Overview
A new squint in an adult usually causes double vision because the mature brain cannot suppress the second image. Causes include nerve palsies (often related to diabetes or blood pressure), thyroid eye disease, injury, or decompensation of a childhood squint.
New double vision always needs prompt evaluation to find the cause. Long-standing adult squint without double vision can also be treated — alignment surgery is possible at any age.
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Common Symptoms
- Double vision
- Visible eye turn
- Head posture to avoid doubling
- Eye strain and difficulty reading
- Self-consciousness about appearance
Possible Causes
- Nerve palsy (diabetes, hypertension, others)
- Thyroid eye disease
- Decompensated childhood squint
- Injury
- Previous eye surgery
Risk Factors
- Diabetes
- Hypertension
- Thyroid disease
- History of childhood squint
When to Consult
New double vision or new squint warrants prompt assessment. Long-standing misalignment can be evaluated at any time.
Evaluation Process
- Full squint evaluation with diplopia charting
- Neurological screening
- Blood tests or imaging when indicated
- Binocular vision assessment
Available Management Options
- Treat the underlying cause where found
- Prisms for small deviations
- Botulinum toxin in selected cases
- Squint surgery for stable deviations
The right option for you depends on examination findings and will be discussed before any treatment.
Follow-Up Information
Depends on cause — nerve palsies are observed for recovery; surgical results are reviewed for stability.
Frequently Asked Questions
Discuss This with Dr. Khushbu Partani
Consultations at Shree Retina Eye Hospital, Raipur. Your requested date and time are subject to confirmation by the appointment team.
Medically reviewed by Dr. Khushbu Partani · Last reviewed: September 2026 — VERIFY REVIEW DATE WITH DOCTOR BEFORE PUBLISHING