CentraSight

CentraSight Implant

Centre for Sight is excited to anounce the arrival of the CentraSight Implant and treatment program for Age Related Macular Degeneration (ARMD). This implantable miniature telescope lens has the potential to truly transform a patients life. As revolutionary as it looks, the lens is effectively a telescope that fits into your eye in the same way as an intraocular lens for a standard cataract.

It is important to note that for anyone looking at this lens as a possible option you need to fill out the CentraSight IMT - Are you Suitable questionnaire.

What is CentraSight™ and the Telescope Implant?

The CentraSight treatment programme uses a tiny telescope, a CE Marked and FDA (Food & Drug Administration, USA) approved medical device, which is implanted inside the eye to improve vision and quality of life for individuals affected by End-Stage AMD.

The Implantable Miniature Telescope (by Dr. Isaac Lipshitz), about the size of a pea, is intended to improve distance and near vision in people who have lost central vision in both eyes because of End-Stage AMD. The telescope implant is surgically placed inside one eye. The implanted eye provides improved central vision while the other eye provides peripheral vision.

How does the CentraSight IMT work ?

The device acts as a telescope and magnifies an image by 2.7X. An object is magnified onto the retina and on areas of retina not affected by ARMD allowing patients to now see. Patients treated with the CentraSight IMT have gained 4 lines or more of vision.

The telescope implant is not a cure for End-Stage AMD. It will not restore vision to the level it was before you had AMD, and it will not completely correct your vision loss. Patients with this level of AMD have had to cease driving due to their vision; after the telescope procedure, although near and distance vision may improve, driving will not be possible because the implant does not restore normal vision and the field of view is restricted.

Am I a Candidate?

In general, to be considered a potential candidate for the telescope implant an ophthalmologist must first confirm that you:

  • Have irreversible End-Stage AMD resulting from either dry or wet AMD
  • Are no longer requiring drug treatment of your AMD
  • Have not had cataract surgery in the eye in which the telescope will be implanted
  • Meet age, vision, and cornea health requirements

After the ophthalmologist confirms that you are a potential candidate, your vision will be tested using an external telescope simulator. The results of the test and visual training/rehabilitation evaluation will help you and your ophthalmologist decide if you are likely to benefit from the CentraSight treatment programme. If so, the tests will also help you and your ophthalmologist discuss which eye should be treated and what your vision may be like after the treatment.

You can see if you are a potential candidate by filling in the 'CentraSight - Are you Suitable?' form.

The CentraSight treatment programme involves four steps that start with diagnosis and continue after surgery.

A member of your CentraSight team is involved at each step of the treatment. All CentraSight team members are highly qualified professionals, with special training in the CentraSight treatment programme and the Implantable Miniature Telescope Technology. The following pages explain what you can expect at each step of the programme.

The telescope implant is not a cure that "sees" for you. For the telescope implant to work for you, you will need to work with low vision specialists as well as practise on your own at home.

Realistic Goals:

  • Recognising faces of family and friends
  • Watching television
  • Reading
  • Various hobbies like painting, knitting or gardening

Unrealistic Goals:

  • Driving
  • Seeing a golf ball in flight
  • Playing tennis
  • Never having to use a magnifying glass again

Visual goals can be assessed with an external telescope simulation during pre-surgery evaluation visits. This testing simulates what might be achievable with implantation of the actual telescopic implant.

Your ophthalmologist will describe the risks and benefits of the telescope implant to you, including the risks of surgery.

1. Diagnosis

CentraSight Team Member: Ophthalmologist

To be considered as a possible candidate for the treatment, you must first be examined by an ophthalmologist to confirm that you have End-Stage AMD.

This will involve a thorough medical eye examination with investigations and scanning images of the back of the eye along with a review of your medical history, including any conditions that may make the procedure difficult for you or increase the likelihood of complications. Your ophthalmologist will explain the benefits and risks of the CentraSight treatment programme and answer any questions you may have.

2. Candidate Evaluation

CentraSight Team Members: Ophthalmologist, Low Vision Optometrist, Low Vision Rehabilitation Officer

The evaluation includes at least two appointments, including a low vision consultation performed by a low vision optometrist.

The candidate evaluation step includes testing your vision using external telescope simulators. The results of these tests can help give you and your CentraSight Team a good idea of what your vision may be like after the telescope implantation surgery and if the effect of the magnification in one eye will be useful to you. Low vision specialists will also talk to you about how your new vision status may affect your everyday life and how following a visual training/rehabilitation programme after surgery will help you reach your vision goals.

What are the Benefits of the Telescope Implant?

The effectiveness of the telescope implant has been demonstrated in FDA approved studies.

In results from a survey in the FDA clinical trial, patients who received the telescope implant generally reported that they were less dependent on others, less frustrated and worried about their vision, less limited in their ability to see, and better able to visit others and recognise facial expressions/reactions. Overall, the survey findings showed patients had a clinically important improvement in quality of life. *

An FDA study found that nine out of ten patients with the telescope implant improved vision by at least two lines on the eye chart *

What are the Risks of the Telescope Implant?

As with any medical intervention, potential risks and complications exist with the telescope implant.

The most common risks of the telescope surgery include inflammatory deposits on the device and increased pressure in the eye. Significant adverse events include corneal swelling, corneal transplant, and decrease in visual acuity. There is a risk that having the telescope implantation surgery could worsen your vision rather than improve it. Individual results may vary.

You should talk to your ophthalmologist about these and other potential risks to find out if the telescope implant is right for you. Additional information can be found at www.CentraSight.com.

* Hudson HL, et al. Ophthalmology. 2006.

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