Aspheric lenses are mainly used, which are manufactured with higher-than-average eccentricity.
This unique lens structure creates multiple focal points, which is utilized for presbyopia correction.
Additionally, bifocal lenses can also be used for presbyopia correction, but these use an alternating
near-far viewing method, making lens fitting tricky and intermediate distance vision can be problematic.
Sky Eye Clinic Keratoconus Lens Feature 1
Sky Eye Clinic uses A65 for mild keratoconus, A8/A9 for moderate keratoconus, and A10 for advanced keratoconus. For eyes where rigid-type special spherical lenses don't fit, we use soft lenses for keratoconus (Kerasoft) for correction, so successful lens fitting can be achieved for any keratoconus patient.
