Central Scotoma

A central scotoma is a grey, black or blind spot in the middle of one's vision. This central blind spot can be due to geographic atrophy (advanced dry macular degeneration) or to the damage of photoreceptor cells from choroidal neovascularization (leaking blood vessels).

Scotoma Causes

There are many medical conditions that can cause this loss of central vision or blind spot.  Some of them are:

√ Macular Degeneration

√ Strokes

√ Traumatic Brain Injuries

√ Disorders that affect the retina, choroid, or the optic nerve

√ Result of laser photocoagulation treatment

In this picture from the National Eye Institute, you will get an idea of what someone sees who has advanced macular degeneration - there is normal side or peripheral vision, with a black or gray spot right in the middle of one's vision. This loss of central or straight ahead vision makes it difficult to recognize faces or to read.

Central Scotoma image provided by the National Eye Institute

It is possible to have more than one blind spot or scotoma. Some patients with macular degeneration will have multiple scotomas.

Macular Degeneration Blind Spot

The most common cause of this blind spot is age related macular degeneration (AMD). The frustrating part of AMD is that the peripheral vision remains fine, while the more important central vision that we need for daily living becomes impaired.

central scotoma

                       Central Scotoma

There are different types of blind spots depending on where the vision loss appears. With macular degeneration, it is called a central scotoma.

The decreased, lost or blurry vision with this type affects what we see straight in front of us.

central scotoma

The macula is a tiny spot in the back of the retina that is responsible for this central vision. As macular degeneration progresses the photoreceptor cells, especially the cone cells, often die because of problems with getting oxygen and nutrients to the cells and waste products building up.

Symptoms of macular degeneration also develop when abnormal,leaky blood vessels start to grow and leak fluid causing damage and degeneration to the cone cells. 

Central Scotoma Treatment  Eccentric Viewing

Having a blind spot in the center of your vision is very disabling and frustrating. I don't want to diminish this loss nor how it affects the independence of those who are living with one...but I don't want to leave you thinking that there is nothing out there to help you.

maximizing your vision with a central scotoma

You may never have heard of eccentric viewing before, but it is simply a name given to a new way of looking at things.  

Eccentric viewing is a technique that involves looking slightly away from an object in order to see it using your peripheral vision instead of your straight ahead or central vision.

By using your peripheral vision you are using the rod cells instead of the damaged cone cells in the macula or fovea. Although our cone cells are responsible for detailed and color vision, the rod cells, with some training, can adapt to help with these functions. The eyes and the brain can learn new techniques and ways of seeing the world with:

1) proper training

2) lots of practice

3) the appropriate visual aids

To learn more about eccentric viewing and to see a video that explains how it works go to Eccentric Viewing

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