Age-Related Macular Degeneration (AMD)

Age-Related Macular Degeneration (AMD)for AMD. It is estimated that about 10% of the total
Eyes like all other organs in the body undergo wearpopulation of the world in the age group of 66 to 74
and tear. As we age, this wear and tear starts toyears is suffering from the disease. The percentage
affect the vision. Age-related macular degeneration asof people getting affected by AMD increases as the
the name suggests is a macular disease which mostlyaging process increases.
develops after a person reaches middle age.Smoking: Researches in macular degeneration have
Malfunctioning of the light sensing cells in the macula isfound that smoking increases the risk of AMD.
the cause of AMD.Gender: Women are more prone to AMD than men.
Retina, situated at the back of eye, is the light-sensitiveRace: The disease is found more in white people than
tissue which transmits the images we see to the brainin black people.
as electrical impulses. Macula is a part of the retina andFamily history: The chances of a person developing
is responsible for the sharp central vision needed forAMD is high if the person's family has a history of
reading, driving, distinguishing colors and for perceivingAMD.
fine details.Color of the eye: People with blue eyes are more
Age-related macular degeneration robs the center partprone to AMD. This is because blue eyes have less
of anything a person views. For example, if the personprotective pigment which neutralizes the ultraviolet light
affected with AMD looks at a photograph of a person,effect.
he will be able to only see the outermost regions ofDiet: Researches have identified high fat intake as a
the photograph and the center portions will be blurredmajor reason for the development of AMD.
or partially black and therefore the person will not beOther diseases leading to AMD: People suffering from
able to identify the photograph. AMD rarely leads tohypertension, obesity and high cholesterol can develop
total blindness.age-related macular degeneration.
It is estimated that about 15 million people in the UnitedSunlight: It is believed that over exposure of the eyes
States are suffering from Age-related macularto sun increases the risk of AMD. But this continues to
degeneration and around two million new cases arebe a debated issue as certain studies does not agree
diagnosed annually. AMD is the main cause of visionwith the view point.
loss in adults over 60. Around 25% of the population inLatest researches point that the accumulation of
the age group of 65 to 75 is suffering from AMD. Thepro-oxidant melanin oligomers within lysosomes of
numbers go even high for adults over 75.retinal pigment epithelium is the cause of AMD. As
Causes of AMDthere is a constant increase annually in the number of
The exact cause of AMD still eludes thepatients suffering age-related macular degeneration,
ophthalmologists. But certain risk factors have beenmore and more researches are being conducted to
identified.determine the exact cause of the disease.
Aging: Aging process is believed to be the main reason