Early Presbyopia Program Phase 1 Population Characterisation
Research type
Research Study
Full title
Early Presbyopia Program Phase 1 Population Characterisation
IRAS ID
354245
Contact name
Michel Guillon
Contact email
Sponsor organisation
CooperVision International Limited
Duration of Study in the UK
0 years, 11 months, 18 days
Research summary
Presbyopia is the eye condition associated with aging of the eye from around 40 years of age when people cannot see clearly close-up with their distance vision correction. The process is slow and continuous over several years, the age of onset being influenced by people life exposure to UV and ethnicity. The way people react to this change in vision is highly variable, some tolerating some level of blur at near, others using coping mechanisms such as holding reading material at arm length or using extra-large fonts on their electronic devices, finally others consult their optometrist early on in the process. Overall, the first near vision correction is prescribed when presbyopia is well established and has been an issue for several years leading in a number of cases to adaptation difficulties to a new prescription.
To improve the management of early presbyopia it is essential to study the early presbyopic population to identify the factors contributing to the difficulty in transferring from single vision to multifocal vision (different far and near vision correction) correction and to differentiate between asymptomatic adaptors during the period preceding the use of a multifocal correction.
Very little is known to date regarding the process of progressing to presbyopia correction and answering the following questions:i. Is high vision satisfaction associated with low near visual demand?
ii. Is high vision satisfaction associated with superior visual function?
iii. Is high vision satisfaction associated with adaptation to the near environment challenge (e.g. use larger print, better lighting, etc.)?The rationale of the study is to identify differentiating factors by measuring a group of early presbyopes not yet using different vision corrections for near and far.
The study will involve a clinic visit to measure visual performance and eye characteristics and a series of remote questionnaires to characterise vision and ocular related symptoms in the participants habitual environment.REC name
London - Brent Research Ethics Committee
REC reference
25/PR/0578
Date of REC Opinion
30 May 2025
REC opinion
Further Information Favourable Opinion