People who suffer from thyroid disorders may experience both internal and external symptoms. For example, strabismus is a disorder in which the eyes do not line up in the same direction when focusing. This condition, also known as lazy eye, may be a result of hyperthyroidism.
New studies suggest that individuals who suffer from thyroid disorders may be at greater risk for developing strabismus, PressTV reports. The eye disease is common particularly among children. In order to counteract the condition, the brain learns to ignore the input from the "lazy" eye, which may lead to permanent vision loss.
The Centers for Disease Control and Prevention report that strabismus can cause the eyes to cross inwardly, called esotropia, or outwardly, which is known as exotropia. As a result, the eyes look in different directions and do not focus simultaneously on a single point.
"Studies have revealed that apart from genetics, tumors and eye injuries, thyroid diseases increase the risk of having lazy eyes," said Hossein Eslamian, an eye surgeon, quoted by the news source.
Eslamian also noted that hyperthyroidism is the most common thyroid disorder linked with various degrees of strabismus.
Early diagnosis may lessen the rate of complications and parents are encouraged to get children screened during infancy for thyroid hormone imbalances.