Eye Care Education

Eye Conditions

Learn About Common Conditions

There are many different types of eye conditions that could be affecting your vision. Unfortunately, many conditions often go unnoticed until the later stages, and may have long-term consequences if left untreated.

Education Eye Conditions

Common Eye Conditions

Below are brief descriptions of some of the most common eye conditions that many of our patients deal with. To learn more about how we can help you with any of these issues, book an eye exam at a Vision Source Location near you.

Find a Location

Amblyopia (Lazy Eye)

Amblyopia (commonly known as lazy eye) is a lack of vision development that usually occurs in one eye. The condition is often inherited and appears during infancy or early childhood. Ideally, lazy eye should be diagnosed between birth and early school age, since it's during this period that the brain "chooses" its visual pathway and may ignore the weaker eye permanently.

Unfortunately, lazy eye is not always easy to recognize in the early stages. That's why it's recommended that all children, including those with no symptoms, have a comprehensive eye examination by the age of three or earlier—especially if there's a family history of any eye condition or disease. 


Blepharitis is a common eye condition in which the eyelid becomes inflamed and irritated, resulting in red eyes, dryness and a general feeling of grit in the eyes. Usually blepharitis occurs when tiny oil glands located near the base of your eyelashes get clogged or come into contact with bacteria (such as from contact lenses and makeup). While the condition is uncomfortable and may affect your physical appearance, it doesn’t usually lead to permanent eyesight damage.


Cataracts are one of the leading causes of vision loss in Canadians over the age of 40, and develop as you age and your eyes' lenses naturally begin to harden and turn cloudy or white. The cloudy lens in your eye then blocks light from reaching your retina (the part of your eye that transmits visual information to your brain). The result is a reduction in vision—not unlike looking through a dirty car windshield.

While cataracts can occur naturally as you age, you're more likely to develop them if you're obese, a smoker, have diabetes and hypertension, or have a family history of the condition.

Getting cataracts treated early can mean all the difference in maintaining your eye health, which is why it's so important to schedule a regular exam. 

Computer Vision Syndrome

Computer Vision Syndrome remains one of the most common health complaints in the workplace. It's caused by staring at a computer or digital device screen for long periods of time, with the pixelated images causing your eyes to constantly refocus, resulting in eyestrain. Your vision can then become blurred and many people suffer from headaches, as well as neck and back pain.

Fortunately, avoiding Computer Vision Syndrome is easy if you follow a few simple guidelines provided by your Vision Source optometrist. In fact, at Vision Source we also offer lenses that are specifically designed for computer use and can help improve your vision and eliminate eyestrain.

Dry Eye Syndrome

Dry Eye Syndrome is one of the most common reasons why patients visit an optometrist and affects a wide range of individuals of all ages and backgrounds. The condition is caused when the tear ducts produce an insufficient amount of fluid, causing the eyes to become red, dry and uncomfortable. For most patients, Dry Eye Syndrome is an annoyance, although it can be indicative of a more serious condition or health problem. Fortunately, Dry Eye Syndrome can be treated by visiting your Vision Source optometrist.


Strabismus (more commonly known as being cross-eyed) is a condition in which the eyes are misaligned. It's usually caused because the muscles that control eye movement are not working together properly. The result is that one or both eyes turn inward, outward, upward or downward.

Strabismus is usually diagnosed during childhood and affects about 4% of children. Though it can't be prevented, its complications can be avoided with early intervention.

For additional information on eye health or to book a complete eye exam, visit a Vision Source near you.

Book an Appointment