What does the term "apical bearing" refer to?

The term "apical bearing" specifically refers to the relationship between the posterior curvature of a contact lens and the apex of the cornea. In this context, it indicates how the lens rests on the central point of the cornea, which is crucial for an appropriate fit and effective vision correction. When a lens has proper apical bearing, it indicates good alignment with the corneal surface at the apex, minimizing issues such as discomfort or improper vision correction that can occur with incorrect lens positioning. Proper apical bearing ensures that the lens performs its intended function effectively while also promoting eye health by maintaining appropriate tear film distribution underneath the lens.