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Cataract Surgery

  • Melanie Corbett
  • Nicholas Maycock
  • Emanuel Rosen
  • David O’Brart
Chapter

Abstract

Modern cataract surgery aims not only to remove the cataract but to reduce the patient’s dependence upon spectacles postoperatively. In the eyes with regular corneas, this is best achieved using the keratometry measurements within the biometry device to calculate the strength of intraocular lens to use. However, in irregular corneas and following refractive surgery, the preoperative topography is valuable for selecting the most appropriate keratometry values to use in the nomograms and planning the incision.

Postoperatively, topography can be useful to investigate less desirable outcomes. It may identify peripheral corneal flattening associated with the incision or irregularity if sutures were used. It can confirm the corneal curvature in cases of refractive surprise.

Keywords

Corneal topography Cataract surgery Extracapsular Phacoemulsification Keratometry Biometry Astigmatism Incision Corneal sutures Tight sutures Loose sutures Refractive surprise 

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Copyright information

© Springer Nature Switzerland AG 2019

Authors and Affiliations

  • Melanie Corbett
    • 1
  • Nicholas Maycock
    • 2
  • Emanuel Rosen
    • 3
  • David O’Brart
    • 4
  1. 1.Imperial College Healthcare NHS TrustLondonUK
  2. 2.University Hospital Coventry and WarwickshireCoventryUK
  3. 3.ManchesterUK
  4. 4.Department of OphthalmologySt. Thomas HospitalLondonUK

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