Age-related macular degeneration (AMD) is the leading cause of severe visual loss in individuals over the age of 55. It affects the central retina, called the macula, which has a high concentration of light receptors that enable us to see detail for activities such as driving or reading.
There are two categories of macular degeneration: dry and wet.

Dry AMD is slower to progress and can remain stable for greater periods of time, depending on a patient’s risk factors and lifestyle. In contrast, wet AMD is characterized by more rapid onset of symptoms, including dark or blurry areas of the central vision, abnormalities of colour perception and more pronounced distortion of straight lines. These symptoms warrant an urgent appointment with your eye specialist for an evaluation of the problem.
While only 10 per cent of patients who have dry AMD will progress to the wet type, these patients comprise the majority of the people who suffer severe vision loss.
As with many chronic diseases, early detection is key to containing the damage from AMD. The Amsler grid, which can be easily accessed online, provides a way to test your vision. Using one eye at a time, look for early signs of distortion or missing areas on the grid indicative of changes on your macula. Grids can also be obtained in most eye specialists’ offices, but viewing any object with straight lines such as a window or door frame using one eye at a time from a consistent place will help give an indication of whether or not changes may be occurring.
Early treatment can minimize macular damage…………..
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Source: The Carillon