Squint Eye Treatment in Delhi
What is Squint (Strabismus)?
Squint is a misalignment of the two eyes to an extent that both the eyes look in different directions. This misalignment may be constant, being present throughout the day, or it may appear sometimes and the rest of the time the eyes may be straight. It is a common eye disorder seen among children. But it may also occur in adults.
What causes Squint?
The exact cause of Squint is not really known. The movement of each eye is controlled by six muscles. Each of these muscles act along with its counterpart in the other eye to keep both the eyes aligned properly. A loss of coordination between the muscles of the two eyes lead to misalignment. This misalignment may be the same in all directions of gaze, or in some conditions the misalignment may be more in one direction of gaze, for instance, Squint due to nerve palsy.
Sometimes a refractive error ‘hypermetropia’ (long sight) may lead to inward deviation of the eye. Poor vision in an eye because of some other eye disease like prolonged cataract, etc., may also cause the eye to deviate. Therefore it is important in all the cases of Squint, especially in children, to have a thorough eye check up, to rule out any other cause of vision loss.
What is Binocular Vision?
Under normal circumstances, when both the eyes have good vision and they are aligned properly, they focus on the same object. Each of the eyes send pictures of the same object, viewed from a slightly different angle. These two images reach the brain, where they are fused to form a single three-dimensional picture with depth perception. This is known as ‘Binocular Single Vision’.
Problems Associated with Squint?
When the eyes are not aligned properly, each of the eyes is focusing on a different object and accordingly it sends signal to the brain. These two different images reaching the brain lead to confusion and may have either of the two effects:
A child would ignore the image coming from the deviated eye, and thus would see only one image. But in the process, he loses the depth perception. This suppression of the image from the deviating eye results in poor development of vision in this eye, which is known as Ambylopia or Lazy Eye. Squint in children should never be ignored or it may lead to permanent damage to the visual apparatus.
Since an adult cannot ignore the image from either eye, and therefore has double vision. This can be very annoying and often interferes with normal day to day work.
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Common Symptoms of Squint
In a child, the parents may notice the deviation of eyes. It is important to remember that the eyes of a newborn are rarely aligned at birth. Most establish alignment happens at 3-4 weeks of age. Therefore, Squint in any child who is minimum one month or older must be taken seriously and should be evaluated by an experienced ophthalmologist.
Adults may experience double vision, or misalignment of the eyes.
How is Squint Diagnosed?
Squint is diagnosed by a skilled ophthalmologist. He or she would do a few special tests to confirm if there’s Squint, and would try and find out the cause to quantify the amount of deviation. In some cases there may be a false appearance of Squint due to broad nasal bridge in a child. An ophthalmologist will be able to differentiate between a true Squint and false Squint.
Treatment for Squint
The treatment of Squint is important to:
- Preserve or Restore Vision
- Straighten the Eyes
- Restore Binocular Cision
First of all, the eyes are checked to see if they have any refractive error that may be responsible for Squint. If there is any significant refractive error present, it is treated first. In some cases (accommodative Squint) a correction of refractive error is all that may be required to treat Squint.
Next the eyes are checked for presence of Amblyopia or Lazy Eye before the surgery of Squint takes place. The parents are explained about the importance of this treatment, as their cooperation is very crucial for the success of this treatment.
Squint is treated by surgery of either one or both the eyes, depending on the deformity. The surgery involves weakening or strengthening of the relevant muscles to restore the balance and to get a good coordination. In some cases with double vision, prisms may be added in the glasses to ease the symptoms.
When should Squint be treated?
In a child, the treatment of Squint and any associated Amblyopia should be started as soon as possible. Generally speaking, the younger the age at which the condition is treated; the better is the chance of recovery of vision. Remember that the child would never grow out of Squint. A delay in treatment may decrease the chances of getting a good alignment and vision.
Are glasses necessary?
Definitely yes, surgery cannot replace the need for glasses. If the child has significant refractive error, glasses are a must. In some cases wearing glasses may correct Squint. In other cases, wearing glasses help the eyes to see clearly. This clear vision is very important for the treatment of Amblyopia and also for maintaining the coordination of eyes, once they have been aligned by surgery.
At Hitech eye centre we have super specialist who are experts in management of Squint both none surgically.
If you or someone near to you has Squint and requires management and treatment – Contact Us