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Updated: Jun 28, 2025

Author Spotlight: Advancements in Refractive Surgical Correction for Presbyopia and Exploring Postoperative Visual Acuity
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BCLA CLEAR Presbyopia: Definitions.

James S Wolffsohn1, Shehzad A Naroo1, Mark A Bullimore2

  • 1College of Health & Life Sciences, Aston University, Birmingham, United Kingdom.

Contact Lens & Anterior Eye : the Journal of the British Contact Lens Association
|April 12, 2024
PubMed
Summary
This summary is machine-generated.

Standardizing terminology for presbyopia, the age-related loss of near vision, improves communication and understanding. Consistent definitions are crucial for research, clinical practice, and education regarding this common visual condition.

Keywords:
AccommodationExtended depth of focusMonovisionMultifocal lensesPresbyopiaProgressive lensesPseudo-accommodationSimultaneous vision

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Area of Science:

  • Ophthalmology
  • Vision Science

Background:

  • Presbyopia is a universal physiological process associated with aging.
  • It can cause functional and psychological distress, particularly for those with limited eyecare access.

Purpose of the Study:

  • To standardize terminology for presbyopia and related concepts.
  • To improve consistency in communicating evidence-based understanding of presbyopia.

Main Methods:

  • Defined presbyopia based on age-related reduction in focusing range and near vision clarity.
  • Defined accommodation and pseudo-accommodation.
  • Established other vision and lens-specific definitions for presbyopia.

Main Results:

  • A clear definition of presbyopia was established, considering functional near vision requirements.
  • Distinctions between accommodation and pseudo-accommodation were clarified.
  • Specific definitions for vision and lenses related to presbyopia were proposed.

Conclusions:

  • Consistent adoption of standardized definitions is recommended.
  • Standardization will enhance future research, clinical evaluations, and education on presbyopia.