Vision Conditions

Eye health is something that can be affected at any stage in life, sometimes signs are obvious but often there may not be a known problem until vision loss has occurred.

To make sure your eyes are healthy we highly recommend that you have your eyes checked at least every two years. Some common vision conditions are listed below, if you have concerns about any of the following be sure to make an appointment as soon as possible.

The following list gives a brief overview of some of the major vision conditions that can affect you at various stages of life. If you have any of these symptoms it’s recommended to get your eyes checked as soon as possible.

Astigmatism is a refractive error that allows multiple focal points to occur that affect your vision. This causes what you see to be blurred or distorted at all distances.

blurred vision
The loss of eyesight caused by light not focussing at the back of the eye, also known as blurred vision. This makes objects appear hazy and out of focus. The main causes of blurred vision are refractive errors commonly called Hyperopia (farsighted), Myopia (nearsighted), Astigmatism and Presbyopia.

Cataracts are the most common cause for loss of vision in those who are older than 40 years old. In fact, it’s the main cause of blindness throughout the entire world. This condition causes the lens inside the eye to lose it’s clarity so light cannot reach the back of the eye.

double vision (diplopia)
When both eyes are accurately and correctly focusing on one point at the same time, you see just one image. Double vision occurs when both eyes are focusing in different directions and you see two images at the same time. If you begin to see double vision when your eyes typically only one image you should take this seriously and seek immediate help.

dry eyes
While we are awake tears are constantly being produced by a gland located at the top of the eye. When we blink these tears are washed across the eye and keep the front of the eye wet. When there is a reduced tear production this leads to a lack of lubrication and the front of the eyes dry up, causing dry eye syndrome. This is experienced as an irritation and rubbing the eye makes it worse.

The small spots, flecks, specks and cobweb-like images that drift through the field of vision are known as eye floaters. They float in the fluid inside the eye. Even though they can be quite annoying they are not a cause for panic or alarm. They are actually quite common and can be usually seen when you look at a white wall or the blue sky and move your eyes.

Glaucoma is a grouping of eye disorders that typically have little or no preliminary signs or symptoms. However, eventually they will cause damage to the nerves that carries data from the eye and into the brain. The optic nerve is the affected area.

hyperopia (farsightedness)
Hyperopia, also known as farsightedness, is a vision problem that is quite common. It affects nearly a quarter of the world’s population. People with this condition have the ability to see objects in the distance very well, but have a hard time seeing objects that are close up.

Keratoconus is an eye disease that is highly progressive and causes visual distortions. The cornea, which is typically spherical, starts to thin out and become bulging until it reaches a cone like shape. This irregular shape serves is difficult to correct with spectacles. Hard contact lenses are effective but more severe cases need corneal grafts.

macular degeneration
The macula is a part of the retina and is responsible for the centrally sharp vision which is needed to do tasks such as reading and driving. With age the Macular starts to degenerate and this is called macular degeneration. This is now one the most common forms of vision loss in people over 60.

myopia (nearsightedness)
Myopia is one of the most common form of refractive errors, also known as nearsightedness. In myopia the distance vision is blurred while to close vision is clear and focused, depending on the amount of myopia.

Presbyopia typically occurs over the age of 40, people begin to experience blurry vision when reading, working on the computer, sewing, etc. This is due to the lens inside the eye naturally losing it flexibility and the eye can no longer focus on close objects. This loss of flexibility occurs between the ages of 40 to 60 and then stabilises.

Vision conditions information courtesy of Optipro.

For more information on any of the listed vision conditions visit the Optipro Vision Conditions page.