What Are the Best Contact Lenses for Keratoconus? | 合法醫療器材資訊網

Generally,scleralcontactlensesareconsideredthebestcontactsforkeratoconus,thoughthereareexceptions.

Generally, scleral contact lenses[1] provide the best fit, comfort and visual acuity[2] for someone with keratoconus[3].

Scleral contacts are larger in diameter than conventional gas permeable (GP) contact lenses[4], which allows them to vault over even relatively large areas of distorted cornea[5], eliminating much of the irregular astigmatism[6] and other refractive errors[7] caused by keratoconus.

Also, when properly fitted, scleral contacts provide a more stable fit and are less likely to become dislodged from the eye during sports and other activities. (They fit more securely under the eyelids due to their larger size.)

However, the best type of contact lens for keratoconus can vary from person to person. In some cases, conventional GP contacts may be a better choice — especially if the wearer has a...