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Home » Eye Care Services » Your Eye Health » Eye Diseases » Macular Degeneration » Forms of Macular Degeneration

Forms of Macular Degeneration

There are two forms of macular degeneration, dry (non-neovascular) or wet (neovascular). The term neovascular refers to the growth of new blood vessels.

Dry AMD (non-neovascular)

Dry AMD is the most common form of the disease, making up about 85%-90% of all cases of AMD. It is characterized by blurred central vision or blind spots, as the macula begins to deteriorate. Dry AMD is an early stage of the disease and is less severe than the wet form,.

Dry AMD occurs when the aging tissues of the macula begin to thin out and break down. Tiny pieces of white or yellowish protein called drusen begin to appear, which are thought to be deposits from the macular tissue as it deteriorates. The appearance of these drusen are often what leads to a diagnosis of AMD during an eye exam.

With dry AMD vision loss happens gradually, however, the dry form can progress to wet AMD rapidly. There is currently no cure for dry AMD, however there is research that shows that some people can benefit from supplemental vitamin therapy including antioxidants, lutein and zeaxanthin.

Wet AMD (neovascular)

Wet AMD is less common occurring in only about 10 percent of those with AMD. AMD is classified as Wet AMD when abnormal blood vessels begin to grow under the retina and leak fluid and blood into the macula, resulting in blind spots and a loss of central vision. Wet AMD can cause more damage to vision and permanent scarring if not treated quickly, so any sudden blur in vision should be assessed immediately, especially if one is aware that they have AMD. Usually vision loss happens faster and is more noticeable than in dry AMD so the quicker it is treated, the more vision you can preserve.

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Dear Patients,

Ontario will be entering LOCKDOWN on December 26 @12:01AM by order of the Government of Ontario for at least 28 days. Please note that medical care including Optometry services are NOT impacted by these changes.

We will continue to operate following Public Health protocols including screening, PPE, handwashing & sanitizing as well as maintaining physical distancing where possible.

We are open throughout the holiday season (Closed Dec25-27 and Dec31-Jan3) for orders, with very limited in person care. We will be open for full care on Jan 4. We will reserve two urgent care appointments each day during the province-wide lockdown to help reduce the number of eye related emergency room visits for our current patients.

If you are experiencing an eye emergency (loss of vision, double vision, distortion to vision, ocular pain, photosensitivity or other visual symptoms) please contact the office at 519 822 2710 for advice before presenting to the emergency room.