Where does the Medial Canthus occur in relation to the eyelids?

The medial canthus is a crucial anatomical landmark located on the nasal, or inner, side of the palpebral fissure, which is the opening between the upper and lower eyelids. It represents the point where the upper and lower eyelids meet at their inner corners. This area is significant because it houses the puncta, which are small openings that allow tears to drain from the eye into the nasal cavity. Understanding the position of the medial canthus is important in various ophthalmic procedures and assessments, especially when addressing conditions related to tear drainage or eyelid positioning.

The other options relate to different locations that are not correct with respect to the anatomical definition of the medial canthus. Recognizing the medial canthus and its placement is integral to properly discussing and understanding ocular anatomy and function.