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A Gaze-Contingent Display Framework for Perceptual Learning Research with Simulated Central Vision Loss

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Eye disorders in old people.

Mohammad Khalaj¹, Ameneh Barikani, Hafez Ghasemi

¹Qazvin University of Medical Sciences, Qazvin, Iran. mohammadkhalaj82@yahoo.com

Global Journal of Health Science

|January 4, 2013

Summary

This study found that refractive errors are highly prevalent in older adults in Qazvin, Iran, affecting nearly all participants. These common vision problems significantly impact the elderly population's eye health.

Area of Science:

Ophthalmology
Public Health
Geriatrics

Background:

Visual impairment is a significant public health concern affecting the elderly population.
Prevalence studies are crucial for understanding and addressing vision issues in aging demographics.

Purpose of the Study:

To determine the prevalence of visual impairment in middle-aged and elderly individuals in Qazvin, Iran.
To identify common eye disorders and their prevalence in this demographic.

Main Methods:

A cross-sectional study involving 446 participants aged over 50 in Qazvin, Iran.
Data collection included questionnaires on demographics and medical history, followed by comprehensive ophthalmological examinations.
Best corrected visual acuity, refractive errors, and various eye conditions were assessed.

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Main Results:

Refractive errors were found in 96.4% of participants, with hyperopia (45.9%), myopia (33.6%), and astigmatism (16.8%) being most common.
Significant visual acuity reduction (less than 7/10) was observed in 36.2% of eyes.
Other prevalent conditions included eyelid problems (31.1%), eye dryness (27.3%), and discharge (28%).

Conclusions:

Refractive errors, cataract, and amblyopia are the primary eye disorders affecting the elderly in Qazvin.
Addressing refractive errors is critical for improving vision and quality of life in the aging population.