Strabismus and Amblyopia: Differences and Similarities

young doctorAmblyopia is a condition in which there is poor vision in the eye which did not develop normal sight during early childhood. This condition is commonly known as lazy eye. It is normal for only one eye to be affected but it can happen to both eyes.


Amblyopia can be caused by strabismus or squint eyes. It is an imbalance in the positioning of the two eyes. The eyes can cross in (esotropia) or turn out (exotropia). The child uses only the better eye for vision as the crossed eye turns off to avoid “double vision” and resulting in the crossed eye failing to develop good vision.

Unequal focus can cause amblyopia. Unequal focus is a condition where one eye is more nearsighted or farsighted than the other eye. This can be corrected by the wearing spectacles.

Cataract may lead to poor vision. Cataract is a disease there is clouding of the clear lens in the eye. Treatment is necessary to remove the cataract.


Treatment should preferably be carried out when the child is before eight years old. There are generally two methods used.

Patching: A patch is worn over the strong eye so that the child is forced to use the weak eye. The patch is worn over a period of a few weeks to a few months depending on the severity of the condition and the progress of the child.

Medication: This method involves dilating the strong eye with medication. This kind of dilating drugs temporarily blurs the vision plus the child will be forced make use of the fragile eye.


Strabismus is a condition in the eye where the visual axes of both eyes are certainly not aligned adequately as would be the case commonly. Both eyes seem to be looking in a very different way. Simply explained, it will be when both eyes can’t focus adequately, either due to defect from the ocular muscle groups or due to brain’s failure to organize their movements.


The sources of Strabismus try to portion it directly into two key types: Paralytic Strabismus and also Non Paralytic Strabismus. Paralytic Strabismus is attributable to the defect from the cranial anxious feelings connecting to the eye. The anxious feelings most vulnerable to the lesion formation are cranial sensation problems III (oculomotor), IV (trochlear) and also V (abducens). But it’s not the result in in the majority of the cases.


The symptoms of Strabismus are clear and also obvious. If both eyes usually do not seem to be coherent within their movement plus the gaze of both eyes seriously isn’t coordinated and in a direction, one is clearly being affected by Strabismus. One particular eye within victims of Strabismus will probably always perform normally, while the other eye is targeted on another direction, to the outside, inward, further up or downwards.


The condition of Strabismus can be diagnosed by simply an optometrist, an optician or maybe an ophthalmologist or even a medical doctor specializing in eye and diseases. The medical diagnosis is finished by conducting a simple include test. The trouble will likely be Strabismus if your vision in the defective eye is totally normal when the dominant eye is covered.


The essence the treatment of Strabismus is to ensure the affected person gets typical binocular eyesight. However, since the condition involves danger of loss of sight or amblyopia, it is treated by simply making the person wear an eye patch within the dominant and also normal eyes, so that the weaker eye catches up gradually. This is among the oldest management techniques for Strabismus.