BCLA CLEAR Presbyopia: Definitions

Abstract

Presbyopia is often the first sign of ageing experienced by humans. Standardising terminology and adopting it across the BCLA CLEAR Presbyopia reports, improves consistency in the communication of the evidence-based understanding of this universal physiological process. Presbyopia can be functionally and psychologically debilitating, especially for those with poor access to eyecare. Presbyopia was defined as occurring when the physiologically normal age-related reduction in the eye's focusing range reaches a point that, when optimally corrected for far vision, the clarity of vision at near is insufficient to satisfy an individual's requirements. Accommodation is the change in optical power of the eye due to a change in crystalline lens shape and position, whereas pseudo-accommodation is the attainment of functional near vision in an emmetropic or far-corrected eye without changing the refractive power of the eye. Other definitions specific to vision and lenses for presbyopia were also defined. It is recommended that these definitions be consistently adopted in order to standardise future research, clinical evaluations and education.

Publication DOI: https://doi.org/10.1016/j.clae.2024.102155
Divisions: College of Health & Life Sciences > School of Optometry > Optometry & Vision Science Research Group (OVSRG)
College of Health & Life Sciences > School of Optometry > Optometry
College of Health & Life Sciences
Aston University (General)
Funding Information: BCLA CLEAR™ Presbyopia was facilitated by the BCLA, with financial support by way of educational grants for collaboration, publication and dissemination provided by Alcon, Bausch + Lomb, CooperVision, EssilorLuxottica, and Johnson & Johnson Vision.
Additional Information: Copyright © 2024. The Authors on behalf of British Contact Lens Association. This is an open access article under the CC BY license (https://creativecommons.org/licenses/by/4.0/)
Uncontrolled Keywords: Accommodation,Extended depth of focus,Monovision,Multifocal lenses,Presbyopia,Progressive lenses,Pseudo-accommodation,Simultaneous vision,Ophthalmology,Optometry
Publication ISSN: 1476-5411
Last Modified: 02 Dec 2024 09:05
Date Deposited: 12 Jul 2024 13:08
Full Text Link:
Related URLs: https://www.sci ... 36704842400047X (Publisher URL)
http://www.scop ... tnerID=8YFLogxK (Scopus URL)
PURE Output Type: Article
Published Date: 2024-08
Published Online Date: 2024-04-11
Accepted Date: 2024-03-25
Authors: Wolffsohn, James S. (ORCID Profile 0000-0003-4673-8927)
Naroo, Shehzad A. (ORCID Profile 0000-0002-6373-7187)
Bullimore, Mark A.
Craig, Jennifer P.
Davies, Leon N. (ORCID Profile 0000-0002-1554-0566)
Markoulli, Maria
Schnider, Cristina
Morgan, Philip B.

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