Early presbyopia population characterisation
This study is investigating early presbyopia, a natural part of ageing where your eyes find it harder to focus on close objects. The aim is to understand why some people find it difficult to switch from single vision correction (like glasses for distance only) to multifocal lenses when their close-up vision starts to blur. Researchers are looking for people aged 40 to 50 who currently use single vision correction or no vision correction at all. Taking part involves a single visit to a clinic and then answering a few questionnaires online over 10 days. The study hopes to gather important information to help future patients with this common eye change.
At a glance
What is this study about?
This research project is all about 'early presbyopia'. You might not have heard that term before, but it's a very common change that happens to almost everyone's eyes as they get older, usually starting around age 40. It simply means your eyes start to find it harder to focus clearly on things up close, like reading a book or looking at your phone.
The main goal of this study is to understand why some people find it tricky to adjust when they need to start using special lenses (called multifocal lenses, like varifocal glasses or some contact lenses) that help with both distance and close-up vision. The researchers want to identify what factors might make this transition easier or harder for individuals. They also want to understand the differences between people who adapt well to these changes without many problems and those who struggle, even before they start using multifocal correction.
By gathering detailed information from people experiencing the very first stages of presbyopia, this study hopes to provide valuable insights. This extra knowledge could eventually help eye care professionals better advise and support people as their eyes change with age, making the process of adjusting to new vision correction smoother in the future.
Key takeaways
- Study explores early presbyopia (difficulty focusing up close).
- Aims to understand challenges with switching to multifocal vision correction.
- For people aged 40-50, using single vision correction or none.
- Involves one clinic visit and remote questionnaires over 10 days.
- No new treatments or medications; it's an observational study.
- Results could help improve future eye care for age-related vision changes.
Who may be eligible?
You might be able to take part if you are between 40 and 50 years old. You should either wear glasses or contact lenses just for distance vision, or not wear any vision correction at all right now. Your eyesight for distance, even with your current glasses or contacts if you wear them, needs to be reasonably good.
There are some reasons why you might not be able to join. For example, if you have certain eye infections, untreated dry eyes, or other serious eye conditions that affect the front of your eye. Also, if you're taking specific new medications that could affect your eyes or contact lens wear (if you use them), you might not be suitable. The study also can't include people who only have good vision in one eye.
The study team will check your eyes during the clinic visit to make sure they are healthy enough to take part and that you meet all the specific requirements for vision and eye health.
Could this study suit you?
Answer these quick questions to see if you may be eligible. This is a guide only — the research team makes the final call.
- Are you between 40 and 50 years old?
- Do you wear glasses or contact lenses only for distance, or no correction at all?
- Do you have generally good vision in both eyes (with correction, if you use it)?
- Do you have any severe or active eye infections or serious untreated eye conditions?
- Are you currently taking any new medications that might affect your eyes or contact lens wear (if applicable)?
What does participation involve?
If you decide to take part, you'll need to attend just one visit to a clinic. During this visit, the researchers will examine your eyes and ask you some questions about your vision. After this clinic visit, you'll be asked to complete a few questionnaires from home. These will be sent to you remotely (likely online) over the 10 days following your clinic appointment. The total time you'll be involved in the study, including the clinic visit and questionnaires, will be quite short, probably spread over about two weeks in total.
Potential risks and benefits
Locations (1)
- Ocular Technology Group InternationalCity onlyLondon, United Kingdom
Common questions
What exactly is 'early presbyopia'?
It's when your eyes start to find it harder to focus on close-up things, usually after age 40. It's a normal part of getting older.
Do I need to wear glasses or contact lenses already to join?
You can wear glasses or contact lenses just for distance, or you might not wear any correction at all for your vision.
How long will I be involved in the study?
You'll have one clinic visit, and then you'll complete some online questionnaires over the next 10 days, so the total involvement is brief.
Are there any medicines or treatments involved?
No, this is an 'observational' study. This means researchers will be looking at your eyes and asking questions, not giving you new treatments or medicines.
Who is paying for this research?
The study is funded by CooperVision International Limited, a company that makes contact lenses and other eye care products.
How to find out more
Deborah Moore
Always speak to your GP or specialist before deciding to take part in a study.
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