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Anisometropia Profile in Elderly Population: Tehran Geriatric Eye Study
Hassan Hashemi1, Alireza Jamali2, Payam Nabovati3
1Noor Research Center for Ophthalmic Epidemiology, Noor Eye Hospital, Tehran, Iran.
Journal of Binocular Vision and Ocular Motility
|June 29, 2022
Summary
Anisometropia, an eye condition causing blurred vision, is prevalent in the elderly. This study found its prevalence increases with age and is linked to factors like cataracts and ocular biometry asymmetry.
Area of Science:
- Ophthalmology
- Geriatric Medicine
- Optometry
Background:
- Anisometropia, a condition where eyes have unequal refractive power, can lead to visual impairment.
- Understanding its prevalence in the elderly is crucial for timely intervention and management.
Purpose of the Study:
- To investigate the distribution and prevalence of anisometropia.
- To analyze the association of anisometropia with age, gender, and ocular biometry in a geriatric population in Tehran, Iran.
Main Methods:
- A study was conducted on 3237 individuals aged 60 years and above.
- Ocular biometry and refractive errors were assessed using specialized equipment.
- Anisometropia was evaluated at different diopter cut-points (0.50, 1.00, 1.50, 2.00 D).
Main Results:
- The mean anisometropia was 0.82 D, increasing with age, particularly in those over 80 years.
- Prevalence of anisometropia >1 D was 23.81% in the total population.
- Higher odds of anisometropia were associated with cataracts, myopia, and asymmetries in axial length and corneal diameter.
Conclusions:
- Anisometropia is highly prevalent in the elderly population.
- Age, gender, refractive error, cataracts, and ocular biometry asymmetry are significant factors influencing anisometropia.
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