OTTER 1: Contact lens comfort study testing a new prototype lens

The objective of this study is to evaluate the performance of new prototype contact lenses, with particular focus on comfort.  These lenses have been modified to improve comfort with contact lens wear.

About the study

This study involves 5 study visits across a lens wear period of 2.5 weeks. The study visits are:

  • Visit # 1 – Screening visit to determine eligibility – 1.5 hours
  • Visit # 2 – Baseline measurements and dispensing of pair 1 study lenses – 1 hour
  • Visit # 3 – Follow up visit – 1 hour
    Washout period of up to 6 days where you wear your own glasses or contact lenses
  • Visit # 4 – Baseline measurements and dispensing of pair 2 study lenses – 1 hour
  • Visit # 5 – End of study visit and study exit  – 1 hour

Total in-visit time commitment – 5.5 hours

You will also be asked to complete 2 short questionnaires during the study (5 minutes in total).

The visits will include standard clinical procedures that you might encounter when you attend an eye exam.

Participant requirements

  • You are 18 years of age or older
  • You can be fit with the study contact lenses
  • You habitually wear soft, spherical contact lenses for at least 6 hrs/day, 3 days/week
  • You are willing to wear the study contact lenses for at least 8hrs/day, 5 days/week for the duration of the study
  • You own a pair of glasses that permit participation in daily activities, including safe working and driving


In appreciation of your time, you will receive $110 upon study completion.

Further information

If you have questions about this study or would like more information, please call us at 519-888-4742 or email us using the link below and mention the study name OTTER 1.

How to participate

If you are interested in participating, please create a volunteer profile at the link below and we will contact you with more information. If you are already a registered CORE volunteer, please contact us using the link below and mention the study name OTTER 1.

All studies conducted at CORE have been reviewed and received ethics clearance through a University of Waterloo Research Ethics Board.


Time Commitment

Start Date

End Date