What is occlusion used for in vision correction?

Occlusion is a technique that involves obscuring or blocking vision in one eye to promote the development of the other eye, particularly in cases where there is a significant imbalance in visual acuity or alignment, such as in strabismus (crossed eyes) or amblyopia (lazy eye). By temporarily preventing the occluded eye from seeing, the brain is encouraged to strengthen the visual pathways and optical development of the weaker eye. This can help improve overall visual function and alignment over time.

The other options focus on different aspects of vision correction that do not relate to the specific technique of occlusion. Enhancing peripheral vision typically involves training or exercises rather than blocking vision in one eye. Improving coordination of eye images usually refers to therapies that help both eyes work together but does not involve occlusion. Correcting refractive errors, such as nearsightedness or farsightedness, generally requires lenses or surgical interventions rather than occluding an eye. Thus, occlusion specifically targets visual issues related to differential visual acuity and development between the two eyes.