It’s easy to take your eyesight for granted – until something happens to threaten it. This throws vision’s importance into sharp relief. Here are the five most common eye problems affecting your vision and shares tips for preserving your eyesight.
1. Cataract
The problem: Light rays from objects in view must pass through your lens to reach your retina’s light-sensing cells. When a cataract clouds the lens, your vision fogs and lights get a halo.
Tips for prevention: Protect your eyes with lenses that block both UVA and UVB light, and avoid smoking. It’s important to control your blood pressure, watch your weight and manage diabetes as well.
2. Diabetic retinopathy
The problem: Your retina transforms light into signals your brain can process. Diabetes can swell the retina and make blood vessels leak or grow, causing blurring, flashes, floaters, pain and pressure.
Tips for prevention: Get yearly dilated eye exams to detect diabetic eye problems early, which can prevent or slow vision loss. Controlling your blood glucose and blood pressure is also key.
3. Macular degeneration
The problem: You rely on light-sensing cells in the macula, the center of your retina, for what is called central vision. In age-related macular degeneration (AMD), tissue breakdown or blood vessel growth in the macula makes it hard to see faces, read, drive and more.
Tips for prevention: Avoid smoking, which doubles your risk of macular degeneration as you age. Get regular exercise, control your blood pressure and cholesterol. Also, eat lots of leafy greens and fish.
4. Glaucoma
The problem: The right amount of fluid must fill the space within your eye. Pressure from too much fluid damages the optic nerve, stealing your peripheral, and then your central, vision.
Tip for prevention: Work with your eye doctor to keep your eye pressure well-controlled to avoid losing your vision.
5. Refractive errors
The problem: Your eyeball, cornea and lens must be shaped just right for light rays to bend (refract) and land on your retina to make their way to the brain. If this process doesn’t happen, vision blurs.
In refractive errors, light rays do not bend and land where they should in the eye. Refractive errors include:
- Nearsightedness (myopia): Light rays fall short of your retina.
- Farsightedness (hyperopia): Light rays overreach your retina.
- Astigmatism: Light rays fall unevenly on your retina’s surface.
- Age-related difficulty focusing up close (presbyopia): Light rays overreach the retina, making reading and other close work a challenge.
Source: clevelandclinic.org
For more helpful eye care and vision care tips, please visit our main blog page
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