By Lyndon Jones

Dear Colleague,

We are conducting a retrospective chart review study at the Centre for Ocular Research & Education (CORE), formerly known as the Centre for Contact Lens Research (CCLR), at the University of Waterloo that will examine hydrogen peroxide lens care performance in academic and community practices.  This study will review records of contact lens (CL) patients seen in both university and private practice settings to compare the incidence of CL complications in users of hydrogen peroxide systems versus users of multipurpose solutions (MPS). 

This study will involve two academic sites (University of Waterloo, Canada and University of Alabama at Birmingham, USA) and four private practice clinical sites (two in the US and two in Canada).  Each private practice site will provide data from 150 records – 75 records of CL wearers using a hydrogen peroxide cleaning system and 75 records of CL wearers using a multipurpose cleaning system.  Charts will be reviewed to ensure they meet eligibility requirements prior to any data collection.

This study has been approved by the ethics review board both at University of Waterloo (ORE#: 22767) and at University of Alabama at Birmingham (IRB-300001212).  It will be conducted under a Waiver of Informed Consent and is designed to be in conformance with the ethical principles in the Declaration of Helsinki and with the ICH guidelines for Good Clinical Practice (GCP).  No patient identifiers will be collected or recorded by the researchers.

I am reaching out to you to inquire whether you would be interested in participating as one of our Canadian clinical sites.  We require practices that utilize an EMR system and prefer practices with high volume (>20%) peroxide system use for their soft lens wearers.  Preference will be given to sites actively involved in research studies or previous experience with research studies.  Preference will also be given to sites that report using grading scales or documented standard operating procedure for techniques and clinical grading.

There would be minimal disturbance to your practice.  The researcher would require access to a computer or device that can access the EMR, ideally in a space that will not disrupt staff or office flow. 

Your participation would provide no direct benefit to you apart from a small amount of remuneration, but the knowledge gained from this study will enhance our knowledge of contemporary contact lens care systems and their performance with modern lens materials.

If you are interested in helping us with this study, please complete the attached questionnaire (PDF) and we will be in touch when we have finalized the sites.  Should you have any questions regarding the study, please do not hesitate to contact me by either email or on the number below.

Best regards,

Lyndon Jones: PhD, FCOptom, FAAO, FCAHS, DipCLP, DipOrth, FIACLE, FBCLA

  • Director | Centre for Ocular Research & Education
  • University Research Chair
  • Professor | School of Optometry & Vision Science
  • Professor | Departments of Physics, Biology, Chemistry & Chemical Engineering (cross-appointed)

+1 519-888-4065

lyndon.jones@uwaterloo.ca