Paralytic strabismus
One of the most complex problems in paediatric ophthalmology is paralytic strabismus. Unlike other forms of this condition, it is not simply caused by a muscular imbalance, but by a disruption in the function of the nerves that control eye movement.
Normally, eye movement is provided by three nerves:
- Oculomotor nerve — responsible for turning the eye toward the nose, up, and down
- Abducens nerve — responsible for turning the eye toward the temple
- Trochlear nerve — provides complex movements (e.g., simultaneously down and toward the temple)
When one of these nerves is damaged, the muscles it controls stop working.
This leads to a sharp limitation in eye mobility in a specific direction and causes pronounced strabismus. The causes of paralytic strabismus can vary widely — from congenital anomalies to consequences of birth trauma.
In addition to the cosmetic defect, paralytic strabismus can cause functional and other complications
- Inability to fix the gaze on an object
- Development of persistent amblyopia
- Severe underdevelopment of binocular vision and spatial perception
Our unique treatment method
What is the essence of our unique method?
Specialists at Crystal Vision clinics, under the leadership of Doctor of Medical Sciences, Professor Igor Erikovich Aznauryan, have developed and successfully apply an innovative surgical technique that fundamentally changes the approach to treating paralytic strabismus. Many clinics use methods that restore eye movement toward the nose but deprive it of the ability to move toward the temple.
It allows:
- Full restoration or significant improvement in eye mobility toward the nose
- Preservation of the eye's natural ability to move toward the temple
This breakthrough approach was presented by our surgeons at an international ophthalmology forum as early as 2009 and was recognised as the best work of the year. Since then, we have repeatedly shared our experience at leading global congresses (European Society of Strabismologists, American Association for Pediatric Ophthalmology, and others).
At what age should surgery be performed?
Surgical treatment is recommended as early as possible. A child's visual system is plastic and responds much better to any type of treatment.
The earlier the correct eye position and mobility are restored, the:
- More properly the child's visual system will develop
- Higher the chances of forming full binocular and stereoscopic vision
- Fewer the consequences for learning and overall development
