Blindness affects many people across the world 거만어 다운로드. While some eye diseases occur from birth, others can be hereditary, or can come about through lifestyle.
What you might not know is that certain eye conditions have different effects on your vision. For example, glaucoma starts off with the loss of peripheral vision, whereas cataracts causes ones vision to blur. Here are four of the most common eye diseases, and what the world might look like for those with any of these conditions.
1. Macular Degeneration
Macular degeneration is a disease that affects the central portion of the eye. Over time the disease slowly blackens ones vision from the centre outward. There’s no known cause, but age is a big factor. This is what you’d see:
The eyes work by receiving light and converting that light into impulses which are sent to the brain. The nerve that sends these impulses to the brain is called the Optic Nerve. Glaucoma is a disease that damages this nerve. At first it will only affect your peripheral vision, but over time it closes in. Here’s an example:
Ever seen that blue-grey glaze over someone’s eyes? That’s what cataracts looks like. Cataracts is the clouding of the lens of the eye. This makes it difficult for light to pass through, making your vision very blurry. Fortunately, cataracts can be surgically removed to improve sight.
4. Diabetic Retinopathy
Diabetes can have a significant impact on your health. What you might not know is that it can also cause blindness. Diabetic retinopathy is a disease where the retina is damaged due to diabetes. Over time, the tiny blood vessels in your eyes are damaged and if left untreated it could damage the retina. Here’s a look at diabetic retinopathy:
Remember: It’s important to visit your doctor at any sign of decreased or distorted vision. Some eye conditions can be managed if detected early enough, so don’t let a little spot become a bigger one!