Types Of Contact Lenses For Keratoconus
Rigid gas permeable rgp or gp contact lenses are primary option for correcting kc vision.
Types of contact lenses for keratoconus. Soft contact lenses for keratoconus. The needs of each individual is carefully weighed to find the lens that offers the best combination of visual acuity comfort and corneal health. Contact lenses for kc. Hybrid contact lens options for patients with keratoconus include synergeyes kc clearkone and ultrahealth.
Rgp rigid gas permeable contact lenses these lenses also known as hard contact lenses are not as flexible as soft lenses. Generally scleral contact lenses provide the best fit comfort and visual acuity for someone with keratoconus. Contact lenses in the treatment of keratoconus. Ultrahealth lenses are the most advanced hybrid lens.
The rigid lens masks the underlying irregular cornea and functions as the new refractive surface of the eye with the tear film filling in the space between the back of the contact lens andthe front of the eye. Combination of hard and soft contact lenses piggyback hybrid. In cases of early keratoconus a standard gp lens may be used. Rigid defines the type of lens.
Gas permeable contact lenses rgp or gp rgp rigid gas permeable contact lenses are the most widely used method of improving vision in patients. Scleral contact lenses are large diameter lenses that provide clear and comfortable vision for keratoconus patients because the lenses do not actually touch the cornea. Scleral contact lenses for keratoconus many optometrists and ophthalmologists recommend scleral contact lenses for a variety of hard to fit eyes including eyes with keratoconus. Scleral contacts are larger in diameter than conventional gas permeable gp contact lenses which allows them to vault over even relatively large areas of distorted cornea eliminating much of the irregular astigmatism and other refractive errors caused by keratoconus.
Instead scleral lenses vault over the entire corneal surface resting on the white portion of the eye known as the sclera. Depending on the severity of keratoconus shape of your eye and personal details one type of lens may be better suited than another. They are usually used to correct the greater amounts of astigmatism or corneal irregularities present in keratoconus giving better vision than either glasses or soft contact lenses.