Clinical evaluation of a five-zone refractive multifocal intraocular lens
| Autor: | Toshiyuki Nagamoto, Daijiro Kurosaka, Hiroko Bissen-Miyajima, Emiko Hara, Kazuno Negishi |
|---|---|
| Rok vydání: | 1996 |
| Předmět: |
Adult
Male Optics and Photonics medicine.medical_specialty Visual acuity genetic structures medicine.medical_treatment media_common.quotation_subject Visual Acuity Cell Count Intraocular lens Astigmatism Prosthesis Design Refraction Ocular Postoperative Complications Ophthalmology medicine Humans Contrast (vision) Intraoperative Complications Dioptre Aged Retrospective Studies media_common Aged 80 and over Lenses Intraocular Wound Healing business.industry Endothelium Corneal Phacoemulsification Middle Aged Multifocal intraocular lens medicine.disease eye diseases Sensory Systems Female Surgery sense organs medicine.symptom business Binocular vision Follow-Up Studies |
| Zdroj: | Scopus-Elsevier |
| ISSN: | 0886-3350 |
| DOI: | 10.1016/s0886-3350(96)80279-3 |
| Popis: | Purpose: To evaluate the clinical performance of a five-zone refractive multifocal intraocular lens (AMO, model MPC-25NB, Array®). Methods: We performed a retrospective clinical trial of 31 cataract patients (mean age 64.3 years). The parameters studied were intraoperative and postoperative complications, distance and near visual acuity, spectacle use, decreased number of corneal endothelial cells, contrast sensitivity, percentage of glare disability, near binocular vision, and depth of focus. Results: Intraoperatively, iris damage occurred in two eyes (4.2%), vitreous loss in one eye (2.1 %), and consecutive rupture of Zinn's zonule and vitreous in one eye (2.1 %). Postoperatively, posterior capsule opacification was observed in two eyes (4.2%), temporary intraocular pressure increase in one eye (2.1 %), and cystoid macular edema in one eye (2.1%). Uncorrected distance visual acuity of 20/40 or better was achieved by 34 of 37 eyes (91.9%) with less than 1.5 diopters of preoperative keratometric astigmatism; best corrected distance acuity of 20/20 or better was achieved by 41 of 45 eyes (91.1 %). Near visual acuity with distance correction of 20/40 or better was achieved by 29 of 43 eyes (67.4%). These data were compared retrospectively with data from control patients who received monofocal lenses, and no significant differences in the decreased number of corneal endothelial cells were found. Mean contrast sensitivities were within normal range for all spatial frequencies. Percentage of glare disability and near binocular vision were within normal limits. Conclusions: Eyes implanted with the five-zone refractive multifocal lens showed better near visual acuity than control eyes and compared favorably in other aspects of visual function, indicating that these lenses are effective and safe. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|