Improperly fitted contact lenses can lead to which ocular condition?

Improperly fitted contact lenses can lead to significant ocular complications, notably dry eye syndrome and corneal abrasions.

When contact lenses do not fit properly, they can disrupt the natural tear film that lubricates the eye surface. This disruption can lead to symptoms of dry eye syndrome, where the eye fails to produce sufficient tears or the tears evaporate too quickly. Symptoms may include discomfort, irritation, and a feeling of grittiness in the eyes.

Additionally, a poorly fitted lens can also cause corneal abrasions. This occurs when the edge of the lens rubs against the surface of the cornea, resulting in scratches or wounds that can be quite painful and may increase the risk of infections if not properly addressed.

While conjunctivitis is an ocular inflammation that can occur for various reasons, it is not directly caused by improper fitting of contact lenses in the same way that dry eye syndrome and corneal abrasions are. This makes dry eye syndrome and corneal abrasions more closely linked to the issue of improper lens fit, confirming that the combination of both a and b represents the potential conditions arising from such situations.