The projection lens is the core component of DMD-based maskless lithography and its imaging quality directly affects transferal exposure pattern. Based on traditional system, we have designed diffractive optical element (DOE) aspheric surfaces to optimize refractive/diffractive hybrid system improve quality. We found that best effect obtained when DOE very close front group before diaphragm sys...

presbyopia is a major refractive challenge for the coming decades. a variety of surgical procedures like scleral expansion, zonal photorefractive keratectomy, and corneal inlay implantation have been investigated none have yet gained popular acceptance. implantation of intraocular lenses (iols) at the time of cataract surgery or refractive lens exchange provides another opportunity to tackle th...

Purpose. This study retrospectively analyzed the postoperative visual functions of myopic eyes implanted with multifocal intraocular lens (IOL) to evaluate the efficacy of multifocal IOL in highly myopic eyes. Methods. We studied 61 patients (96 eyes) who were implanted with multifocal IOL ZMA00 or ZMB00 (Abbott Medical Optics). The patients were stratified into two groups by axial length: 26 m...