What
exactly are multifocal intraocular lenses?
Multifocal Intraocular Lenses are
those that have multiple points of focus ─ two or more. These lenses allow a
person to focus at different distances, both near and far, simultaneously. Distant
as well as near vision can be addressed at the same time, thus diminishing or
eliminating the need of spectacles or contact lenses.
What
are the different options of multifocal lenses to choose from?
You can make your pick from:
- Aspheric & Diffractive Multifocal IOL (Such as TECNIS by AMO)
- Diffractive multifocal IOL (Such as ReSTOR by Alcon Laboratories)
- Accomadative IOL (Such asCrystalens by Bausch & Lomb)
- Refractive multifocal IOL (Such as ReZOOM by Advanced Medical Optics)
How
can I be sure whether diffractive/ refractive multifocal IOL is suitable for me?
An eye specialist, after a thorough
check-up of your eye(s), will be able to analyse and decide whether you could
opt for multifocal lenses or not. The eye surgeon may also take in account your
lifestyle, including reading and driving habits, to assert the treatment’s
suitability to you.
What
are the benefits of diffractive/ refractive multifocal IOL?
Getting multifocal lenses implanted
in the eyes during a cataract surgery is a common way of getting rid of
glasses.
Diffractive multifocal lenses will
ensure good vision, be it near or far. However, the intermediate vision may
vary from person to person. For instance, a person might feel the need to sit
closer to the monitor while working on a computer.
The refractive multifocal lens offer
outstanding distance and intermediate vision. The near vision may vary and some
patients may not be able to read or see anything that is too small.
Are
there any disadvantages of diffractive/ refractive multifocal IOL?
There could be a chance that a
patient might still require wearing glasses after getting the implants. Around
20% patients who get multifocal lenses might noticeglare and haloes around
lights, especially at night. This could lead to discomfort while driving. In
majority of cases, patients get accustomed to the changes with time. A person
can also usespecial night driving spectacles to control the glare and haloes.
Is
there any other option than getting multifocal lenses?
You can go for monofocal lens
implantation as a primary alternative to the multifocal ones. Monofocal lenses
offer just one point of focus. In that case, you can either get a distant
vision lens or near vision lens implanted. You could get these lenses fixed in
both the eyes or just one of them as per the need. You could also opt for
monovision lenses if you are looking for a near vision implant for one eye and
a distant vision one for the other. Other than this, you could talk to the eye
surgeon about accommodating lens implants as an alternative to multifocal
lenses.
Do
I need to wear spectacles after cataract surgery?
If you are getting multifocal lens
implants, chances are high that you wouldn’t require glasses anymore. However,
the case will not be the same for monofocal lenses because you might need to
wear reading glasses even after the surgery. A number of clinical surveys by the
Food and Drug Administration (FDA) have proved that around 85% of patients who
got multifocal lens implants felt no need to wear glasses post the surgery.
Moreover, low corneal astigmatism and overall health of the eyes are also
crucial in deciding if you would need spectacles after cataract surgery and
implants or no.
Can
I get multifocal lens implant in just one eye?
Yes, you can get multifocal lens
implanted in one eye only. However, you could draw maximum benefits of multifocality
by getting them in both the eyes.
Can
anyone go for multifocal lens implants?
No, not everyone is recommended to
get multifocal lens implants. The suitability varies from one person to the
other. Those who are affected with ailments related to retina, glaucoma
affecting central vision, corneal astigmatism, corneal dystrophies, optic
neuropathy, or keratoconus are not advised to get these implants. Also, an eye
specialist will assess your condition, requirements and lifestyle before deciding
whether getting multifocal lens implants would be beneficial for you or not.
How
much time will the recovery processafter cataract surgery?
The recovery process post cataract
surgery or after getting monofocal or multifocal lens implants is quick. A
patient may resume his or her daily activities within a couple of days after
the surgery. However, it may take some
time for the brain to adapt to the new optical system, just like how it is when
a person starts wearing a new pair glasses. This neural adaption could take a
few weeks or a couple of months all together. But the recipient will eventually
get the hang of it and will experience better vision.for more, visit- https://www.facebook.com/public/Dr-Parul-Sharma
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