Category Archives: adults aged 17+

STINGRAY: Contact lens study for FRP lens wearers

The goal of this study is to compare the performance of a new, recently-launched contact lens (Total30 by Alcon) to an established product (Biofinity by CooperVision). Each lens will be worn by participants for one month.

About the study

This study consists of 3 in-office appointments over 2 months:

  • Visit 1 & 2 – Screening, lens fitting, baseline measurements and dispense of 1st study lens – 1.75 hours
  • Visit 3 – 1-month follow-up, dispensing of 2nd study lens – 1.25 hours
  • Visit 4 – 1-month follow-up and study exit – 1 hour
  • At-home questionnaires Complete at-home questionnaires on 3 days during each month – 1 hour

Total time commitment – 5 hours

What are the requirements?

To be eligible for this study, you must meet the following criteria:

  • Aged 17+
  • Currently wearing spherical soft contact lenses that are replaced bi-weekly or monthly
  • Are able to wear the study lenses for at least 6 days/week and 8 hours/day during the study
  • Contact lens prescription between -12.00 and +8.00 D

Reimbursement

In appreciation of the time involved, you will receive you will receive $20 per hour, or $100 upon study completion. Parking passes will be provided as required.

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.

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 corestudies@uwaterloo.ca and mention the study name STINGRAY. You will be provided with all relevant study information prior to study enrollment and you are under no obligation to participate.

BAGPIPES: Seeking DD hydrogel contact lens wearers

Seeking daily disposable contact lens wearers aged 17-60. Sleeping or napping in contact lenses limits the amount of oxygen reaching the eyes, making the cornea (front of the eye) swell more than it would during waking hours. In this study, we want to simulate sleeping in contact lenses by placing an eye patch over one eye that is wearing a contact lens during waking hours to measure the amount of swelling that occurs.

About the study

If eligible, you will be asked to follow the study instructions and attend the following visits:

  • Visit 1 (DAY 1) – Screening and study measurements – 2.75 hours
  • Visit 2 (DAY 2) – Baseline assessment and lens dispense – 1.25 hours
    *3 hour wait time between Visit 2 & 3 with eye patch covering one eye*
  • Visit 3 – Lens removal after 3 hr wait time and measurement taken (same day)
  • Visit 4 – Measurement taken after 0.5 hr from removal (same day)
  • Visit 5 – Measurement taken after 1 hr from removal (same day)
  • Visit 6 – Measurement taken after 2 hr from removal (same day)
  • Visit 7 – Measurement taken after 3 hr from removal then study exit (same day)
    *Visits 3-7 will take 4.5 hours

Total time commitment 11.5 hours over 2 days

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

What are the requirements?

  • To be eligible for this study, you must meet the following criteria:
  • Must be between 17-60 years of age
  • Have proof of eye examination within the last 2 years
  • Prescription between +4.00 and -8.00
  • No previous history of overnight contact lens wear
  • Have worn either spherical hydrogel or spherical silicone hydrogel contact lenses for the past 3 consecutive years with wearing daily disposable contact lenses of the same material type (hydrogel or silicone hydrogel, respectively) currently and at least in the past 6 months. 
  • Are currently not pregnant or nursing a child
  • Have NOT undergone eye surgery
  • Have a habitual contact lens wear schedule of at least 8 hrs a day, 5 days a week
  • Have a wearable pair of spectacles

Reimbursement

In appreciation of the time involved, you will receive up to $230. Parking passes will be provided as required.

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.

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 corestudies@uwaterloo.ca and mention the study name BAGPIPES. You will be provided with all relevant study information prior to study enrollment and you are under no obligation to participate.

SETTER: Seeking contact lens wearers for ocular imaging

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:

  • Day1:
    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

Reimbursement

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 corestudies@uwaterloo.ca 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.

CORGI: Seeking contact lens wearers with dry eye symptoms

What are we trying to learn?

The purpose of this study is to refit wearers of daily disposable contact lenses who currently experience symptoms of dry eye and discomfort during lens wear, with a different type of daily disposable contact lens.

We will evaluate the performance of your habitual lenses and the study lenses by taking measurements and asking you questions about your lens wearing experience.

About the study

If eligible, you will be asked to follow the study instructions and attend the following visits:

  • Visit 1 – Screening to determine eligibility– 1.5 hour
  • 1 week of habitual lens wear
  • Visit 2 – Baseline measurement & study lens dispense – 1 hour
  • 1 month of study lens wear
  • Visit 3 –1-month-follow-up visit & study exist – 1 hour


Total time commitment4.5 hours (3.5 hours of study visits plus 1 additional hour for at-home ratings)

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 are currently wearing daily disposable contact lenses at least 1 day a week and experience symptoms of dryness or discomfort
  • You are willing to wear daily disposable contact lenses at least 3 days a week for the duration of the study.
  • You are willing and able to follow instructions and maintain the appointment schedule

Reimbursement

In appreciation of your time you will receive up to $90. Parking passes will be provided as required.

How to participate

If you are interested in participating, please email corestudies@uwaterloo.ca with the subject line: CORGI.  You will be provided with all relevant study information prior to study enrolment and you are under no obligation to participate.