本发明涉及一种新优学多焦点聚氨酯镜片的制造方法,镜片表面面型采用三层椭圆形区域设计。第一区域屈光度,其具有基于矫正视力屈光不正用的处方的屈光度。第二区域非连续分布着多个彼此独立的凸起圆顶。第三区域非连续也分布着多个彼此独立的凸起圆顶。本申请的中心光学区为第一个椭圆区域,保证患者视远时的正常视觉要求,采用仿生和视觉中旁中心视觉的因素,中心区域采用椭圆形的设计,可以保障佩戴者中心区域的清晰视野;在第二区域和第三区域,采用非连续性的加光策略消除了近视患者的眼球的周边近视性离焦,降低了近视加深的刺激性因素,从而有效地延缓青少年近视的加深,佩戴者的舒适性明显增加。
The invention relates to a method for manufacturing a novel optimized multi-focus polyurethane lens. The surface shape of the lens employs a three-layer elliptical region design. A first area has thediopter based on the prescription for corrected visual acuity ametropia. A plurality of raised domes independent of each other are distributed in a second area discontinuously. And a plurality of mutually independent raised domes are distributed in a third area discontinuously. According to the invention, the central optical zone is a first elliptical area to meet the patient's normal visual requirement in a long sight manner. With the paracentral vision factor in bionic and vision fields, the central area employs an elliptical area so as to guarantee the clear view of the central area of thewearer. In the second area and the third area, the peripheral myopia defocusing of the eyeball of the myopic patient is eliminated by using the discontinuous light addition strategy, so that the irritating factor of myopia deepening is reduced and thus the deepening of myopia in adolescents is delayed effectively and the wearer's comfort is significantly improved.