| 摘要 |
<p>An annular mask lens for the treatment of optical aberrations such as but not limited to night myopia, spherical aberration, aniridia, keratoconus, corneal scarring, penetrating keratoplasty, and post refractive surgery complication. The lens has an annular mask having an aperture larger than conventional pinhole contact lens. The aperture having a 'soft' inside edge and which mask has a gradually increasing transmissivity radially towards the outer edge of the mask.</p> |
