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12 Cards in this Set
- Front
- Back
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Monovision Pros |
Easy Inexpensive Many lenses available May be able to wear only one lens Toric correction Works for ~70% of pts Not Pupil Dependent |
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Monovision Cons |
Little or no stereopsis No binocular "boost" in VA Night vision may be compromised Poor success in very early presbyopia Problems with intermediate in late presbyopia |
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Soft Bifocal Lenses Pros |
Stereopsis possible |
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Soft Bifocal Lenses Cons |
Shadows or double vision May not achieve both distance and near vision Pupil-size dependent Contrast loss in low illumination Night vision may be compromised |
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Aspheric Pros |
Intermediate possible |
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Aspheric Cons |
Often do not achieve both distance and near May increase eyes aberrations |
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Multi-Zone Concentric Pros |
Full add possible Large amount of light in near image |
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Multi-Zone Concentric Cons |
No intermediate Duel images can create diplopia |
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What to try for Early Presbyopia |
Try aspherics Compare range with distance CL or distance glasses MF CL should INCREASE near range Try Soflens or Frequency low adds |
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What to try for Mid to Late Presbyopia |
High add aspherics or AcuVue bifocal Often modified mono vision used |
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What is Modified Monovision? |
Most common use of soft MF CLs Wouldn't need to use modified mono vision if soft MF CLs provided great distance and near vision Used to: Provide intermediate vision Decrease diff. in power between eyes compared to MV Improve vision at distance and/or near |
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2 Common Clinical Scenarios for Modified Monovision |
One eye (usually distance) in a single vision lens and the other (usually near) in a bifocal CL -> this provides an intermediate "Mix and Match" bifocal CLs to weigh one eye toward distance vision and the other toward near vision -> can be binocular at intermediate |
