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[Variables related to the first presbyopia correction].
J L García Serrano1, R López Raya, T Mylonopoulos Caripidis
1Servicio de Oftalmología, Hospital Universitario, Granada, España.
Archivos De La Sociedad Espanola De Oftalmologia
|November 1, 2002
Summary
The age of presbyopia onset is influenced by profession and pupil size. Farmers and housewives experience a later onset, while smaller pupils may delay presbyopia development.
Area of Science:
- Ophthalmology
- Optometry
Background:
- Presbyopia, the age-related loss of accommodation, affects visual function in individuals over 40.
- Understanding factors influencing the age of presbyopia appearance (AAP) is crucial for visual health management.
Purpose of the Study:
- To investigate the influence of refractive error, sex, iris color, profession, and pupil diameter on the age of presbyopia appearance (AAP).
Main Methods:
- A prospective study included 179 participants seeking their first optical correction for presbyopia.
- Participants had a refractive error of 1 diopter or less.
Main Results:
- Age of presbyopia appearance (AAP) was not significantly affected by refractive error, sex, or iris color.
- Profession showed significant AAP variations: farmers (51.76 years) and housewives (48.42 years) had later onset compared to service workers (46.15 years) and construction workers (47.54 years).
- Intense miosis (pupil < 2.5 mm) was associated with a later AAP (51 years) compared to normal pupil sizes (3-7 mm, 47.47 years).
Conclusions:
- Profession (farming, housekeeping) and miosis are key factors delaying the age of presbyopia appearance (AAP).
- A 1 mm reduction in pupillary diameter during near vision may delay AAP by approximately 1.53 years.