Correction of presbyopia with contact lenses: comparative success rates with three systems.
In a study designed to compare subjective success rates of three presbyopic contact lens systems, 200 presbyopes were fitted with monovision (MV), a pair of concentric center-near lenses (CN pair), or a combination of center-near/center-distance concentric lenses (CNCD). Overall, 112 subjects (56% of those fitted) successfully wore at least one lens system for a minimum of 3 months. MV was the most successful system (67% success); disrupted stereopsis was not a significant reason for failure with this system. The lower success rates with the two concentric bifocal systems (CN pair 42%, CNCD 37%) could be attributed to the greater visual compromise required with these lenses.
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A P
AP
School of Optometry, University of New South Wales, Kensington, Australia.
Holden
B A
BA
Hine
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NA
D000328:Adult; D000367:Age Factors; D000368:Aged; D003261:Contact Lenses; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D055095:Optics and Photonics; D011305:Presbyopia / Q000628:therapy*; D011379:Prognosis; D012030:Refractive Errors / Q000209:etiology; D011795:Surveys and Questionnaires; D015349:Vision, Monocular; D014792:Visual Acuity