New contact lens study (Study ID: BASSET)

What are we trying to learn?

Despite improvements in contact lens materials, many contact lens wearers commonly report symptoms such as discomfort by the end of the day. It has been suggested that daily disposable lenses could have benefits over frequent replacement (bi-weekly or monthly) lenses.  

The objective of this study is to evaluate and compare the performance of two daily disposable contact lenses in people who habitually use soft contact lenses.  

About the study

This study will be conducted over approximately 2 weeks. The study visits are:

Visit #1 & 2 (normally both visits are combined) – Screening visit to determine eligibility (1.25 hrs) anddispensing of study lenses (0.75 hrs) – 2 hours total

Visit #3 & 4 – (normally both visits are combined) – 1-week follow-up visit (0.75 hr) and dispensing of study lenses (0.75 hr) –  (1.5 hours total)

Visit #5 – 1-week follow-up visit and study exit. – (1 hour)

Total time commitment5.5 hours (time includes 4.5 hours for study visits plus 1 additional hour for at-home tasks)

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

What are the requirements?

  • You are at least 17 years of age.
  • You habitually wear contact lenses at least 8 hours/day, 5 days per week.
  • You anticipate no difficulty in wearing soft contact lenses for 12 hours/day.
  • You can be fit with the two study contact lenses in the powers available (-0.50 to -10.00 D).
  • You have not previously worn clariti 1 day or Precision 1 lenses.


In appreciation of your time, you will receive $20 per hour for attending study visits (4.5 hours) and for the additional hour for at-home tasks, for a total of $110 upon study completion. All study products are supplied at no cost. If you drive to your appointments, parking tokens will be provided.

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 email and mention the study name BASSET. You will be provided with all relevant study information prior to study enrollment and you are under no obligation to participate. 


Time Commitment

Start Date

End Date