Cataract Surgery NZ

Cataract Surgery NZ; Cataracts are a common eye condition that affects people of all ages, but they are most commonly associated with the aging process. In New Zealand, cataract surgery is a widely performed procedure that has helped countless individuals regain their vision and improve their quality of life. In this comprehensive guide, we will explore everything you need to know about cataract surgery in New Zealand, from the basics of cataracts to the latest advancements in surgical techniques.

Understanding Cataracts

What Are Cataracts?

Cataracts are a clouding of the eye’s natural lens, which is normally clear and transparent. This clouding of the lens causes blurry vision and can significantly impact one’s ability to see clearly. Cataracts can develop in one or both eyes and can progress slowly or rapidly, depending on various factors such as age, genetics, and lifestyle.

Symptoms of Cataracts

Recognizing the symptoms of cataracts is essential for timely diagnosis and treatment. Some common symptoms include:

  1. Blurred or cloudy vision
  2. Difficulty seeing at night
  3. Increased sensitivity to glare from lights
  4. Frequent changes in eyeglass or contact lens prescriptions
  5. Seeing halos around lights
  6. Double vision in one eye
  7. Fading or yellowing of colors

If you or someone you know is experiencing any of these symptoms, it is crucial to consult an eye care specialist for a comprehensive eye examination.

Causes of Cataracts

Cataracts can develop due to various factors, including:

  1. Aging: The most common cause of cataracts is the natural aging process. As people get older, the proteins in their eye’s lens may clump together, leading to cloudiness.
  2. Genetics: Some individuals may have a genetic predisposition to developing cataracts earlier in life.
  3. Trauma: Eye injuries, such as those caused by accidents or surgery, can increase the risk of cataract formation.
  4. Medical Conditions: Conditions like diabetes, hypertension, and obesity can contribute to cataract development.
  5. Medications: Long-term use of certain medications, such as corticosteroids, can increase the risk of cataracts.
  6. Smoking and Alcohol: Lifestyle factors like smoking and excessive alcohol consumption have been linked to cataract formation.
  7. Ultraviolet (UV) Exposure: Prolonged exposure to UV radiation from the sun may increase the risk of cataracts.

Diagnosis and Evaluation

If you suspect you have cataracts or have been experiencing visual changes, it is crucial to seek a professional evaluation by an eye doctor. In New Zealand, optometrists and ophthalmologists are well-equipped to diagnose and manage cataracts.

Eye Examination

During your eye examination, the eye care specialist will perform a series of tests to assess the extent of your cataracts and their impact on your vision. These tests may include:

  1. Visual Acuity Test: This test measures how well you can see at various distances using an eye chart.
  2. Slit-Lamp Examination: A slit-lamp is a microscope that allows the doctor to examine the eye’s structures, including the lens.
  3. Dilated Eye Exam: The doctor will use special eye drops to dilate your pupils, allowing for a more thorough examination of the lens and retina.
  4. Retinal Exam: This part of the examination evaluates the health of the retina and optic nerve.
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Once the diagnosis is confirmed, your eye care specialist will discuss treatment options with you, with cataract surgery being one of the most effective and common treatments for advanced cataracts.

Cataract Surgery in New Zealand

When Is Cataract Surgery Recommended?

Cataract surgery is typically recommended when cataracts significantly affect your vision and daily activities, making it challenging to perform tasks such as reading, driving, or recognizing faces. It is essential to note that cataract surgery is not an emergency procedure, and you have the flexibility to schedule it when it’s most convenient for you.

Preparing for Cataract Surgery

Before undergoing cataract surgery in New Zealand, there are several essential steps to follow:

  1. Consultation: Schedule a consultation with an ophthalmologist who specializes in cataract surgery. During this consultation, you will discuss your medical history, lifestyle, and any concerns you may have.
  2. Eye Measurements: The surgeon will take precise measurements of your eye to determine the appropriate intraocular lens (IOL) power that will be implanted during surgery. This will help customize your vision correction.
  3. Medications: Your surgeon may prescribe eye drops or medications to prepare your eye for surgery and reduce the risk of infection.
  4. Fasting: You may be instructed to fast for a certain period before the surgery. Follow your surgeon’s instructions carefully.
  5. Arrangements: Arrange for someone to drive you to and from the surgery center, as you may not be able to drive immediately after the procedure.
  6. Follow-Up Appointments: Schedule post-operative appointments with your surgeon to monitor your progress and ensure proper healing.

Cataract Surgery Techniques

In New Zealand, several advanced cataract surgery techniques are employed to ensure the best possible outcomes for patients. The two primary methods are:


Phacoemulsification is the most common cataract surgery technique in New Zealand and around the world. It involves the use of a small incision through which an ultrasonic device is inserted to break up and remove the cloudy lens. Once the cataract is removed, an artificial intraocular lens (IOL) is implanted to replace the natural lens.

Phacoemulsification offers several advantages, including:

  • Smaller incisions, which promote faster healing and reduce the risk of infection.
  • Minimal discomfort during and after the procedure.
  • Rapid visual recovery, with most patients experiencing improved vision within a few days.

Manual Extracapsular Cataract Extraction (ECCE)

Manual ECCE is an older cataract surgery technique that is less commonly performed today but may still be used in specific cases. In this procedure, a larger incision is made, and the cloudy lens is removed in one piece. The IOL is then implanted in the eye.

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While ECCE has been largely replaced by phacoemulsification, it may still be recommended in situations where phacoemulsification is not suitable due to factors such as dense cataracts or certain eye conditions.

Intraocular Lens (IOL) Options

One of the critical decisions you’ll make before cataract surgery is choosing the type of intraocular lens (IOL) to implant in your eye. IOLs come in various types, each offering unique advantages:

  1. Monofocal IOLs: Monofocal IOLs provide clear vision at one specific distance, either near or far. Patients who choose monofocal IOLs often require reading glasses or bifocals for close-up tasks.
  2. Multifocal IOLs: Multifocal IOLs offer clear vision at multiple distances, reducing the need for glasses after surgery. They are an excellent choice for individuals who desire greater independence from glasses.
  3. Toric IOLs: Toric IOLs are specially designed for patients with astigmatism. They can correct both cataracts and astigmatism in a single procedure.
  4. Accommodating IOLs: Accommodating IOLs are designed to mimic the eye’s natural focusing ability, allowing for a broader range of vision without glasses.
  5. Extended Depth of Focus (EDOF) IOLs: EDOF IOLs provide a continuous range of clear vision from near to far and are known for their ability to reduce or eliminate the need for glasses.

Your surgeon will discuss these options with you and help you choose the IOL that best suits your lifestyle and visual goals.

The Cataract Surgery Procedure

Cataract surgery in New Zealand is typically performed as an outpatient procedure, meaning you can go home on the same day. Here’s an overview of what to expect during the surgery:

  1. Anesthesia: You will receive local anesthesia, which numbs the eye and keeps you comfortable during the procedure. You may also be given a mild sedative to help you relax.
  2. Incision: A small incision is made on the side of the cornea, the clear front surface of the eye.
  3. Cataract Removal: Depending on the chosen surgical technique (phacoemulsification or ECCE), the cloudy lens is either broken up and removed or extracted in one piece.
  4. IOL Implantation: The artificial intraocular lens (IOL) is carefully inserted into the eye to replace the natural lens.
  5. Wound Closure: In most cases, the incision is self-sealing and does not require sutures.
  6. Recovery: You will spend a short time in the recovery area, where the surgical team will monitor your condition. Once you are alert and stable, you can go home with a responsible adult.

After Cataract Surgery

After your cataract surgery in New Zealand, it is essential to follow your surgeon’s post-operative instructions carefully. Here are some general guidelines:

  1. Eye Drops: You will be prescribed a regimen of eye drops to help with healing and prevent infection. It’s crucial to use these drops as directed.
  2. Protective Eyewear: You may need to wear a protective shield or eyeglasses to prevent accidental rubbing or injury to the eye.
  3. Activity Restrictions: Avoid strenuous activities, swimming, and heavy lifting for a specified period to allow your eye to heal properly.
  4. Follow-Up Appointments: Attend all scheduled follow-up appointments with your surgeon to monitor your progress and address any concerns.
  5. Vision Improvement: You should notice an improvement in your vision within a few days to weeks after surgery. Your vision will continue to improve as your eye heals.
  6. New Glasses: Depending on the type of IOL chosen, you may still need glasses for specific tasks. Your surgeon will advise you on whether you need prescription eyewear.
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Risks and Complications

While cataract surgery is generally safe and highly successful, like any surgical procedure, it carries some risks and potential complications. These may include:

  • Infection
  • Swelling or inflammation
  • Retinal detachment
  • Glaucoma
  • Secondary cataracts
  • Dislocation of the IOL

It’s important to discuss these risks with your surgeon and make an informed decision about the surgery based on your individual circumstances.

Cataract Surgery Cost in New Zealand

The cost of cataract surgery in New Zealand can vary depending on several factors, including the type of IOL chosen, the surgical technique used, and the location of the surgical center. In many cases, cataract surgery is publicly funded through the New Zealand public health system, which means it is provided at no cost to the patient. However, there may be wait times for publicly funded surgeries.

For those who prefer to have cataract surgery done privately or wish to have a wider choice of IOLs, private clinics and hospitals in New Zealand offer cataract surgery at various price points. The cost can range from NZD 2,000 to NZD 5,000 per eye, depending on the facility and the level of care provided.

It’s essential to consult with your eye care specialist to understand your options and whether you qualify for publicly funded surgery.

Choosing the Right Surgeon

Selecting a skilled and experienced surgeon is a critical step in ensuring a successful cataract surgery. In New Zealand, you have access to numerous highly qualified ophthalmologists who specialize in cataract surgery. Here are some factors to consider when choosing a surgeon:

  1. Credentials: Ensure that the surgeon is board-certified and has the necessary training and expertise in cataract surgery.
  2. Experience: Look for a surgeon who has performed a significant number of cataract surgeries, as experience is often associated with better outcomes.
  3. Patient Reviews: Read reviews and testimonials from previous patients to gauge the surgeon’s reputation and patient satisfaction.
  4. Consultation: Schedule a consultation with the surgeon to discuss your concerns, treatment options, and any questions you may have.
  5. Communication: Choose a surgeon with whom you feel comfortable and who takes the time to explain the procedure and address your concerns.


Cataract surgery in New Zealand is a well-established and highly effective procedure that has transformed the lives of countless individuals with cataracts. If you are experiencing vision problems due to cataracts, it’s essential to seek professional evaluation and consider cataract surgery as a safe and reliable solution.

With advanced surgical techniques, a wide range of intraocular lens options, and a network of skilled eye care specialists, New Zealand offers a high standard of cataract care. Whether you choose publicly funded or private cataract surgery, the goal remains the same: to restore your clear vision and improve your overall quality of life.

Remember that each person’s experience with cataract surgery is unique, and the information provided in this guide is intended for general educational purposes. Consult with your eye care specialist to determine the best course of action for your specific needs and circumstances.