CONTACT LENSES FOR MYOPIC EYES AND METHODS OF TREATING MYOPIA

摘要

A contact lens and a method for treating an eye with myopia is described. The contact lens includes an inner optic zone and an outer optic zone. The outer optic zone includes at least a portion with a first power, selected to correct distance vision. The inner optic zone has a relatively more positive power (an add power). In some embodiments the add power is substantially constant across the inner optic zone. In other embodiments the add power is variable across the inner optic zone. While in some embodiments the inner optic zone has a power designed to substantially eliminate lag of accommodation in the eye with myopia, in other embodiments, the add power may be higher.

主权项

1. A contact lens for myopia, the contact lens comprising an inner optic zone with a diameter of between 1 mm and 4 mm, a transition zone and an outer optic zone surrounding the transition zone, the outer optic zone having at least a portion immediately adjacent said transition zone with negative power, wherein the inner optic zone has an add power portion with a substantially constant add power relative to the negative power of between 0.5 diopters and 4 diopters inclusive, and wherein the transition zone occupies a radial distance of 0.5 mm or less.