- 1 What are trifocal intraocular lenses?
- 2 What are they used for?
- 3 For whom is the use of trifocal intraocular lenses indicated?
- 4 Differences compared to other types of intraocular lenses
- 5 How are they implanted?
- 6 Risks
- 7 Postoperative period of surgery with trifocal intraocular lenses
- 8 How long does each trifocal lens last?
Patients who have trouble seeing at different distances may use the trifocal intraocular lenses. It is a solution that is simple to implement, with little risk and lasts a lifetime.
En Área Oftalmológica Avanzada We explain everything you need to know about trifocal intraocular lenses.
What are trifocal intraocular lenses?
The trifocal intraocular lenses they are a solution to have a good vision in short, intermediate and far distances. Allow definitely fix the Presbyopia or eyestrain and Cataracts without having to use glasses or contact lenses after the intervention.
Patients who have a trifocal intraocular lens implanted enjoy a clear vision at all three distances (near, middle and far).
What are they used for?
With trifocal intraocular lenses the patient can see well without the need to wear glasses or contact lenses, regardless of distance and lighting thanks to the elimination of the previous refractive problem.
One of the characteristics of these intraocular lenses is that they allow correct astigmatism. In these cases, we carry out a study of the eye prior to the intervention where we extract the necessary data to make a trifocal lens specific to the specific needs of the patient. This type of lens is known as toric trifocal intraocular lens.
This type of intraocular lens is especially indicated for people who suffer from presbyopia or cataracts and want to regain vision free of glasses or contact lenses. Thanks to this effect, this type of intraocular lens is known as premium.
Thanks to its use, daily activities such as reading, watching TV, driving or playing sports.
It is important to note that, to successfully implant this type of intraocular lens, It's fundamental count on an expert team of surgeons in this surgical technique as well as the technology necessary to calculate them and a properly equipped operating room to perform the surgery with the maximum guarantees
For whom is the use of trifocal intraocular lenses indicated?
There are two cases in which they are recommended this type of lens:
Presbyopia: from the age of 40 or 50
They are implanted mainly in patients with Presbyopia or eyestrain, a very common pathology in people over 40 or 50 years old. These patients may also have a refractive defect complementary that makes it difficult for them to see at certain distances, such as myopia, farsightedness and / or astigmatism (toric intraocular lens).
Cataracts: from the age of 60
Trifocal intraocular lenses are also very commonly used in cataract surgery. This lens is especially indicated in those patients who have a very active life and they do not want to depend on the use of glasses or contact lenses after the intervention.
To indicate your implant, we carry out a thorough study of the anatomy of the eye as well as the needs of the patient.
For people with vision problems
The people that have vision problems from different distances they must change glasses constantly, according to the focus needs they have at all times.
They also often use progressive glasses, which are difficult to fit and are very expensive.
A good solution for these patients is the trifocal intraocular lens. With a simple operation they can improve their vision, at any distance and without using contact lenses or glasses.
Differences compared to other types of intraocular lenses
Among the different types of intraocular lenses we find the main differences:
- Lmonofocal intraocular entity: Provides sharp single-focus vision, near vision, and leaves intermediate and distance vision uncorrected, requiring the use of glasses for these distances.
- multifocal intraocular lens: Grants clear vision in two foci, near and far, but does not correct intermediate focus.
- trifocal intraocular lens: Provides a clear vision in all three foci: near, intermediate and far, completely eliminating the use of glasses and contact lenses after the operation.
Other important differences between trifocal lenses and other types of intraocular lenses are the following characteristics:
- It is a multifocal intraocular lens generation.
- They have evolved to designs that deliver great results with hardly any inconvenience.
- All multifocal lenses, whether bifocal or trifocal, produce certain halos nocturnal during the first two or three months after the intervention, which are quite annoying. But with trifocal lenses, the patient perceive them to a lesser extent.
How are they implanted?
The trifocal lens is placed using a surgery performed under local anesthesia. It consists of substituting the content of the crystalline, through the technique of phacoemulsification, by a folded lens that enters the lens capsule.
This lens unfolds and focuses, for which it is necessary that the multifocal effects are always concentric to the visual axis. The design of trifocal lenses allows focus on their own very satisfactorily.
This intervention is ambulatory, which means that we give discharge the patient the same day of the operation. The next day he has to return to the consultation to carry out a revision of the surgery and check that the postoperative period does not present setbacks.
Although it is not common, the implantation of trifocal multifocal lenses can lead to some complications. Among the most frequent we find a slight loss of quality of vision for a few days due to the process of adaptation and recovery from surgery.
The most serious and very rare risks are those of any eye surgery: expulsive hemorrhages or intraocular infections.
Postoperative period of surgery with trifocal intraocular lenses
During the first week after the intervention, the patient you should not lift weights, read, expose yourself excessively to screens, or strain your eyes.
After that time you can do normal activities. These recommendations are general, therefore the ophthalmologist may recommend variations according to each case.
In general terms, it is a surgery in which the patient recovers quickly thanks to the characteristics of trifocal intraocular lenses, which promotes visual neuroadaptation.
How long does each trifocal lens last?
these lenses last a lifetime.
En Área Oftalmológica Avanzada We are experts in trifocal intraocular lenses. If you have any questions, please contact us. We will be pleased to assist you!