Patient's question:
A friend of mine has a child whose vision has recently declined. After diagnosis, it was found to be third-degree esotropia with a visual acuity of only 0.5. I would like to inquire about the causes, timing, and treatment methods for this condition.Doctor's answer:
Strabismus refers to a condition where the optical axes of the two eyes are not aligned correctly, deviating from the inner, outer, top, or bottom. In normal individuals, binocular vision should be straight and parallel. When observing an object, the image of the object falls on the central fovea of both retinas, and the brain's fusion ability can merge the images seen by both eyes into one. Strabismus occurs when a patient with misaligned eyes fixates on an object. The image is located on the central fovea of the normal eye. Strabismus is located outside the central fovea, which leads to diplopia. Therefore, strabismus is not only an aesthetic issue but also an irreparable visual dysfunction and amblyopia if not treated in a timely manner.