Monday 22 February 2016

Normal Age-Related Vision Changes

Shiv Shankar Daily's photo.

Normal Age-Related Vision Changes
Not all declines in vision quality are the result of disease; certain anatomical changes naturally occur as the eyes age.
The various internal and external structures of the eyes, which all work together to help people see clearly at various distances and under different lighting conditions, begin to wear down as people get older.
Common age-related vision complaints include:
"I can't see as clearly as I used to."
"I have difficulty seeing objects close up."
"Colors don't seem as vivid."
"It's getting more difficult to see in the dark."
"I'm less able to adapt to glare."
"I need more light to see."
The most significant age-related changes seem to occur in the lens and the pupil; these account for the majority of vision limitations people experience as they get older. The extent to which these changes affect vision varies a bit with each person. But regardless of the degree to which these changes affect you, you can compensate for them and help ensure they don't endanger your safety or make it difficult for you to enjoy life.
Age-Related Eye Change #1
The pupil becomes smaller and less responsive to variations in light.
Impact: Because the pupil controls the amount of light that reaches the retina, age-related changes to the pupil may affect vision in many ways. First, as the pupil decreases in diameter, seeing well in dim light becomes harder. In addition, the less able the pupil is to adjust to varying light conditions, the less tolerable glare becomes and the more difficult it is to adapt from darkness to bright light or vice versa. This means as you get older, you may need more time to adjust to changing levels of illumination, such as going from bright sunshine into a dimly lit room or restaurant.
Compensation: Proper illumination can compensate for many of the changes in your pupil as you age. Try these illumination techniques:
Increase the amount of ambient light throughout your home.
Use individual lights or task lighting for specific tasks. Studies show that for specific tasks, the average 60-year-old person needs at least three times the amount of light compared with the average 20-year-old.
Use timed lighting that switches on and off at set times of the day to ensure consistent ambient lighting.
Install motion-sensor lights in your home that turn on automatically when you enter a room.
Avoid bare bulbs, clear shades, and chandeliers without shades; these produce glare that can be disorienting and uncomfortable.
Cover shiny, highly polished surfaces in the home or work areas with cloth or rugs to reduce glare.
Om Namah Shivay

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