As you get older, presbyopia, which is the gradual loss of near vision and the need for reading glasses, becomes an inevitable part of aging. However, for those who are preparing for cataract surgery, there is an option that can restore both distance and near vision: multifocal intraocular lenses (IOLs).
Unlike monofocal IOLs, which only correct one range of vision, multifocal IOLs have different focal points, allowing you to see clearly at various distances. Keep reading to learn what the benefits are of choosing a multifocal IOL!
Why Do I Have Cataracts?
Cataracts develop inside the lens of the eye. Proteins that are normally arranged to let light through begin to break down and clump together as you age.
The clumps begin small and relatively clear, so you might not notice your vision changing at first. Since cataracts typically grow gradually, it can take many years before cataracts worsen enough to warrant treatment.
However, as time goes on, the clumps grow in size and darken. More and more light is blocked, and you will experience a variety of symptoms.
The most common symptoms of cataracts are:
- Cloudy or blurry vision
- Distorted vision
- Difficulty seeing at night
- Faded colors
- Sensitivity to light
- Halos around lights.
- Frequent changes in your prescription.
Why Do I Need Cataract Surgery?
The only way to restore vision affected by cataracts is through cataract surgery. There is no medication or treatment that will be able to return your natural lens to a clear state.
Since cataracts will inevitably worsen over time, if left untreated, cataracts can significantly impair vision. In most cases, you will not need to get cataract surgery right away.
However, it’s important to regularly visit your eye doctor to ensure that your cataracts aren’t worsening to the point of affecting your everyday life. They will help you monitor the progression of your cataracts and help you plan for your cataract surgery when necessary.
How Does Cataract Surgery Work?
During cataract surgery, your cataract surgeon will remove the eye’s cloudy natural lens and replace it with a clear artificial lens, vastly improving vision. First, eye drops are used to numb the eye so you don’t feel any discomfort during the quick procedure.
Then, your cataract surgeon will make a tiny opening in the front surface of the eye, known as the cornea. Through this microscopic incision, your cataract surgeon will insert a slender tool that uses ultrasound waves to gently break up the hazy natural lens into tiny fragments.
These cloudy pieces are then removed from the eye with gentle suction through the same small opening in the cornea. After removal of the cataract, the new artificial lens, called an intraocular lens, is placed into position where the natural lens used to be.
The opening requires no stitches as modern micro-incisions self-seal. You will need to use prescribed medicated eye drops for a few weeks to reduce swelling and risk of infection as the eye heals rapidly.
In as soon as a day or two, vision is restored and you can resume normal activities.
What is an IOL?
An IOL, or intraocular lens, is the artificial replacement lens implanted in the eye during cataract surgery. After your cataract surgeon removes the eye’s cloudy natural lens that causes blurred vision from a cataract, the IOL is inserted through the same microscopic incision.
Made of clear plastic or acrylic, the artificial lens takes over the focusing power that the natural lens had before it became obstructed and dysfunctional. IOLs are carefully designed and measured to restore sharp vision at both near and far distances.
Many types of IOLs can give you other vision benefits, too, like reducing dependence on glasses. With the cataract gone and premium IOLs to compensate for lost lens capacity, you can regain crisp, clear sight after a quick and minimally invasive procedure.
What are My IOL Options?
If you choose to have cataract surgery, one of the most significant decisions you will make is what type of new lens will replace your cloudy natural lens. Luckily, advances in IOL designs and technology give you options for lifestyle and vision needs.
Monofocal IOLs have a single, fixed focus. Like simple reading or distance glasses, monofocal lenses restore sharp vision either up close or far away, not both.
Multifocal IOLs can allow you to see well at near, intermediate, and distance. These lenses can reduce or eliminate the need for glasses after cataract surgery by mimicking the eye’s ability to shift focus.
Toric IOLs are specialized lenses made to correct astigmatism, which is irregular curvature in the cornea or lens that happens in some eyes. With more than one focusing strength in one lens aligned to the unique shape of your eye, toric IOLs provide crisp vision without distortion.
Discussing your daily activities, vision needs, cost differences, and lifestyle expectations with your eye doctor can help determine if premium IOLs like multifocal or toric lenses are right for your eyes and budget.
SHOULD I CHOOSE A MULTIFOCAL IOL?
Whether or not you choose to invest in a multifocal IOL should depend on several factors. First, take into account your lifestyle.
If you are an active person, premium IOLs like multifocal or toric IOLs may be the best option for you. These advanced IOLs can allow you to have less dependence on visual aids after the procedure.
With a multifocal IOL, you’ll enjoy sharp vision whether reading a menu, using a computer, or driving. The lenses also enhance contrast sensitivity and depth perception compared to basic monofocal IOLs.
Investing in your vision and lifestyle can make a significant impact on living life to the fullest. While most people agree that the quality of life improvement of multifocal IOLs is worth it, they do require more of an investment.
Finally, talk with your eye doctor. They will be able to give personalized recommendations based on your vision needs and individual eyes.
Do you want to learn more about IOLs or determine which lens might be best for you? Schedule a cataract evaluation at Hayden Vision in Evansville, IN, today!