Strabismus or Cross-eyes or Squint is a vision problem in which both eyes are not in alignment with each other. Though it is common in infants and children, it can occur at any age. Adults may also develop the condition.
Strabismus can be intermittent or constant.
Intermittent strabismus may worsen when the eye muscles are tired — late in the day, for example, or during the course of an illness. Parents may notice their infant's eyes wandering from time to time during the first few months of life, especially when the infant is tired. This occurs because the infants are still learning to focus their eyes and to move them in a coordinated fashion. Most babies outgrow this intermittent strabismus by the age of 3 months
Due to weak eye muscles or abnormal nerve impulses to the eye muscles
Strabismus can accompany some systemic illnesses like diabetes, high blood pressure, multiple sclerosis, myasthenia gravis or thyroid disorders
Blurred or poor vision due to cataract, corneal scars, glaucoma, refractive errors, optic nerve disease, retinal disease, tumors of the eye etc.
Brought about by injuries
Can accompany some systemic illnesses like diabetes, high blood pressure, multiple sclerosis, myasthenia gravis or thyroid disorders.
Eyes that look misaligned
Eyes that do not appear to move together
Frequent blinking or squinting, especially in bright sunlight