Accommodation in young adults wearing aspheric multifocal soft contact lenses
| Autor: | Peter Unsbo, Anna Lindskoog Pettersson, Maria Nilsson, Linda Lundström, Marika Wahlberg Ramsay, Rune Brautaset, Robert Rosén |
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| Rok vydání: | 2011 |
| Předmět: | |
| Zdroj: | Journal of Modern Optics. 58:1804-1808 |
| ISSN: | 1362-3044 0950-0340 |
| DOI: | 10.1080/09500340.2011.618890 |
| Popis: | The aim of the present project was to investigate accommodative behavior in young adults and adolescents fitted with an aspheric multifocal (center distance) contact lens with focus on evaluating whether these lenses can be an alternative treatment for subjects in which a reduced level of blur and thereby accommodation in near vision is aimed at. Twenty normal subjects aged between 21 and 35 years participated in the study. Aberrometry was perfomed using a Zywave™ aberrometer, first on the uncorrected eyes of all subjects, and again while the subjects wore a multifocal contact lens with a +1.00 add. A Shin-Nippon N Vision-K 5001 Autoref-Keratometer was used to measure accommodative response with two different refractive corrections: (1) habitual spectacle correction only, and (2) habitual correction and a aspheric multifocal (center distance) contact lens. Four hours of adaptation to the lens was allowed. The lag when wearing only the habitual spectacles was compared with the lag while wearing both the ha... |
| Databáze: | OpenAIRE |
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