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Surgery for Presbyopia

Presbyopia is a common age-related condition in which near vision worsens due to the hardening of the lens of our eye. It causes people to have difficulty reading and performing other tasks that require sharp and focused close vision.

Symptoms begin around the age of 40 when you begin to see people with untreated presbyopia holding books, magazines, newspapers, and menus at arm’s length in order to focus properly and avoid eye strain. Other symptoms include headaches or fatigue when trying to focus on something at close range.

Causes of Presbyopia

During our youth, the lens of our eye and the muscles that control it are flexible and soft, allowing us to focus on close objects and shift focus from close to distant objects without difficulty. As the eye ages however, both the lens and the muscle fibers begin to harden, making near vision a greater challenge.

Surgical Treatment for Presbyopia

The most common form of treatment for presbyopia is wearing reading glasses, bifocals or progressive lenses. Bifocal and multifocals are also available in contact lenses for those who prefer to be glasses-free. A third option, however, is a number of surgical procedures that allow you the freedom of correcting your near vision without the use of glasses or contact lenses.

LASIK

Monovision LASIK

Monovision is a technique that began with presbyopia-correcting contact lenses designed for individuals with presbyopia and nearsightedness or astigmatism. Each eye gets a different lens power – one lens is used in the dominant eye to correct for distance vision and the other for near vision. The eyes adapt to the two lens powers by learning to use the appropriate eye for the necessary distance power. Monovision LASIK surgery is based on the same principle of correcting each eye for a different refractive power and has shown just as high if not higher success rates than the contact lens technique. Usually, patients will try out monovision with contacts first to ensure that it works and that the eyes adapt properly.

PresbyLASIK

PresbyLASIK is a procedure that is currently available in Canada and Europe and undergoing clinical trials in the United States. As opposed to monovision LASIK, this procedure is a multifocal alternative in which different rings of refractive power are created on the cornea, similar to multifocal lenses. This provides vision correction at all distances simultaneously.

Conductive Keratoplasty (CK)

Conductive Keratoplasty uses radio waves via a hand-held instrument to mold the corneal surface to improve near vision. The procedure can be done on one eye using the monovision principle and is a good solution for those that do not need vision correction for nearsightedness or astigmatism. The effects of CK, however are not permanent and the improvement in near vision will diminish over time.

Corneal Inlays or Onlays

Corneal inlays and onlays involve surgically implanting a small lens into the eye to increase focus and near vision. The distinction between inlays and onlays is in where the lens is placed on the eye.

Refractive Lens Exchange

In refractive lens exchange the eye’s hardened lens is replaced with an artificial lens called an intraocular lens (IOL) to provide multifocal vision. This surgery is similar to and often done in conjunction with cataract surgery.

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Dear Northwood Vision patient,

COVID-19 has the potential to cause grave harm to many of the citizens in our population. According to Harvard epidemiologist Dr. Mark Lipsitch it is likely that at least between 40-70 % of the population will become infected with COVID-19. This virus is twice as contagious as the flu. About 80 percent will not have severe concerns, but based on the current data, 20% of the infected will become severe or critical, needing some form of hospital care to do well. Currently, about 30 % of those who become classified as severe based on WHO classification, will not survive. These are the unfortunate realities at the moment.

Meanwhile, at Northwood Vision, we want to do as much as possible to minimize this risk, to prevent mortality and long term side effects, while doing our best to provide the services our patients need. We are convinced you care about these same things. (Read more)

Here is what we are asking you to do to make a smaller exposure footprint:

  1. If you have any symptoms of a cold or flu (coughing, fever, difficulty breathing, running nose, etc), please reschedule your appointment for at least one month from now.
  2. Try not to touch any surfaces in the office you do not have to touch.
  3. If you are trying on glasses, DO NOT put the frames back on the shelf. Rather, we will collect them from you for proper cleaning before they are returned to the shelves.
  4. If you are ordering contact lenses, a year supply (and some 6 month supplies) order can be direct shipped to your home at no cost. Please take advantage of this so you don’t have to come into the office more than necessary.
  5. If you do need to come into the office for an adjustment, please call the office at 727-725-5558 when you arrive in your vehicle. We will let you know if there is a wait and will put you on a list so we can call or text you to come therefore minimizing the time you are in the enclosed space of our office.
  6. Please come to your appointment with the least number of people possible to reduce exposure to them and to others at the office.
  7. If you have any loved ones that have been exposed to the virus or certainly if they have symptoms of a respiratory illness, please wear a mask in case you are an asymptomatic carrier, or if possible, wait at least 4 weeks before coming in for non-essential care.

In an effort to protect you, here is what we are doing to help lower your risk:

  1. All surfaces in the office will be cleaned several times per day with antiviral/antibacterial cleaner. Surfaces in the exam room will be cleaned thoroughly in between each patient.
  2. No sick or symptomatic staff will be permitted to work while sick with a known viral respiratory infection or symptoms, or while directly caring for a sick relative/friend.
  3. For your safety, payments can be done ahead of time over the phone if you call ahead. This will decrease the amount of time you are in the store and your exposure risk in our enclosed space.
  4. No glasses frames other patients try on will be put back on display until the frames are cleaned with an antiviral cleanser.
  5. We are actively asking patients to reschedule for 4 weeks later if they have any symptoms themselves or in their family/ social network.
  6. We are giving options for patients to acquire goods by mail rather than coming into the store.
  7. We altering our schedule to decrease the number of patients that might be in the office at the same time to maximize social distancing.
  8. We are practicing frequent hand washing at our office to protect you and each other.
  9. We will ask patients to reschedule if they present to our clinic with a cough or other COVID-19 symptoms.

Thank you for your patience and understanding during this stressful and trying time. Let us all work together to lower risk of the spread so that less people die and less people have permanent side effects from COVID-19. Each of us can do our part. May God bless each of you and keep you well. Thank you for your understanding and care for your fellow humans.

Dr. Christopher K. Keats, OD