ISSN:1040-5488    

出版商:OVID    

年代:2000

数据来源: OVID

ISSN:1040-5488    

出版商:OVID    

年代:2000

数据来源: OVID

ISSN:1040-5488    

出版商:OVID    

年代:2000

数据来源: OVID

ISSN:1040-5488    

出版商:OVID    

年代:2000

数据来源: OVID

ISSN:1040-5488    

出版商:OVID    

年代:2000

数据来源: OVID

ISSN:1040-5488    

出版商:OVID    

年代:2000

数据来源: OVID

ISSN:1040-5488    

出版商:OVID    

年代:2000

数据来源: OVID

ISSN:1040-5488    

出版商:OVID    

年代:2000

数据来源: OVID

摘要:

PurposeTo determine whether there is a need for second eye cataract surgery or whether cataract surgery in one eye provides sufficiently adequate vision.MethodsThe vision of 43 patients was assessed using a battery of clinical vision tests, performance-based functional vision tests, and quality of life questionnaires, both before and a few months after cataract surgery. Twenty-five patients underwent second eye surgery and 18 patients underwent first-eye surgery. To determine whether cataract surgery returned vision to normal levels, a control group of 25 subjects of a similar age with normal, healthy eyes was also assessed.ResultsOverall, greater improvements occurred in most aspects of vision after first eye surgery than after second eye surgery. However, second eye surgery provided similar improvements in mobility orientation and self-reported night driving to those after first eye surgery, and substantially greater improvements in stereoacuity and reductions in anisometropia.ConclusionsThe study provides additional evidence to support the need for second eye cataract surgery. Second eye surgery may be particularly important to improve mobility orientation and the avoidance of falls.

ISSN:1040-5488    

出版商:OVID    

年代:2000

数据来源: OVID

摘要:

PurposeThis study aimed to determine the eye movement parameter(s) that is primarily affected when fully sighted subjects use plus-lens magnifiers for reading.MethodsTwo forms of plus-lens magnifier were used: hand-held and spectacle-mounted. Eye movements were recorded using an infrared limbal reflection system as subjects read passages of text with and without the magnifiers. Data were compared for a young age group and an elderly (education-matched) age group.ResultsFor both age groups, a sawtooth pattern of eye movements was observed and reading speed was significantly (p = 0.0001) reduced when using the magnifiers compared with reading without. Forward saccade length decreased significantly (p = 0.0001) and time for retrace increased significantly (p = 0.0001), but fixation durations were unaffected. The form of magnifier had no significant effect on reading speed or eye movement parameters.ConclusionsThe reduction in reading speed that occurred when using the plus-lens magnifiers was primarily a result of decreased forward saccade length.

ISSN:1040-5488    

出版商:OVID    

年代:2000

数据来源: OVID