. Early diagnosis of the condition is important. Children who are diagnosed with a squint may develop poor vision in one eye (lazy eyes). Adults with the condition often have double vision. 

Strabismus occurs when the extraocular muscles (muscles that control the movement of the eye and eyelid ) do not work together. Other causes of the disorder in the brain where the part of the brain that coordinates eyes muscles does not function properly. 

Strabismus is classified by the direction of the eye turn into:-

  • Esotropia or inward turning of the eye
  • Exotropia or outward turning of the eye
  • Hypertropia or the upward turning of the eye
  • Hypotropia or inward turning of the eye

The two most common squints in adults and children are accommodating esotropia and intermittent exotropia. 


Symptoms of squint can be seen when the child is young. Babies and young children should be checked to prevent amblyopia which causes loss of vision and depth perception. Amblyopia or lazy eyes occur when one eye is slightly misaligned and your child’s brain stops communicating with the eye. Parents often find it difficult to detect if their child has a squint. Your child’s pediatrician can direct you to an ophthalmologist if they suspect your child has a squint. If your child shows any of the following symptoms book an ophthalmologist in Patna:-

  • When your baby is three months old their eyes wander outward all the time or cross inwards.
  • After 3 months one or both eyes wander outwards or cross in. 
  • Tilting of the head to line up their eyes to get them together or squinting one eye.


Experts are unsure about what causes squinting. Possible causes include problems in the eye muscle or in the nerves that transmit information to the muscles or the part of the brain that controls eye movement. Squinting can be a result of injuries. Risk of strabismus increases with:-

  • Strabismus is hereditary. People with parents or siblings have strabismus. 
  • People who have uncorrected hyperopia (farsightedness).
  • Medical conditions such as down syndrome, stroke, cerebral palsy, or head injury.


The best ophthalmologist in Patna will evaluate the patient’s medical history. A comprehensive eye examination and testing will diagnose strabismus. The doctor will focus on eye focus and movement. Some of the tests used to diagnose strabismus include:-

  • Vision acuity can determine how much of the vision is affected. It involves reading numbers and letters from a chart. Younger children and babies may need to follow and focus on moving objects. 
  • A refraction test determines the power required to compensate for any refractive error. 
  • Alignment and focus testing check your eye movement and focus.
  • Exam eye health the external and internal structure of the eyes is examined by the ophthalmologist near me. Eye drops may be used in this test.


The best ophthalmologist in Patna may treat your or your child’s squint in various ways. Some of these methods are:-

  • Eyeglasses or contacts lenses
  • Prism lenses are special lenses where one side of the lens is thicker than the other. 
  • Vision therapy involves a series of exercises designed to improve eye coordination and focus.
  • Eye muscle surgery where the length and position of the muscles around the eye are changed.

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