You pick up your phone to read a message, and you have to stretch your arm as far as you can just to say the words. It’s frustrating, and you’ve had enough. You think, “That’s it, I’m going to have one of those 20-minute surgeries to get rid of these glasses forever.”
Before you do that, let me tell you about a 62-year-old woman we’ll call Marta. She shared in the comments of a video that she was in the same boat. Completely fed up with her dependence on glasses, she underwent surgery to get intraocular lenses. Shortly after the procedure, I was able to watch TV perfectly. But at night, you start seeing huge, concentric rings around the car’s headlights. This terrified her, and she became afraid to drive. So, what was happening to Marta? Why was she experiencing this glare with such a modern and advanced procedure? This is what we will detail here. I’ll explain the ins and outs of intraocular lenses, what exactly they put in your eye, and how to choose the right lens for you to avoid the problems Marta encountered. (Based on the insights of Dr. Alberto Sanagstín)
Key takeaways
- Why do you need glasses: As you age, your eye’s natural lens becomes hardened (presbyopia) and can later become cloudy (cataracts), causing blurry vision.
- Not one size fits all: There are different types of intraocular lenses (monofocal, multifocal, EDOF), each with unique pros and cons. The choice is between maximum clarity and maximum freedom of glasses.
- Role of the brain: Multifocal lenses require a period of “neuroadaptation,” where your brain learns to filter out images, which may cause temporary side effects such as halos and glare.
- The procedure is quick and painless: The 15-minute surgery is usually performed using anesthetic drops, not needles, and involves replacing the old lens with a new, foldable lens.
- Recovery is crucial: Following post-operative rules (no rubbing or heavy lifting) is vital for proper healing. Learn the difference between normal symptoms and red flags that require an emergency visit.
- Lenses do not expire: Modern lenses are designed to last a lifetime. Blurring after years is usually due to reversible clouding of the lens capsule, not a defective lens.
1. Why do you suddenly need eye surgery?
Before we talk about surgical interventions, let’s ask a simple question: Why do you suddenly need eye surgery? Imagine that your eye is a room with a window to the world. This window pane is your eye’s natural lens, the crystalline lens. When you’re young, this lens is like a brand new rubber stamp – extremely flexible and completely transparent. It easily expands and contracts to focus on near and far objects without you even thinking about it.
But what happens after the age of 45? Trouble starts. That flexible lens begins to thicken from the inside out, adding layers like the rings of an old tree. He becomes stiff and loses his ability to focus up close. We call this age-related hyperopia, or presbyopia. The window no longer flexes, which is why the small print becomes blurry. If more years pass, something worse happens: the scleral lens begins to darken from the inside, losing its transparency. This is what we call a Cataracts. Forget the myth that it is a growth film more The eye. it’s not. The window glass itself has become dirty on the inside, making it so cloudy that light cannot pass through. At this point, no cloth can clean the glass. You have to dismantle the window and install a new one. This new window is the intraocular lens (IOL), a piece of fine mechanical engineering that will occupy the exact spot of the old lens.
2. Choosing your new lens: The mistake you don’t want to make
The biggest mistake is to think that there is only one standard replacement part. This is not true. You have to choose the right lens for your lifestyle; Otherwise you might end up like Marta. When you sit down with your surgeon, he or she will give you a list of strange names: monofocal, multifocal, EDOF. Why so many options? Because there is no one perfect magic lens. You have to choose what is more important to you: maximum clarity or maximum freedom from glasses.
Let’s bring this into the real world. Imagine that lenses are like lighting systems:
- Monofocal lenses: Think of this as a powerful halogen work torch. It illuminates the end of the street with absolute clarity. For driving it’s the best but if you want to read your phone the lights won’t reach. You will need to turn on a portable flashlight – your reading glasses. This is the simplest and safest option, and is often covered by public health systems or private insurance, while other options usually come at an additional cost.
- Multifocal lenses: This is where Marta went wrong. This lens is like a smart electrical system that turns on the far, medium and near lights at once. The problem? Your eyes are full of images. Your brain must learn to filter out items it doesn’t need. This learning process is called neuroadaptation. What they may not have explained to Marta was that while her brain was installing the new wiring, temporary errors were normal. Seeing halos or rings of light at night does not mean that the lens is broken; It means your brain is adapting. These annoying flares usually go away within a few months, although some patients may need up to a year.
- EDOF (Extended Depth of Focus) lenses: This is the compromise. You can see well at a distance and on a computer screen, and have much less night glare, although some may still be present. The trade-off you have to accept is a very small print. To read the small print on a medicine bottle, for example, you’ll likely need a little help from a pair of glasses.
3. What if you suffer from astigmatism?
This is a crucial factor. Astigmatism means that your eye is not perfectly round like a football; It’s shaped like a rugby ball. In this case, they are called special lenses Toric lenses He comes out. They correct cataracts and astigmatism at the same time – a two-for-one deal. If you have astigmatism, be sure to ask your eye doctor about toric options.
4. When is surgery not an option?
Be careful with what you read on the Internet. It may seem like you can choose any lens you want, but if you have pre-existing conditions like glaucoma, corneal problems, or retinal damage, getting a multifocal lens can be a big mistake. It can lead to more blur and worse glare. In these cases, a monofocal lens is not a “plan B”; It is the safest and most medical option for you. That’s why your first consultation is to get information, not to sign papers. You need a complete revision of your eye foundation to avoid regrets later.
5. What actually happens during the 15-minute procedure?
Understandably, this part causes a lot of anxiety. The thought of someone touching your eyes raises all the alarms in your head. But let’s defuse this fear with facts. The most common question is: “Are they going to stick a needle in my eye? Will it hurt?” The short answer is almost always no. The standard method uses anesthetic drops that numb the surface of your eye for a few minutes. You will not feel pain during the 15-minute surgery. The only thing you may notice is a dull pressure, as if someone is gently pressing on your eye. It’s like the vibration in a dentist’s office, but without any of the sharp sensations.
Within a quarter of an hour, the surgeon makes a small incision, only a few millimeters long. It is so small that it acts like a valve, closing itself when the procedure is finished without the need for stitches. Through this small opening, the old scleral lens material is pulled out, leaving the lens capsule – the natural sac that holds the lens – completely clean. The new folded lens is inserted through the same hole. Once inside, it opens like a parachute and fits perfectly inside the capsule. What if I sneeze or cough? Don’t worry. The lens has small arms, or haptic arms, that hold it in place from the first second. Within a few weeks, the surrounding tissue heals, cementing it there for life.
6. Your recovery: the first few weeks
When you leave the clinic, you go out on your own. When you come home and look in the mirror, you may see a little fog. Don’t panic. This is normal. The eye becomes inflamed as it recovers and restarts. The first week is crucial and you must follow some rules:
- Do not rub your eyes. The wound closes itself, but it is fresh cement and takes about 48 hours to set. Rubbing can break this seal.
- Do not lift heavy weights or bend suddenly. This puts extra pressure on the eye’s inner tubes, which the newly operated eye cannot handle.
- Use prescribed eye drops exactly as directed.
- Wear sunglasses. Your eyes will be sensitive to light and glare.
7. Warning signs: When to call your doctor immediately
You need to distinguish between normal discomfort and a serious problem. Let’s use the traffic light system:
- Green light (normal): Seeing halos at night at first, feeling a gritty or sandy sensation, or noticing some floaters that come and go. This means your eye is healing. Continue your drops and wait for your scheduled appointment.
- Yellow light (warning): If you experience persistent dry eyes or flashes of light that do not improve after several months, call the clinic and request an early follow-up to find out what is happening.
- Red Light (Emergency): If you notice any of the following, don’t wait until tomorrow. Go to the emergency room today:
- Severe pain that is barely affected by the analgesic.
- A Fiery red eye With yellow discharge or secretions, which may indicate a serious infection.
- A Sudden decrease in visionlike a falling curtain or a shadow covering half your vision. For people with severe myopia, this could be a retinal detachment. If you suddenly see flashes of light or a storm of new floaters, go to the hospital immediately. If caught early, the prognosis is excellent.
8. The ten-year myth: Do intraocular lenses expire?
Is it true that lenses expire after 10 years and require another surgery? No, this is a false rumour. Today’s lenses are designed to last a lifetime. Patients who had surgery 30 years ago still have their original, perfectly functioning lenses. So where does this myth come from?
Remember, we place the new lens inside your natural eye capsule. The lens itself doesn’t expire, but over the years, that back case can become cloudy. It’s as if your new window pane is perfectly clean, but the frame around it becomes foggy. Suddenly, years later, your vision becomes blurry again. You may think your cataracts have returned, but they haven’t. It’s the capsule. The good news is that you do not need to return to the operating room. In a simple two-minute office procedure, a YAG laser is used to painlessly remove the haze. You’ll regain your clarity within hours, and for most people, this only needs to be done once in a lifetime.
9. What if you only have presbyopia (no cataracts)?
Here’s the question: “I’m 55 years old. Presbyopia is making me miserable, but my lens is still clear. Should I wait for my cataracts?” Not necessarily. There is a procedure called refractive lens exchange (RLE), which is exactly the same surgery we discussed, but performed on a healthy eye. The clear natural lens is removed and replaced with an intraocular lens. The big advantage is that you say goodbye to glasses and you will never get cataracts. But there is another side. You bear the risks of performing surgery on a healthy eye. This is an especially important consideration if you are highly nearsighted, because that eye is structurally more fragile. It is a serious decision that requires a thorough discussion with your surgeon to evaluate whether the convenience of not wearing glasses is worth the surgical risk.
10. Why do some ophthalmologists still wear glasses?
I get this question sometimes. People ask, “If this surgery is so safe, why do you, the doctor, still wear glasses?” Some even make ironic references to ophthalmologists who wear glasses. In my case, it’s simple: I don’t have cataracts. For me, putting a scalpel to my good eye to get rid of my progressive glasses isn’t worth the risk, especially since I’m also nearsighted. However, the moment my natural lens loses its transparency, I will have the operation without hesitation.
The glasses are not broken or old. It is the safest tool we have until surgery becomes a medical necessity. By the way, as for Marta, she later updated her comment. Four months after surgery, her night circles were almost completely gone. Her mind had adjusted, and she could finally drive at night without fear.
source: Dr. Alberto Sanagstín



