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8.5.2 investigate technologies that are used to assist with the effects of…

- - - - Faster healing time
        
        – keyhole incisions, precise
      - Safety
        
        New technology developed and commonly carried out procedure
      - Improved vision
        
        96% of patients achieve 20/20 vision decreased reliance on eyeglasses increased QOL
    - - Complications
        
        sometimes incision damages corneal flap
      - Dry eye damaged corneal nerves due to lasers no reflex to lacrimate
      - Cost
        
        expensive up to thousands of dollars
- - - - shape of the
        lens used is determined by the visual disorder that needs correction.
  - - - can be corrected by wearing spectacles with concave lenses, which are thicker towards the
        outside and thinner towards the centre.
      - Hyperopia can be remedied by wearing spectacles with convex lenses, which are thicker towards
        the centre and thinner towards the edges.