Clinical Trial: How Astigmatism Influences Corneal Biomechanics and Intraocular Pressure

Study Status: Completed
Recruit Status: Completed
Study Type: Observational

Official Title: Impact of Preoperative Astigmatism on Corneal Biomechanics and Accurate Intraocular Pressure Measurement After Micro-incision Phacoemulsification

Brief Summary: The aim of the study was to identify whether preoperative corneal astigmatism can influence corneal biomechanics and the assessment of intraocular pressure (IOP) following micro-incision phacoemulsification.

Detailed Summary:
Sponsor: Medical Universtity of Lodz

Current Primary Outcome: change of corneal compensated IOP (IOPcc) [ Time Frame: Parameter measured preoperatively and one day, one week, one month postoperatively ]

Intraocular pressure and corneal biomechanical properties were measured using an Ocular Response Analyzer.


Original Primary Outcome: Same as current

Current Secondary Outcome:

  • change of corneal hysteresis (CH) [ Time Frame: Parameter measured preoperatively and one day, one week, one month postoperatively ]
    Intraocular pressure and corneal biomechanical properties were measured using an Ocular Response Analyzer.
  • change of corneal resistance factor (CRF) [ Time Frame: Parameter measured preoperatively and one day, one week, one month postoperatively ]
    Intraocular pressure and corneal biomechanical properties were measured using an Ocular Response Analyzer.
  • change of Goldman-correlated IOP (IOPg) [ Time Frame: Parameter measured preoperatively and one day, one week, one month postoperatively ]
    Intraocular pressure and corneal biomechanical properties were measured using an Ocular Response Analyzer.
  • change of waveform score (WS) [ Time Frame: Parameter measured preoperatively and one day, one week, one month postoperatively ]
    Intraocular pressure and corneal biomechanical properties were measured using an Ocular Response Analyzer.


Original Secondary Outcome: Same as current

Information By: Medical Universtity of Lodz

Dates:
Date Received: May 17, 2017
Date Started: May 1, 2005
Date Completion:
Last Updated: May 19, 2017
Last Verified: May 2017