A rigid lens showing apical touch is an indication of?

When a rigid contact lens shows apical touch, it indicates that the lens is fitting too flat on the cornea. In a flat fit scenario, the central portion of the lens is making contact with the highest point of the cornea, which is known as the apical area. This contact may lead to discomfort and has potential implications for ocular health, as it can restrict tear exchange beneath the lens and possibly lead to complications like reduced oxygen supply to the corneal epithelium.

In a flat fit, the lens does not create the proper clearance needed for the corneal surface, which is necessary for allowing tears and other fluids to circulate properly under the lens. As a result, it is important to evaluate lens fitting carefully to ensure adequate fitting which helps promote a healthy ocular environment. Understanding how different lens fits interact with the corneal shape is crucial for optimal lens fitting outcomes.