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Squint
SQUINT
Strabismus (Squint): Clinical Overview & Management
What is Strabismus?
Strabismus is a binocular vision disorder characterized by misalignment of the visual axes. The eyes fail to maintain coordinated fixation, resulting in one eye deviating while the other maintains primary gaze.
This condition may be:
- Constant or intermittent
- Unilateral or alternating
- Present from birth or acquired later
Untreated strabismus can result in sensory adaptations such as suppression and amblyopia.
Classification
Strabismus is classified based on the direction of deviation:
- Esotropia - Inward deviation
- Exotropia - Outward deviation
- Hypertropia - Upward deviation
- Hypotropia - Downward deviation
Further sub-classification includes accommodative, paralytic, restrictive, and sensory types.
Etiology & Risk Factors
Strabismus may arise due to:
- Extraocular muscle imbalance
- Cranial nerve palsies
- Uncorrected refractive errors
- Congenital neuromuscular disorders
- Genetic predisposition
- Prematurity or low birth weight
- Trauma
- Thyroid eye disease
- Post-surgical complications
Clinical Presentation
Patients may present with:
- Visible ocular misalignment
- Diplopia (more common in adults)
- Impaired stereopsis
- Head tilt or face turn (compensatory posture)
- Eye strain and fatigue
In pediatric cases, suppression mechanisms may mask diplopia but increase the risk of amblyopia.
Diagnostic Evaluation
Comprehensive assessment includes:
- Visual acuity testing
- Refraction
- Cover-uncover and alternate cover test
- Ocular motility evaluation
- Prism measurement of deviation
- Binocular function assessment
Neuroimaging may be indicated in acute or paralytic presentations.
Management Approach
Management is individualized based on age, type, and severity:
- Optical correction
- Occlusion therapy (patching)
- Vision therapy (selected cases)
- Prism correction
- Botulinum toxin injection
- Surgical alignment
Early intervention significantly improves functional and cosmetic outcomes.
Prognosis
With timely diagnosis and appropriate management, most patients achieve satisfactory ocular alignment and improved binocular function.
SIMPLE AWARENESS CONTENT FOR PARENTS
Squint in Children - What Parents Should Know
Squint, also called Strabismus, happens when both eyes are not looking in the same direction.
One eye may:
- Turn inward
- Turn outward
- Turn up or down
Sometimes it is always present. Sometimes it comes and goes.
Is Squint Serious?
Yes — especially in children.
If not treated early, squint can lead to lazy eye (amblyopia), where vision in one eye becomes weak permanently.
The earlier it is treated, the better the results.
Common Signs Parents Should Watch For
- One eye turning in or out
- Child tilting the head while looking at things
- Closing one eye in sunlight
- Frequent eye rubbing
- Complaints of double vision (in older children)
If you notice any of these signs, get your child’s eyes examined.
What Causes Squint?
- Weak eye muscles
- Power (number) in glasses not corrected
- Family history
- Premature birth
- Illness or injury
Can Squint Be Treated?
Yes. Treatment depends on the cause and may include:
- Glasses
- Eye patching
- Eye exercises
- Surgery (in some cases)
Many children improve very well with early treatment.
When Should You See a Doctor?
If your child’s eye looks misaligned even occasionally, do not wait.
Early eye check-ups protect your child’s vision for life.