Prevent and care from diseases and injuries

The Aging Eye

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Posted by admin | Posted in Treatment | Posted on 01-01-2008

aging eye 200X131 The Aging EyeWhen the age is increasing, worsening the quality of vision, for reasons independent of aging eye diseases. The area of the pupil regulates the amount of light that can reach the retina. The extent to which advanced students were also declines with age. Due to the small size of the students, older eyes receive much less light on the retina. Compared with younger people, it is as if the average density seniors wore sunglasses in the bright and extremely dark glasses in dim light.

To maximize light into the eye, make sure that your glasses have an anti-reflective coating. Anti-reflective lens coatings are significantly reducing the reflective surface and allow a better transmission of light through the lens. When the AR coating is applied to the front and back surfaces of a lens increases the proportion of light transmitted to about 99% (by 90-92% compared to non-ARC-lenses).

Aging leads to a significant slowing of dark adaptation. Vision changes color with some reduction in the ability to distinguish blue and green spots. Yellowing of the lens is suspected to be responsible for this effect. The aging lens and cornea causes glare from light scattering, especially for shorter wavelengths. Aberrations of the cornea are increases with age, resulting in poor visibility, especially when the pupil expands in the darkness.

The annoying aspect of the vision of an older person seems to be a feeling that this does not work as easily and as fast as in younger days. You need to require more care and higher education, that they were used with the same perceptual results.

Lighting the Way

Vision of the world deteriorates with age, but there are ways to mitigate its effects. Good lighting can see the difference between having and not visible to older adults, especially in your houses, stairs, kitchen, dining room make lamps, etc. Naked: It is the worst thing for older eyes, producing glare, which can be confusing and painful. Fill Light: Light to concentrate on work, not on the eyes. A good choice is a CFL with electronic ballast that starts without a flicker. Bathroom Lighting: Lots of overhead light should be made available and even in the shower, where accidents are most prevalent.

Anatomical changes

Aging causes laziness and bottom of the eyelid tissues and atrophy of the orbital fat. These changes contribute to the emergence of various diseases such as eyelid ectropion, entropion, and ptosis Laxa. The skin fold of the upper eyelids and ptosis can be connected because of the age of the demolition of the levator aponeurosis and atrophy of the regression of the orbital fat. The shortened horizontal palpebralĀ  gap of about 10% with age. With the aging of leading a white ring develops in the periphery of the cornea, as arcus senilis. The endothelial cells of the cornea gradually decrease the number. The vitreous gel undergoes liquefaction and the opacity – visible as floaters gradually increases.

Aging Eye Diseases

Cataracts: Cataract is opacity or clouding of the normally transparent lens inside the eye. It prevents the light from the retina. The picture of the retina is replaced by the dull and fuzzy. To the normal aging process causes hardening of the lens and turbid (opaque). This is called a cataract associated with age and is the most common form. It can occur at any time after 45 years.

Glaucoma: Glaucoma is a serious disease that causes an increase in pressure in the eye by an accumulation of excess fluid causes. If left untreated, this pressure can affect vision by irreversible damage to the optic nerve and eventually lead to blindness.

Macular degeneration (AMD): The macula is the part of the retina, the us central vision and allows us to see fine details, like recognizing faces, reading or watching television. Macular degeneration is a disease in which the macula deteriorates. It is often associated with aging and is commonly referred to as age-related macular degeneration (AMD).

Presbyopia: When you have presbyopia, you lose the opportunity to focus more strongly that occurs with age. Most people have between 40 and 50, when it is not the first time for them to view objects in their vicinity.

Macular Hole: A macular hole is a break in the macula, in the middle of the light sensitive tissue removed from the eye when the retina. A macular hole can be blurred and distorted central vision. Macular holes occur on aging and usually in people who are over 60 years in context. It is 4 times more common in women.

Diabetic Eye Disease: Retinopathy is usually caused by damage to blood vessels in the retina. Retinopathy is usually caused by diabetes mellitus (DM), but also caused by other diseases like high BP.

Dry eye: The most common cause of dry eye is a failure of the glands of the eyelids to tears, which often produce in the aging process.

The real problem of blindness is not the loss of vision. The real problem is ignorance and lack of available information. If a blind person, a proper training and opportunities for physical complaints blindness can be reduced.

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