Recently, ophthalmologists have been able to offer more and more options for specialized kinds of intraocular lens (IOL) replacements, giving you some control over how well you will see up close or far away, and if you will need to supplement with glasses. Intraocular lens replacements are most commonly used in cataract surgery.
If you have cataracts, you’re not alone. More than 25 million Americans have cataracts with approximately 4 million having cataract corrective surgery yearly1. At Colorado Ophthalmology Associates, we’re here to take the mystery out of IOLs and to help you choose the one that’s right for you.
An intraocular lens can be used as a replacement for a cloudy lens that has caused diminished vision. However, it can go beyond just being a replacement, it can also correct certain kinds of vision problems. For example, if you’ve been experiencing natural vision loss due to aging (presbyopia) and have been using reading glasses, a special IOL can help with that condition.
There are different choices of materials within each of the five kinds of IOLs. Your ophthalmologist will discuss the best choice for your unique eye needs.
Here are 5 kinds of intraocular lenses and what they can do for vision problems1:
The basic lens available for cataract surgery is the monofocal lens. This offers the best night vision with less glare, dull vision and halo problems for those who drive at night. Monofocal lenses can be designed for near vision or for far vision, depending on your choice. If you work on the computer a lot, you may desire near vision and then supplement with glasses for driving. Or, if you prefer to see well at a distance and don’t mind wearing glasses for up-close work, you can choose far vision IOLs.
These lenses offer the greatest range of vision correction with different zones on the lens that allows you to see up close and far away. Intermediate vision is also an optional lens zone. Your brain helps you adapt to these zones in the same way as using bifocal or trifocal glasses.
Extended Depth-of-Focus Lenses
These lenses have one corrective zone, like the monofocal lenses, requiring you to supplement with glasses. But this zone is designed to stretch to include both intermediate and far away vision.
Like multifocal lenses, accommodative lenses allow the patient to see near, far and even intermediate but not because of zones on the lens. Instead, the lens flexes, allowing the focus power of the eye to be increased to see the object more clearly.
These lenses are designed to correct astigmatism. They have different zones in different areas of the lens, allowing the best correction for astigmatism when expertly placed by your ophthalmological surgeon.
Is there a price difference between the IOLs?
Yes, IOLs range in price from the lowest, monofocal lenses, to the highest, premium lenses. Premium lenses are not considered as necessities and are not fully covered by Medicare and other insurance companies, though they will often cover basic, monofocal lenses. Premium lenses can range from $1,500 to $3,000 per eye, above what insurance will cover. Additional costs may include laser procedures or limbal relaxing incisions needed to correct vision and to adapt to the IOL.
What is monovision2?
One final option for your IOLs includes monovision, which results from having two different kinds of lenses implanted – one in either eye. This can be done to offer you a greater choice in vision, such as having one eye that can see close and one eye that can see far. Or, this procedure can be done to compensate for different levels of astigmatism in each eye. Your brain adapts to the two different visions and, for some patients, this is a good option.
Get an appointment for an eye exam today
To get more information on the variety of IOLs available, call us today. If cataract surgery is in your future, we can provide expert care from start to finish. Come to one of our two Colorado locations for an exam by one of our board-certified, experienced ophthalmologists and let’s discuss the right intraocular lens that can help you see beautifully again.
If your eye’s lens has become cloudy, causing your vision to become blurry, hazy and dulled, your ophthalmologist from Colorado Ophthalmology Associates has likely recommended cataract surgery. One of the most common procedures worldwide, cataract surgeries can help people who have been noticing increasing difficulty seeing when driving, watching TV, climbing stairs, or even focusing in bright lights.
In cataract surgery, your ophthalmologist will use delicate instruments to make a small incision in the eye to remove part of the lens and then to remove the cataract. An artificial lens, folded up, will then be inserted into position1. It will unfold and become the new permanent lens implant, allowing light to refract onto the retina for a clearer visual image.
What will happen during my pre-surgery appointment?
Before your cataract surgery, your ophthalmologist will want to measure your eye for the right fit and for the correct power of your intraocular lens (IOL). The details of the surgery will be discussed and you will be given instructions for the day of surgery, such as not wearing any makeup, creams or facial lotions that day. You will also be instructed not to eat or drink anything for 12 hours prior to your surgery.
Your doctor will want to know what medications you are taking, so bring a list with you. You may receive instructions to stop taking some of the meds prior to your surgery. Additionally, you may receive an antibiotic eye drop prescription along with instructions to use the drops before your surgery. These drops may help prevent infections and lessen swelling.1
What will cataract surgery be like?
On the day of your surgery, you will need to have someone drive you home, so be sure to make arrangements. Surgery will last only 10 to 15 minutes, but with prep and recovery, plan on an hour in the office. Here are the steps to the surgery:
- Eye dilated with drops
- Eye numbed with drops or injection
- You may be given a light sedative to make you groggy and relaxed
- You will be awake and see light and movement, but not exactly what the doctor is doing
- Your surgeon will use a special microscope to view the eye and the procedure
- The old cataract will be removed and the new, artificial lens will be implanted
- Stitches are not usually needed since the lens will attach and heal by itself
- A shield will be placed over your eye to protect it while it heals
- You will rest in recovery for 15-30 minutes before being discharged
What will recovery be like?
Your vision will usually start to improve within a day or so, though it may start out blurry. Since the cataract was likely a brown or yellow color, you will probably notice a remarkable difference in colors. You may experience some mild discomfort for a few days while the eye heals. If it feels itchy, avoid rubbing or touching it. Your doctor may have you wear an eye patch during the day and a shield during the night.
Eye drops may be prescribed. It is important to follow these instructions to prevent infection and to protect your eye during healing.
Your ophthalmologist will want to see you a day or two after surgery. You will have a follow-up appointment or two within the first month so the eye can be monitored closely. If both eyes are receiving surgery, your second cataract surgery will be scheduled to take place after the first eye heals. By two months, your eye should be completely healed.
You may still need to wear glasses after cataract surgery. After the eye has healed, you will need to have a new prescription for your glasses. If you chose an intraocular lens (IOL) implant, you may not need glasses or you may only need them part of the time.
At Colorado Ophthalmology, we specialize in fitting the right IOL to the right patient to improve vision and to reduce dependency on eyeglasses. Your ophthalmologist will discuss the different kinds of IOLs with you prior to your surgery.
- A monofocal IOL gives you one clear focal point. You can choose whether that point is near, middle or far. Many patients prefer to see clearly farther away so they don’t have to wear glasses for driving but only for reading and doing things close-up.
- A trifocal IOL will help you see clearly in all three positions: near, middle and far. Unlike trifocal glasses, you will be able to see in all directions.
- A toric IOL is designed for patients with astigmatism where the cornea is flatter on one side than the other. This kind of IOL can either give you monofocal or trifocal vision.
Other than these IOL choices, your ophthalmologist may recommend phakic lenses. A phakic lens helps patients with severe nearsightedness. In this case, the eye’s lens is not removed, but this lens is added to it to correct the vision.
You will be on restriction for a few days following surgery with instructions on how much you can lift and bend and how much you are safely allowed to do. It is important to rest and to allow the eye to heal without straining it during this time.
What are the risks of cataract surgery?
As with any surgery or procedure, there are certain risks that come with cataract surgery2. These risks, though rare, include:
- Inflammation or swelling
- Eyelid problems
- Detachment of artificial lens
- Detachment of retina
- Secondary cataract
- Halos or glare from light
- Vision loss
What urgent conditions should I watch out for?
Complications from cataract surgery are very rare. However, if you experience any of the following, call your surgeon right away:
- Eyelid swelling
- Pain that doesn’t lessen with over-the-counter medications
- Increase or change in redness of the eye
- Flashes of light, halos, light spots in the eye
- Vision loss
Get an appointment for a cataract consultation today
If you suffer from blurred vision due to cataracts, we can help. Come to one of our two Colorado locations for a consultation to see if you are a good candidate for surgery so you can start to enjoy a more active lifestyle again. Call us today to make an appointment: