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What is it?

Causes

Symptoms And Complications

How to diagnose?

Treatment and Preventions

FAQs

What is Cataracts?

Cataracts are a condition where the lens (a part of the eye that focuses light) becomes cloudy. The lenses in the eyes are normally clear or transparent, but with age, the structure or chemical makeup of the lens changes, causing them to "cloud over." This causes a gradual and painless loss of vision, which can eventually lead to blindness. Fortunately, the process can almost always be corrected with surgery.

Cataracts are very common. In fact, they are the most common cause of blindness worldwide. They usually begin to appear after age 50, and about half of people aged 75 are affected. While we're all at risk of getting them as we age, some things make cataracts more likely, including cigarette smoking, lack of vitamins, sun exposure, and certain medications (see below).

What causes Cataracts?

The lenses of your eyes are mostly made up of neatly arranged proteins. Sometimes these proteins stick together, breaking formation and losing transparency. This causes the lenses to become cloudy. The world becomes hazy, darker, and less colourful. Untreated, the cloudy area may spread, progressively impairing vision in that eye.

A few people are born with congenital cataracts, which usually affect both eyes. These don't always affect vision. Traumatic cataracts refer to a condition that may appear immediately following an eye injury, or it may occur years later. Secondary cataracts are caused by certain chronic diseases. Diabetes is the most common cause of secondary cataracts.

Aging is the most common cause of cataracts. These cataracts have previously been called senile cataracts, but this term has fallen out of favour.

The following factors can add to the risk of developing cataracts:

  • Exposure to sunlight increases the risk of senile cataracts. Radiation from the sun, especially ultraviolet B (UVB) rays, damages the proteins in the lens.
  • Cigarette smoke damages the proteins in the lens.
  • Alcohol use.
  • Lack of some vitamins and other antioxidants such as vitamins C and E, selenium, beta-carotene, and lycopene has been shown by research to be linked to cataracts. Antioxidants protect the body from oxidants, also known as free radicals. Free radicals react with your cells, effectively "rusting" them. If you're not getting enough antioxidants in your diet, such as vitamins C and E, you might be putting yourself at risk for cataracts.
  • Poorly controlled diabetes and high blood pressure.

Certain medications can also cause cataracts, including:

Cataracts Symptoms And Complications

Cataracts cause a gradual, painless loss of vision. In older people who wear glasses for reading, close-up vision may actually improve at first. This is because they are going from Farsightedness to Nearsightedness. Double vision may also appear temporarily early on in the course of the disease.

Other symptoms include:

  • frequent changes in your glasses or contact lenses
  • cloudy or blurred vision
  • dull, faded colour and difficulty with distinguishing dark blue from black
  • poor night vision
  • odd visual effects around lights, such as glare or halos

Cataracts can't jump from one eye to the other. But people who get one often end up developing it in the other eye.

How to diagnose Cataracts

If you've noticed any of the symptoms described above, see your primary doctor or an eye care specialist. Your primary doctor can find cataracts by shining a special light into your eye to look for cloudiness. You might then be sent to an eye specialist (ophthalmologist), who will use special instruments to learn more about your cataracts and any other eye problems you might have.

Cataracts Treatment and Preventions

Cataracts still blind millions of people in the developing world, but in North America, they're readily removed with surgery. The operation takes about an hour or less. It's usually done under a local anesthetic, while you stay awake. The old blurry lens is replaced with a new, clear plastic lens. The operation improves vision in over 90% of people, usually quite dramatically. Generally, only one eye is operated on at a time.

After the surgery, some people find the world explodes into colour so intense it's almost painful. This is because the brain has compensated for the lower light intake by amplifying colour signals. It can take some time for the brain to get used to your improved vision. You may not be able to drive your car for a few weeks if this is the case.

Cataracts happen with natural aging, but you can take steps to prevent them. To avoid exposing your eyes to sunlight, wear sunglasses that filter out both UVA and UVB rays. Sunglasses that only filter out UVB can actually increase your risk of cataracts because they shade your eyes, causing the pupils to open, and this allows more UVA light to enter the eye.

You can get more antioxidants in your diet by eating citrus fruits and leafy green vegetables. You'll also help offset your risk of heart disease and cancer. Reducing alcohol use will help reduce your risk of cataracts; if you have diabetes, controlling your blood sugar will help. If you're a smoker, you can improve your chances even more by quitting.


Frequently asked questions

How to buy Cataracts medications online?

You can buy your medications to treat Cataracts online at PocketPills if you already have a valid prescription from your doctor. You can get started by uploading your prescription, ordering a refill by transferring any existing medications to our pharmacy or talking to one of our Canadian Doctors to get an online prescription. Get started now!

Can I get brand name Cataracts medications or chose to get generics?

Absolutely. You can always communicate your preference for brand or generic medications during your online consultation. As a policy, PocketPills advocates generic medications as more affordable and more likely to be covered by your insurance plan

Can I get a prescription on PocketPills for Cataracts?

Yes, our physicians can prescribe medications online during your consultation. Once you receive a prescription, you'll have the option to have it delivered to your door in discreet packaging and at no additional cost!. Click here to get an online prescription today!

References

All material © 1996-2021 MediResource Inc. Terms and conditions of use. The contents herein are for informational purposes only. Always seek the advice of your physician or other qualified health providers with any questions you may have regarding a medical condition.

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