Patients with high riding rigid lenses often have which condition?

High riding rigid lenses are commonly associated with aphakia. When a patient is aphakic, it means that they have had the lens of the eye removed, usually due to cataract surgery. Without the natural lens, the eye often requires a lens to be positioned in a way that maintains proper vision and alignment. Rigid gas permeable lenses (RGPs) can sometimes ride higher on the eye due to the shape of the cornea and the fit of the lens.

Patients who are aphakic can experience difficulties with lens fitting; therefore, high riding lenses can be a common scenario as practitioners strive to find an optimal fit to provide clear vision. The design of the lens may be altered to accommodate this condition, leading to the lens sitting higher than usual.

The other options, while they may influence lens fitting or vision, do not specifically correlate with the phenomenon of high riding lenses to the same extent as aphakia.