Lenses that allow us to see only distant objects are called monofocal (single focus), lenses that enable us to see both near and far are bifocal (two focus), and lenses that allow us to see distant, intermediate, and near objects are called trifocal (three focus) lenses. After a detailed examination of the patient, the most suitable lens is determined according to the condition of eye health.
Trifocal lenses, the latest version of multi-focal lenses, provide clear vision at a distance, and completely eliminate the need for glasses in a range of 20-80 cm for near vision. This is a very comfortable method especially for people who use computers continuously.
In Which Situations are Trifocal Lenses Applied?
It is a method that can be applied to patients with cataracts, experiencing distant and near vision problems, or those with high eye numbers who are not suitable for laser treatment. It can also be applied to patients with myopia, hypermetropia, and astigmatism who do not want to use glasses and contact lenses.
Are Trifocal Lenses Permanent?
Trifocal lenses should not be confused with other lenses. They are not like daily, weekly, or monthly used lenses. A surgical operation is performed to remove the unhealthy lens within the eye and replace it with a permanent lens. These lenses do not lose efficiency over time, hence they are permanent.
Are There Any Side Effects of Trifocal Lenses?
Trifocal lenses can be applied to all patients experiencing vision problems and deemed suitable by the physician for this method. It is an important operation that requires expertise, so it is very important to complete this process under the supervision of a specialist physician. The area to be operated on must be very well centered and there should be no displacement after the operation. After proper guidance and a successful operation, no side effects have been observed.
How Long Does the Operation Take?
The operation is completed in about 10-15 minutes. During the operation, the patient does not feel pain or discomfort. The patient can resume social life the next day; however, it is recommended to avoid very heavy activities for 15-20 days.
In Which Cases are Trifocal Lenses not Applicable?
Trifocal lens application should not be performed on patients with diabetic eye bleeding or retinal problems, macular degeneration, or corneal problems such as keratoconus.
As the name suggests, a trifocal lens has a three-focus structure. Thanks to trifocal intraocular lenses, patients can achieve clear vision at distant, intermediate, and near distances. This technology is developed to enable cataract patients to live without glasses after surgery. Compared to traditional monofocal or bifocal lenses, the trifocal lens offers a wider field of view, enhancing the quality of life for patients.
What are the Features of Trifocal Intraocular Lenses?
Trifocal intraocular lenses have a special optical design to clearly see objects at different distances. Once placed into the eye, it offers a permanent solution and does not show performance loss over the years. These lenses enable patients to read books, use a computer, and see clearly while driving after eye surgery.
How is Trifocal Lens Surgery Performed?
Trifocal lens surgery is performed by a specialist eye doctor. During the surgery, the patient's natural lens is removed and an artificial trifocal intraocular lens is placed. The operation is completed under local anesthesia in about 10-15 minutes. The recovery process after trifocal lens surgery is quite fast and most patients can return to normal life the next day. It is important to avoid strenuous physical activities for a while.
Frequently Asked Questions
Who can have trifocal lenses?
Trifocal lenses can be applied to patients facing cataract problems, with distant and near vision issues, those not suitable for laser surgery, or those wanting to be free from glasses, such as myopic, hypermetropic, and astigmatic patients. Suitability is determined after a detailed eye examination by a specialist physician.
Can trifocal intraocular lenses be used for a lifetime?
Yes, trifocal intraocular lenses are designed to be used for a lifetime. After a proper surgical application, trifocal lenses do not experience loss of function over time and do not need to be replaced.
What should be considered after trifocal lens surgery?
After trifocal lens surgery, it is recommended for patients to protect their eyes, use the drops recommended by the doctor regularly, and avoid heavy exercises especially in the first few weeks. Avoid movements like scratching or pressing the eye.
Do trifocal lenses have disadvantages?
With proper patient selection and application by an experienced doctor, there is generally no serious disadvantage observed with trifocal lenses. Rarely, some patients may initially notice glare or mild reflections in night lights. This condition usually improves over time.