Contact Lens Fitting In Keratoconus

Current fitting philosophy for these lenses attempts to fit with clearance over the cone apex.

Contact lens fitting in keratoconus. Soft contact lenses have a significant role in the treatment of keratoconus. The fitting of all rigid lenses in keratoconus requires keratometer readings spectacle refraction back vertex distance measurement specification of the back optic zone radius and total diameter. Current fitting philosophy for these lenses attempts to fit with clearance over the cone apex. A lens from a trial set is usually assessed or based on these measurements a trial contact lens can be ordered empirically.

Keratometry and corneal topography are important tools in the management of keratoconus and a guide in selecting the parameter for the initial trial lens indices 6 7 a trial lens diagnostic approach is necessary to achieve an acceptable contact lens fit in keratoconus patients but as the severity of keratoconus increases the corneal apex become steeper. For one scleral contact lens technology has revolutionized visual results in patients with keratoconus so even patients with the most severe keratoconic conditions can still obtain excellent. Our photograph shows a comparison of a scleral lens for keratoconus left and a regular rgp lens courtesy of ken pullum and the keratoconus group. Rely on an experienced kc lens fitter to select the best lens for your eye 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 lens fitting for keratoconus is part science and part art.

The fluroscein pattern becomes a guide to know the apex of the. Keratoconus management is the most cited reason for using scleral contact lenses. Mild and early cases can be managed with traditional non specialty soft contact lenses as long as the degree of corneal distortion is not too severe. If you have keratoconus your eyecare practitioner will advise you on the best form of.

They still require specialist fitting and are more readily available than full scleral contact lenses. Most specialty lens manufacturers offer their own scleral lens. Soft contact lenses have a significant role in the treatment of keratoconus. Pre requisite for the fitting.

Contact lens fitting in keratoconus can be made simpler and easier with these tools. One of the most common obstacles with these lenses is the development of a tight fitting lens which can cause corneal edema pain and difficulty removing the lens. There are also cases of such advanced keratoconus that there simply isn t a hybrid lens manufactured which can adequately clear the corneal apex.