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CORRECTING PRESBYOPIA - PAGE 2 OF 4

Getting Started

  • Provide patient with all options, but emphasize bifocals
  • Assess patient motivation

Discuss with Patient:

  • Possible compromise in vision
  • May take a lens exchange and up to 6-8 weeks to fully adapt
  • Explain dynamics of the two types of GP presbyopic corrections
  • Simultaneous aspheric designs are similar to no-line spectacles
  • Translating (segmented) bifocal designs are similar to lined spectacles
  • Use topical anesthetic during the fit
  • Use diagnostic lenses when indicated
  • Apply fluorescein and a yellow filter over observation system to evaluate fitting relationship

Pattern observed without the use of yellow filter over observation system

Identical pattern with the addition of yellow filter; notice greater fluorescence

Other Considerations for Lens Selection

  • Lower adds are well suited for aspheric designs, higher add powers suited for segmented designs
  • Computer (intermediate) use is best with aspheric designs
  • Small and normal-size pupils best with aspheric designs
  • Athletes best with aspheric designs
  • Critical near vision best with segmented designs

Bottom lid below the lower limbus (>1mm) best suited for aspheric design

Bottom lid at the inferior limbus is suited for either aspheric or segmented design

Go to Page 3
 

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This page was last updated Wednesday, March 03, 2010.
 
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