Multifocal intraocular lenses (IOLs) are used to replace cloudy lenses in people with cataracts.They might also be considered for people with presbyopia.
Presbyopia: This eye condition is considered a natural part of the aging process. People can start to notice symptoms as early as their 40s. It continues to progress as people get older.The symptoms associated with presbyopia include:
• At a normal reading distance, vision is blurry.
• To make the material clearer, the person holds reading material at a further distance.
• Headaches and eyestrain, especially when doing up-close work or reading.
The lenses use different optical powers at different areas across the lens. This allows images at a variety of distances to focus on the retina. It is best if someone gets the implants in both eyes rather than just one.
If you need cataract surgery and you want the greatest freedom from eyeglasses after surgery, you might want to consider multifocal IOLs to expand your range of clear vision.
These multifocal IOLs are in many ways similar to bifocal and multifocal contact lenses. And because multifocal IOLs are implanted inside the eye, they don’t require any care and routine replacement like contact lenses do.
All forms of the surgery is carried out using anaesthetic eye drops to numb the eye, you will feel no pain. Implanting multifocal IOLs is nearly the same as cataract surgery. It involves removing the natural lens so the surgeon can put the multifocal lens into place. It takes just 20-25 minutes per eye. Once the surgery is over, no stitches are put into the incisions since they will close by themselves. The doctor puts a shield over the eye, and people remain in a recovery room for up to 30 minutes. After this, people can go home to continue with recovery.
Following the procedure, people may need to shield their eyes and avoid getting water in the eye. Surgeon will prescribe eyedrops. The eyedrops are typically antibiotics to reduce the risk of infection.If you are interested in heavy sports you should take a break for 3 weeks.
It can take a little time for people to adapt to these lenses. This is because the focusing power the lenses provide is different than what people are used to. The brain needs time to adjust to the new way of focusing.
The success rate is very high. This surgery is safe, and life changing for millions of patients who have this successful procedure every year.
Contraindications for Multifocal IOLs
Prior to making a decision on the operation, an analysis of the patient’s general state of health and the results of an examination of his visual system are mandatory.
Among the contraindications to the operation to replace the lens can be identified:
• Age-related macular degeneration
• Diabetic damage to the retina
• Strabismus
• Diseases associated with a violation of the cornea shape
• Uncontrolled glaucoma.
• Advanced dry eye.Any pre-existing conditions need to be treated prior to surgery to ensure good outcomes,
• Weak zonules : They could dislocate if implant lenses in eyes with weak zonular support.
• Previous retinal detachment in either eye.
• A relatively young patient.
• Congenital cataracts and cataracts associated with certain other ocular abnormalities ( recurrent iritis, essential iris atrophy)