Defocus-specific contrast sensitivity

Ying-Khay Nio

Research output: ThesisThesis fully internal (DIV)

1713 Downloads (Pure)

Abstract

This thesis describes contrast sensitivity measurements that were made in healthy control subjects, in patients who have undergone a cataract operation, and in patients who have been treated with refractive surgery. The study is innovative in that the measurements were performed not only under wellfocused (corrected for refractive errors) conditions, but also with different amounts of defocus. As a result it was possible to discuss depth of focus and, using a theoretical eye model, calculate the spherical and irregular aberrations that are present in the human eye. Such an approach made it practicable to show the differences between healthy control subjects and patients after a cataract extraction. There were also clear differences between the healthy control subjects and the patients who underwent refractive surgery and between the subgroups undergoing different forms of refractive surgery.
Original languageEnglish
QualificationDoctor of Philosophy
Supervisors/Advisors
  • Kooijman, Aart, Supervisor
  • Jansonius, Nomdo, Supervisor
Publisher
Print ISBNs9036722403
Publication statusPublished - 2005

Keywords

  • 44.95 oogheelkunde (geneeskunde)
  • Proefschriften (vorm)
  • Staar, Psychofysiologie, Afwijkingen, Gezichtsvermogen

Fingerprint

Dive into the research topics of 'Defocus-specific contrast sensitivity'. Together they form a unique fingerprint.

Cite this