That condition of a tissue or an organ in which its vitality has become either diminished or perverted; a substitution of a lower for a higher form of structure
fatty degeneration of the liver.
The act or state of growing worse, or the state of having become worse; decline; degradation; debasement; degeneracy; deterioration
The modern cry of more liberty and less creed is a degeneration from a vertebrate to a jellyfish.
A gradual deterioration, from natural causes, of any class of animals or plants or any particular organ or organs; hereditary degradation of type
The process of change, usually with age, in bone or soft tissue Sometimes referred to as `wear and tear`
Biological degeneration refers to a structural or compositional change in a tissue or organ that prevents the tissue or organ from doing its job Although the causes of degeneration in the human body are often unknown, malnutrition and stress play a role
A process by which tissue deteriorates, loses functional activity and may become converted into or replaced by other kinds of tissue
passing from a more complex to a simpler biological form the process of declining from a higher to a lower level of effective power or vitality or essential quality
A wear and tear phenomena When the joints of the body wear out, it is referred to as osteoarthritis, also known as degenerative joint disease
the process of declining from a higher to a lower level of effective power or vitality or essential quality
That condition of a tissue or an organ in which its vitality has become either diminished or perverted; a substitution of a lower for a higher form of structure; as, fatty degeneration of the liver
The accumulation of fat globules within the cells of a bodily organ, such as the liver or heart, resulting in deterioration of tissue and diminished functioning of the affected organ
One of the most common causes of decreased vision after age 60 Usually evident as a loss of pigment from pigment epithelium and deposits of yellowish material in the sub-pigment epithelial layer in the central retinal zone
The macula is the central part of the retina that enables you to read and see straight ahead (central vision) The cause is unknown Although macular degeneration can occur in children and young adults, it is more common in older person Fortunately, in macular degeneration, peripheral vision is not affected, and thus a person with macular degeneration does not face total blindness If you have macular degeneration you are usually able to move about unaided, but may find reading, close work, or distinguishing distant objects difficult or even impossible (Palin 7)
A pigmentary disturbance in the macula lutea lying slightly lateral to the center of the retina in the eye, which brings the loss of central visual acuity
is varying degrees of blurred vision resulting from damage to the retina The retina is the thin layer of tissue at the back of the eye that serves as a projection screen to send images to the brain The small central part of the retina responsible for the most detailed vision required for activities like reading, writing, and driving is the macula Age related macular degeneration (AMD) is the most common cause of blindness in people aged 65 and over Wet macular degeneration occurs when capillaries multiply abnormally under the retinal covering causing it to detach They also may bleed which can cause scar tissue to form This is the more common of the two types of macular degeneration
Damage or breakdown of the macula, which is an area in the back of the eye that controls central vision The condition may be caused by injury or aging, and while it does not progress to total blindness, patients with macular degeneration may require special optical aides to enlarge distant and near objects
A condition in which the cells of the macula lutea degenerate, resulting in blurred vision and ultimately blindness. Degeneration of the macula (central part of the retina), with corresponding visual-field defect. It is the leading cause of blindness in old age. Probably due to reduced blood circulation, it is now known to have a genetic component. It is twice as common in smokers as in nonsmokers, and it is also correlated with lifelong sun exposure. Peripheral vision usually remains, but loss of central visual acuity makes reading or fine work difficult or impossible, even with special magnifying eyeglasses. Some forms of macular degeneration can be halted (but not reversed) by laser surgery
— (AOA) - Leading cause of blindness in America (JP) Common cause of decreased vision in adults over 60, evident as loss of pigment from pigment epithelium and deposits of yellowish matter in sub-pigment epithelial layer in central retinal zone (NERF) - The degeneration of the nerve endings in the macula area, which includes the fovea Senile macular degeneration refers to age related degeneration of this area Sometimes referred to as "ARMD", for age-related macular degeneration
Any deterioration of the macula tissue Most commonly used to describe Age Related Macular Degeneration, a condition characterized by pigment and blood vessel deterioration beneath the neurosensory macula
Macular degeneration is an eye disease that occurs when there are changes to the macula The Macula is a small portion of the retina that is located on the inside back layer of the eye It reduces central vision and makes seeing details for close work, like reading or sewing, difficult or impossible Macular degeneration is the leading cause of vision loss among people over the age of 50
Macular degeneration (AMD) is the result of degeneration of the macula, the central part of the retina that is responsible for seeing detail clearly It is the leading cause of vision loss in people over 50, and affects one-quarter of the aging population It's estimated that 13 million people in the U S and as many as 40 million people worldwide have signs of macular degeneration Every year, over 400,000 Americans are diagnosed with a severe form of macular degeneration, leading to functional blindness
loss of vision due to wear and tear or damage to the macula There are two types: dry-type and wet-type, so called as the latter is caused by fluid flooding Occasionally, dry-type degeneration can lead to wet-type
Eye's disease caused by abnormal growth of blood vessels in macula area The new blood vessels are very fragile, start to bulge, leak blood & fluid, lifting the retina off its membrane & ultimately leading to blindness
-the macula is the small area in the retina of the eye, 3 to 5 millimeters in size, that provides the sharpest and clearest vision The macula can degenerate with the aging process, perhaps due to oxidation The fatty acid DHA is present in large amounts in the retina
Degeneration of the photoreceptors in the macula or central region of the retina This area of the retina is responsible for central vision, used for reading, seeing faces, and so on Often associated with aging See Age-related Macular Degeneration in Eye Care Encyclopedia
When macular degeneration is complicated by abnormal blood vessel growth (the wet form), lasers can destroy the vessel and reduce the chance of further visual loss