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Text File  |  1997-10-29  |  483b  |  18 lines
  1.                           BIFOCAL CONTACT LENSES
  2.  
  3. SIMULTANEOUS VISION
  4.  
  5.      Advantages of simultaneous vision bifocals:
  6.  
  7.         -near vision in any position of gaze
  8.         -easy to fit
  9.         -available in both hydrogel and RGP
  10.  
  11.      Disadvantages of simultaneous vision bifocals:
  12.  
  13.        -often considerable blur and flare 
  14.             (halos and streaks around bright objects)
  15.        -any decentration of central zone decreases vision
  16.        -low success rate
  17.  
  18.