Correction of Presbyopia with Contact Lenses: Comparative Success Rates with Three Systems

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Abstract
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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