Mangawhai Optometrists with

'Old fashioned service with new technology'

is our belief – Service and the best quality eye care is gives you the best vision so you can enjoy the things that you do all available in Mangawhai Heads

Cataract Surgery Information

Cataract Surgery Information

If you’ve been diagnosed as having a cataract, there is no need to worry. Cataracts are nothing unusual. They frequently occur as part of the eye’s ageing process. But with cataracts it is possible to turn the clock back. The latest advances in microsurgery are remarkably successful, giving improved visual results and dramatically shortened recovery time. There is no need for any time in hospital.

The care, expertise and technology available to you at Eye Institute let you recapture something of that youthful outlook you thought you’d never lose. We’re proud to provide a level of excellence without equal in New Zealand eye care. In fact at Eye Institute we pioneered no-stitch cataract surgery and we’re continually refining our techniques. Not all cataracts need surgery, but when deteriorating vision begins to interfere with your work or lifestyle it’s time you gave it serious consideration. We’ll do all we can to help you achieve your best decision.


Cataract Surgery Information
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What are cataracts?
CataractsThe lens of the human eye is similar in operation to the lens of a camera. Located near the front of the eye, the lens focuses light on to the retina at the back of the eye. Light passes through it to produce a sharp image on the retina. When the lens of the eye becomes cloudy or opaque, light is unable to pass through it and your vision is blurred. This condition is known as a cataract. There are many misconceptions about cataracts. For instance, a cataract is not a film visible on the outside of the eye. It is not caused from the over-use of the eyes, and using the eyes does not make it worse. 

Cataracts usually develop over a period of many months. They can occur as early as age 40. Occasionally they may occur in infants or children as a congenital defect.

How do cataracts affect you? 
Depending on the size and location of the cloudy areas in a lens, you may not even be aware that a cataract is developing. As the cataract progresses, you will notice a deterioration of your distance and reading vision. You may experience hazy, fuzzy and blurred vision. Double vision may also occur when a cataract is beginning to form. Your eyes may also be more sensitive to light and glare, making night driving difficult.

There may be a need to change eyeglass prescriptions in the early stages, which may help temporarily. As the cataract develops you’ll find stronger glasses no longer improve your sight.

Revolutionary no-stitch cataract surgery
At Eye Institute we use phaco-emulsification which is the state-of-the-art advanced technique that allows the cataract to be removed through a very small, secure opening about 3mm in length.

This type of surgery means that your recovery period is dramatically shortened. Normal activities such as driving, walking, sports etc. can usually be commenced within a few days. Note that cataracts are not removed by laser. However, occasionally laser surgery is used to remove any thickening of the membrane behind the lens implant, which sometimes occurs months or years after surgery.

Refractive - Cataract Surgery
Although you may have always needed to wear glasses, you may be surprised to know that you may not be as reliant on glasses after surgery. For this reason, we now call this surgery “refractive-cataract surgery”. Before your surgery, your surgeon will discuss with you your requirements and what refractive outcome would be best for you. Just as there are bifocal and progressive spectacles, so there are different types of lenses that we can put in your eye during refractive-cataract surgery to give you the vision that best meets your requirements. Eye Institute uses the latest technology, including the “Zeiss IOL Master” and the “Nidek OPD scan” to ensure that the lens we select is correct for you.

These include:

  1. Wavefront-corrected single-focus lenses. 
    These can give you your very best distance vision, and can correct about all of the short or long sightedness that you have. You will usually need glasses for closer vision.

  2. Dual-Focus lenses. 
    These lenses, of which there are a few different varieties can give you both a distance focus and a near focus, so that 80% of people find that they don’t need to wear glasses for either reading or looking in the distance. Because of the way they work, there is a small reduction in clarity compared to single-focus lenses.

  3. Astigmatism correcting lenses. 
    Many people have a natural focusing problem called astigmatism, which is normally not corrected with single-focus lenses. Toric lenses, however, can correct varying degrees of astigmatism. It is obviously important that, together with your surgeon, you identify what your visual requirements are so that we can give you the vision that best suits your needs.

Convenient day-stay surgery
Eye Institute offers state-of-the-art facilities for day stay eye surgery. You’ll enjoy quicker recovery and less disruption to your everyday activities.

Cataract Surgery Procedure:

  1. Drops will be put into your eye to dilate the pupil.

  2. When you arrive in the operating suite you will be given a mild sedative if you wish.

  3. A painless anaesthetic will be administered. You’ve the choice of anaesthetic jelly or a local anaesthetic injection. More and more people are now choosing cataract surgery using anaesthetic jelly alone.

  4. The skin around the eye will be cleaned. Sterile drapes will be placed around your head and face. You will be aware of voices during the procedure but for the most part you will be drowsy, due to medication. An anaesthetist or nurse will be with you continuously to ensure your safety and comfort during the procedure.

  5. There is minimal discomfort throughout the procedure and afterwards. After surgery you rest awhile in a lazy-boy chair with tea or coffee. Most patients are able to return home within an hour.