If someone has an ocular comorbidity in either eye (eg, severe dry eye disease, irregular astigmatism, epiretinal membranes, macular degeneration), he or she is not eligible for a multifocal IOL. In my practice, this means that 50% of patients are ineligible. No. 2: Monofocal lens in the fellow eye.
Disadvantages of multifocal lenses:
Somewhere between five and ten per cent of patients who opt for this lens suffer some kind of halo or glare when looking at lights at night. However, many patients do adapt to this after a short period of time.
Difficulty seeing at close distances.
Some models of multifocal lenses focus on intermediate vision and distance, requiring reading glasses for closely held reading material, while others focus on close near vision, requiring glasses for intermediate vision.
Who is not suitable for lens replacement surgery? Lens replacement can correct issues with vision such as short-sightedness (myopia), long- sightedness (hyperopia), presbyopia, cataracts and astigmatism. If you are not affected by any of these conditions, lens replacement surgery is probably not suitable for you.
No, there is no set age limit on lens replacement surgery. In fact, the treatment can be highly beneficial to those aged over 60 as it is often used to remove cataracts that commonly develop in patients in this age group.
In general, after cataract surgery people do not need glasses for distance viewing– this means for activities such as driving, golf or watching TV, you should not need to continue wearing glasses. However, in many circumstances people still may need glasses for reading or near work.
The eye, the brain and the calendar.
Depending on the lens and the patient, neuroadaptation may happen sooner, later or not at all. The majority of patients will adapt to multifocal IOLs within six to 12 months, according to Dr. Maloney. But about 10 percent of patients never will adapt.
Uncorrected distance visual acuity of 20/40 or better at 6 months was achieved by 92% of patients in the multifocal IOL group and 97% of patients in the monofocal IOL group.
Getting used to multifocal lens implants can take time and varies from person to person. It may take a few days in some people particularly if they have been comfortable with multifocal contact lenses in the past. Others may take a 2-3 months or even 6 months. There are some people who may not get used to them at all.
Among the most common symptoms patients experience when wearing multifocal eyeglasses for the first time are headaches, nausea, dizziness and depth perception problems. You might feel a swim and sway effect, be uncomfortable using the stairs, and have a hard time focusing between intermediate and near distances.
Blurred vision can occur from a small residual refractive error, including astigmatism, after IOL implantation. In these cases, spectacle correction or excimer laser corneal refractive surgery can improve visual acuity to the desired level and help patients function under various lighting conditions.
Multifocal contact lenses allow you to see near, medium, and far distances with better visual acuity and less juggling of other devices, like wearing contacts and also wearing reading glasses. They are not for everyone, but they can be very helpful for some people who have more than one refractive error.
It cannot provide both distance focus and near focus without glasses (like the eye's natural lens does in a young person). Thus, after cataract surgery, eyeglasses are still needed in order to change the focus of your eye between far distance and near.
One of the most frequently asked questions in the clinic is why multifocal contacts are blurry in the distance. There is a little give and take that happens with the physics of bending light here. Multifocals essentially take away a bit of your distance clarity to allow you to see well up close.
Monovision can be the better choice for high prescriptions. Multifocals or bifocals may be unable to provide stronger prescriptions for people who need stronger prescriptions for higher levels of myopia (nearsightedness) or hyperopia (farsightedness).
Answer: Yes, it is OK to have a multifocal IOL (a bifocal-like intraocular lens implant that provides vision at near and far distances) placed in one eye and a monofocal IOL in the other eye.
PanOptix. Alcon's latest multifocal option, the PanOptix IOL, offers all three ranges of vision with minimal drop-off in between, said Dr. Greenwood, so it provides significant continuation of vision.
Answer: With the Panoptix lens or any multifocal lens, it is normal to have some glow as well as halos for the first six weeks or so. They generally tend to get better but do not completely go away.
Inflammation in the eye can happen after cataract surgery, but it is typically harmless. Any inflammation within the eye following cataract surgery is the body's natural response to having the eye's lens removed. This reaction causes blurry vision, but your eye doctor can prescribe medication to help.
For normal, well-focused eyes with an average level of HOAs, this interplay generally results in an optimum photopic pupil size of somewhere between 2 and 3 mm vis-à-vis visual acuity and retinal image quality.
Sometimes blurry vision is caused by PCO, a fairly common complication that can occur weeks, months or (more frequently) years after cataract surgery. It happens when the lens capsule, the membrane that holds your new, intraocular lens in place, becomes hazy or wrinkled and starts to cloud vision.
Yes, after cataract surgery, you need to wear sunglasses to protect your eyes from the sun. After surgery, your eyes are healing and are more sensitive to the sun's rays than usual.
It can take up to two weeks for your eyes to settle after lens surgery. You should attend your follow-up appointments during your refractive lens exchange recovery as planned and follow the advice given by your optometrist and your surgeon.
It is best to wait a few days after surgery to get temporary reading glasses to allow for some initial recovery of vision.