Specialties > Ophthalmology > Strabismus



What is strabismus?

Strabismus is the lack of alignment of the eyes.

If one eye muscles do not work together with the other eye strabismus occurs, ie, a real eye deviation commonly known as "cross-eyed look."

A loss of stereoscopic vision (depth) may be reversible depending on the patient's age and the type of strabismus.

Types of strabismus

Convergent strabismus: They are more frequent when the eyes deviate towards the nose.

Divergent strabismus: the eyes are deviated outward, are less frequent and annoying bright light of the sun, are controlled with glasses but most require surgery.

Vertical strabismus: the eye deviates upwards or downwards.

Strabismus Congenital: Present at birth and do not improve with glasses.

Treatment for Strabismus

  • Surgery: Surgery is safe, but the eyes are not always perfectly aligned after the first intervention and sometimes require more than one operation in order to put them straight at all.
  • Sunglasses: They affect the position by changing the person's reaction to the approach. Prisms change the direction of the light and therefore the images, which causes the change in eye position.
  • In certain cases can be corrected with eye exercises.



Normal eyes


Convergent strabismus


Divergent strabismus


Vertical strabismus

Strabismus is manifested primarily by an eye deviation, this deviation can be constant or intermittent, demonstrating at times or specific works. It can also detect some abnormal position or bad position of the head that is called torticollis. Other times it can be observed poor posture and decrease of AV visual eye, "lazy eye", double vision, miscalculation of distances and relays.

One of the most common eye conditions in children for a good time detection of the cause of strabismus by the specialist ophthalmologist will enable the development is carried out effectively.

The causes for strabismus can cause are multiple, from an eye that has a higher refractive error than the other causing a bad view of the brain and making the image and remove the eye deviates and defects high refractive in both eyes, a deprivation of the vision of one eye (congenital cataracts), primary defects of the eye muscles responsible for eye movements and even neurological diseases. In general we can say that the eyes that have poor eyesight tend to deviate, so it is very important to any suspected diversion of an eye, the visit to the specialist in ophthalmology and estrabologia.

It is possible that a baby in the first weeks show unusual movements of the eyes and intermittent deviations tend to disappear over time, as long as they do not have the present is important, since they can be signs of serious problems in the eye or elsewhere, by which time a diagnosis is important to start treatment as soon as possible. Generally, a deviation that persists beyond two months after birth is considered strabismus.

The diagnosis of strabismus can only be performed estrabòleg medical specialist, but the deviation of an eye at certain times is a sign of having an intermittent strabismus.

There are a component inherited strabismus, or what tends to be more common inherited cause that created this strabismus, which is important to do an exam if there is a family member suffering from strabismus.

Some types of strabismus may affect child development in depth perception, causing a more slow to walk and interact with things. In school age can affect the ability of reading and writing, so that a proper assessment of vision and motility are necessary if these problems are or have suspicions.

A true strabismus does not heal alone, always requires clinical and / or surgical according to the case. Sometimes there are cases that simulate or seem strabismus but in reality they are not, this is called "Pseudoestrabisme" and is usually due to the appearance and configuration of the eyelids and the bridge of the nose can disappear when growing child.

As mentioned, strabismus may be due to several factors, for which the specialist estrabòleg determine the cause and treat strabismus. Among the treatments there will be correction of refractive errors, occlusions eye surgery or injections of substances such as botulinum toxin.

The information on the web if not complement not replace the doctor-patient relationship. If in doubt consult with the referring physician.