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Contact the study team using the details below to take part. If there are no contact details below please ask your doctor in the first instance.

Contact Information:

Ms Deborah Moore
+44 (0)2072224224
dmoore@otg.co.uk


Study Location:

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Be Part of Research - Trial Details - Effect of uncorrected astigmatism on vision

Effect of uncorrected astigmatism on vision

Not Recruiting

Open to: All Genders

Age: Child

Medical Conditions

Myopia


This information is provided directly by researchers, and we recognise that it isn't always easy to understand. We are working with researchers to improve the accessibility of this information. In some summaries, you may come across links to external websites. These websites will have more information to help you better understand the study.


Astigmatism is an imperfection in the curvature of the eye's cornea or lens that causes blurry vision. The aim of this study is to find out whether the overall visual performance of the study contact lens with an astigmatic correction is better than the study contact lens without an astigmatic correction.

Start dates may differ between countries and research sites. The research team are responsible for keeping the information up-to-date.  

The recruitment start and end dates are as follows:

15 Aug 2022 01 Dec 2022

A single visit to the study clinic where the participants will be fitted with contact lenses and wear three different pairs of spectacles providing over-corrections (one without astigmatism and two with astigmatism) and their vision with each pair of spectacles will be assessed.


Children and adolescents aged 8-16 years old

You can take part if:



You may not be able to take part if:


To be eligible as a participant, each candidate shall be free of any ocular or medical condition that may affect the results of this study.

The following are specific criteria that exclude a candidate from enrolment in this study:1. Ocular anterior segment infection, inflammation, abnormality, or active disease that would contraindicate contact lens wear2. Newly prescribed (within the past 30 days) use of some systemic medications (such as antihistamines, decongestants, diuretics, muscle relaxants, tranquilizers, stimulants, anti-depressants, anti-psychotics, oral contraceptives) or new prescription eyedrops which is not rewetting/lubricating eyedrops for which contact lens wear could be contraindicated as determined by the investigator3. Monocular participants (only one eye with functional vision) or participants fit with only one lens4. Subjects with slit lamp findings greater than grade 2 or higher (e.g. oedema, infiltrates, corneal neovascularization, corneal staining, tarsal abnormalities, conjunctival, anterior segment inflammation) as per ISO 11980, any previous history or signs of a contact lens related corneal inflammatory event (past corneal ulcers), or any other ocular abnormality that may contraindicate contact lens wear at the enrolment visit5. History of herpetic keratitis, ocular surgery or irregular cornea6. Enrolment of the family members of the investigator, family members of the investigator’s staff, or individuals living in the households of these individuals


Below are the locations for where you can take part in the trial. Please note that not all sites may be open.

  • Ocular Technology Group - International
    66 Buckingham Gate
    London
    SW1E 6AU

The participants will be current contact lens wearers and they will use the study contact lenses under the control and care of the investigator. The study contact lenses are currently available on the market. The risks to participants are no greater than wearing their own contact lenses. In wearing the study contact lenses, they may experience an improvement in vision or comfort in a pair of contact lenses they could eventually purchase from their own practitioner.


The study is sponsored by CooperVision International Limited and funded by CooperVision.




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Read full details for Trial ID: ISRCTN28719734
Last updated 06 February 2024

This page is to help you find out about a research study and if you may be able to take part

You can print or share the study information with your GP/healthcare provider or contact the research team directly.