How cataract surgery works
Educational content. It does not replace an appointment with an ophthalmologist.
Step by step
How the surgery works
The only effective treatment for cataract is surgery, and it is recommended based on how much vision is affected, not on the patient's age. It is a microscopic, highly complex procedure, but very safe given current technology and the surgeon's experience.
-
Step 1: Evaluation
The ophthalmologist examines your eyes, measures your prescription and recommends the lens best suited to your lifestyle.
-
Step 2: Numbing drops
Surgery is done with local anesthesia, usually only numbing eye drops. You stay awake and calm throughout.
-
Step 3: Micro-incision
Through an incision of about two millimeters, the cloudy lens is broken into tiny pieces and removed by suction.
-
Step 4: New lens
The intraocular lens is implanted in place of the natural lens. In the same surgery it is possible to correct nearsightedness, farsightedness and astigmatism.
The YouTube video only loads when you click.
Intraocular lenses
Which lens is best?
Only the ophthalmologist can recommend the best type of intraocular lens for each case, considering current vision, eye health, personality and lifestyle. There are different lens options to correct, besides cataract, near, intermediate and distance vision difficulties, which can eliminate the need for glasses after surgery.
What matters most to you?
Tap the options and see which lenses fit your daily life.
-
Trifocal IOL
HOYA Vivinex Gemetric
Focus for distance, intermediate (computer, TV) and near (reading and phone). The broadest option for living independently from glasses.
-
Distance
Yes
-
Intermediate
Yes
-
Near
Yes
-
Astigmatism
No
-
-
Trifocal toric IOL
HOYA Vivinex Gemetric Toric
Combines all three distances and also corrects astigmatism in the same lens.
-
Distance
Yes
-
Intermediate
Yes
-
Near
Yes
-
Astigmatism
Yes
-
-
Monofocal plus IOL
HOYA Vivinex Impress
Excellent distance vision and better intermediate vision, for activities such as using a computer.
-
Distance
Yes
-
Intermediate
Yes
-
Near
No
-
Astigmatism
No
-
-
Monofocal IOL
HOYA iSert 255
Sharp focus for distance. Glasses may be needed for near vision.
-
Distance
Yes
-
Intermediate
No
-
Near
No
-
Astigmatism
No
-
-
Monofocal toric IOL
HOYA Vivinex Toric
Distance vision and astigmatism correction.
-
Distance
Yes
-
Intermediate
No
-
Near
No
-
Astigmatism
Yes
-
Lens comparison chart
| Lens | Distance | Intermediate | Near | Astigmatism |
|---|---|---|---|---|
| Trifocal IOL HOYA Vivinex Gemetric |
Yes | Yes | Yes | No |
| Trifocal toric IOL HOYA Vivinex Gemetric Toric |
Yes | Yes | Yes | Yes |
| Monofocal plus IOL HOYA Vivinex Impress |
Yes | Yes | No | No |
| Monofocal IOL HOYA iSert 255 |
Yes | No | No | No |
| Monofocal toric IOL HOYA Vivinex Toric |
Yes | No | No | Yes |
HOYA intraocular lenses use advanced technology. HOYA IOLs, small and flexible, come from the factory inside an injector used in surgery to implant them precisely through a minimal incision, with no risk of contamination. They are made of foldable acrylic material approved by the FDA (USA), PMDA (Japan), CE Mark (Europe), CFDA (China) and ANVISA (Brazil).
HOYA is a well-established Japanese company and a pioneer of blue-light-filtering lenses, which matter for visual comfort and for protecting the eyes from sunlight and from the artificial light of phones, computers and other digital devices.
Illustrative tool. Only the ophthalmologist recommends the ideal lens for your case.