Strabismus (Eye Turn) and Amblyopia (Lazy Eye) Affects Both Adults and Children
There is a common misconception that Strabismus and Amblyopia are conditions exclusive to children. However eye turns can occur just as frequently in adults.
Amblyopia or more commonly known as lazy eye is reduced best corrected vision in one eye. In other words, despite optimal correction the lazy eye is not seeing as good as the non-lazy eye.
The most common causes of amblyopia are:
- Strabismus: the brain ignores visual input from a turned eye leading to a lazy eye.
- Anisometropia: the two eyes have a big difference in prescription that the brain ignores visual input from the eye with higher prescription leading to a lazy eye.
- Deprivation: the brain ignores visual input from an eye with an opaque media leading to a lazy eye. The most common cause of an opaque media is congenital cataract.
The most common causes of strabismus in children are:
- Inefficient eye teaming and focussing ability
- Inadequate innervation to the eye muscles
The most common causes of strabismus in adults are:
- Persistent uncorrected strabismus from childhood
- Thyroid eye disease
- High blood pressure (early signs of stroke)
- High blood glucose ( sign of possible diabetes)
- Myasthenia gravis (autoimmune neuromuscular disorder)
If you notice any of the following signs and symptoms only recently, see our optometrist as soon as possible as it may indicate other systemic medical issues, which need further investigations.
- Sudden onset double vision
- Droopy eyelid
- Vertical double vision (images separated vertically)
- Unequal pupil size
How we can help Adults suffering from strabismus?
Whether a strabismus is residual or inconcomittant, a consultation with your local Eyecare kids optometrist/orthoptis can be very beneficial.
Residual strabismus can be identified and treated with Vision Therapy. With current research proving neural plasticity exists far beyond childhood, this form of treatment has become a viable and highly sought solution.
Inconcomittant strabismus, regardless of type, can be investigated, diagnosed and discussed with you. For issues such as nerve palsies, Eyecare kids can offer effective treatments options which help to resolve the double vision. Temporary prisms as well as more permanent prisms can be ground into glasses.
If the issue requires more invasive procedures such as surgery (for example in the case of an entrapped muscle following a blow out fracture) referral to the appropriate eye specialists can be organised.