What are we trying to learn?
Specific cells found in the cornea (the front surface of the eye) play an important role in keeping our eyes healthy.
The purpose of this study is to measure these specific cells in participants who normally wear contact lenses. We are looking for participants who experience discomfort while wearing their lenses, and those who do not experience any discomfort with lens wear.
About the study
You will be wearing your own contact lenses throughout this study. This study will be conducted over approximately 3 weeks. There are 10 study visits, which occur on 6 study days. The study visits are:
o Visit #1 – Screening visit to determine eligibility (45 minutes)
- Day 2: No contact lens wear on this day (1.5 hours total)
o Visit #2 – Eye imaging (45 minutes)
o Visit #3 –Eye imaging 8 hours after Visit 2 (45 minutes)
- Day 3: Contact lenses to be worn for 1 hour prior to appointment
o Visit #4 – Eye imaging (45 minutes)
- Day 4: Contact lenses to be worn for 4 hours prior to appointment
o Visit #5 – Eye imaging (45 minutes)
- Day 5: Contact lenses to be worn for 8 hours prior to appointment
o Visit #6 – Eye imaging (45 minutes)
- Day 6 Contact lenses to be worn all day (1.75 hours total)
o Visit #7 – Eye imaging 1 hour after lens insertion (30 minutes)
o Visit #8 – Eye imaging 4 hours after lens insertion (30 minutes)
o Visit #9 – Eye imaging 8 hours after lens insertion and study exit (45 minutes)
Total time commitment – 6.5 hours
The visits will include standard clinical procedures that will touch your eyes 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 soft contact lenses at least 5 days per week, 8 hours per day
- You have worn contact lenses on a daily wear basis for the past 12 months
You will receive up to $130 for the completion of all study visits. If you drive to your appointments, parking tokens will be provided.
How to participate
If you are interested in participating, please complete and return the attached questionnaire to email@example.com and use the study code name SETTER as the email subject. If you have questions or would like more details, please call 519-888-4742. You will be provided with all relevant study information prior to study enrollment and you are under no obligation to participate.
Safety during COVID-19
We want to let you know that we have revised several of our protocols to keep participants and researchers safe during the pandemic, including enhanced cleaning and mandatory wearing of masks by everyone. Measures we have taken to reduce the risk of exposure to COVID-19 are explained in an “Information Letter: COVID-19 Risks for In-Person Research Study Visits” which we will ask you to sign in the event you participate.
Please note that you will be within 2m (6 feet) of the researcher during some or most of the study visit time. At all times, the furthest possible distance will be maintained.
Please note, if you are aged 60 and above, you are considered at a greater risk for severe illness from the COVID-19 virus.