What to Expect from Cataract Surgery

What is a Cataract?

A cataract is a clouding of the eye's natural lens, located behind the iris and pupil, which focuses light onto the retina. It develops as lens proteins break down and clump together with age, causing the lens to become progressively opaque. Symptoms include blurred or foggy vision, increased glare and halos around lights, faded colours, and frequent glasses prescription changes. Cataracts are entirely treatable by replacing the cloudy lens with a clear artificial one.

A cataract is a clouding of the eye's natural lens — the clear structure that sits behind the iris and pupil and focuses light onto the retina. As we age, proteins within the lens begin to break down and clump together, causing the lens to become progressively opaque. The result is blurry, foggy, or yellowed vision that gradually worsens over time.

Cataracts are extremely common. By the age of 75, most Australians will have some degree of cataract formation. Symptoms can include difficulty driving at night, increased glare and halos around lights, faded colours, and frequent changes in glasses prescription. The good news is that cataracts are entirely treatable — surgery restores vision by replacing the cloudy lens with a clear artificial one.

When is Surgery Recommended?

Cataract surgery is recommended when the cataract is affecting your quality of life — typically when it begins to interfere with driving, reading, work, or other daily activities that matter to you. Modern phacoemulsification techniques allow safe removal at any stage of cataract development, so there is no need to wait until the cataract is advanced. The timing decision is made with your ophthalmologist based on the cataract's impact on your function.

Surgery is recommended when your cataract is affecting your quality of life — typically when it begins to interfere with driving, reading, work, or everyday activities. Cataracts do not need to be 'ripe' before surgery is possible. Modern techniques allow safe removal at any stage. Your ophthalmologist will discuss the timing with you based on the degree of your cataract and the impact on your vision.

The Pre-operative Assessment

The pre-operative assessment is the foundation of a good cataract surgery outcome. It includes careful biometry — optical measurement of the eye's length, corneal curvature, and other parameters to calculate the precise power of the lens implant needed. Overall eye health is assessed to identify any other conditions that may affect the outcome. This is also when you discuss lens implant options and agree on the target vision for your surgery.

Before surgery, you will attend a detailed pre-operative assessment. Your ophthalmologist will measure your eye carefully — including its length, corneal curvature, and other parameters — to calculate the precise power of the lens implant needed to optimise your vision. This is called biometry. Your overall eye health will also be assessed to identify any other conditions that may affect your outcome.

This is also the appointment where you will discuss your lens implant options and agree on the target vision for your surgery. Our team will answer all of your questions and explain what to expect on the day.

What Happens on the Day?

Cataract surgery is performed as day surgery — you arrive, have the procedure, and go home the same day. The operation takes approximately 10 to 20 minutes per eye under topical anaesthetic eye drops, often combined with light intravenous sedation. Using phacoemulsification, the surgeon makes a small incision, removes the cloudy lens by ultrasound fragmentation and suction, then inserts a foldable artificial lens through the same incision. No stitches are required.

Cataract surgery is performed as day surgery — you arrive, have the procedure, and go home on the same day. The operation itself takes approximately 10–20 minutes per eye. Anaesthesia is administered as eye drops (topical anaesthesia), often combined with light intravenous sedation (twilight anaesthesia) to keep you comfortable and relaxed.

Using a technique called phacoemulsification, your surgeon makes a tiny incision in the eye. Ultrasound energy gently breaks up the cloudy lens into small fragments, which are then removed by suction. A foldable artificial intraocular lens (IOL) is then inserted through the same small incision and unfolds into position. No stitches are required. You will be awake throughout but will not be able to see what is happening.

Lens Implant Options

The lens implant (IOL) chosen during cataract surgery directly determines your vision after the procedure. The main categories are: standard monofocal IOLs (sharp vision at one distance, usually with reading glasses still needed); toric IOLs (correcting pre-existing astigmatism); multifocal IOLs (vision at multiple distances, with potential for halos at night); and EDOF IOLs (extended range from distance to intermediate with fewer optical side effects than multifocals). Your surgeon will recommend the most appropriate option at your pre-operative consultation.

One of the most important decisions before cataract surgery is choosing the right lens implant. There are several types:

Monofocal IOL: The standard lens, providing excellent clarity at one distance — usually distance. Reading glasses are typically still required for near tasks. This is the most commonly used lens.

Toric IOL: A monofocal lens with correction for astigmatism. Recommended for patients with significant corneal astigmatism to reduce dependence on distance glasses.

Multifocal IOL: Provides vision at multiple distances (near, intermediate, and far) by splitting incoming light into focal points. Significantly reduces the need for glasses, but some patients notice halos around lights, particularly at night. Best suited to motivated patients with healthy eyes.

Extended Depth of Focus (EDOF) IOL: Provides a continuous extended range of vision from distance to intermediate, with fewer halos than traditional multifocal lenses. A popular choice for patients who spend significant time on screens.

Your surgeon will discuss which lens is most appropriate for your prescription, eye health, and lifestyle at your pre-operative consultation.

Recovery and Aftercare

Most patients notice significant vision improvement within 24 to 48 hours of cataract surgery. Antibiotic and anti-inflammatory eye drops are used for approximately four to six weeks. Avoid rubbing the eye, swimming, and dusty environments for the first few weeks. Driving is not permitted on the day of surgery and most patients resume within a few days. Final vision stabilises at approximately four to six weeks, at which point updated glasses can be prescribed if needed.

Most patients notice a significant improvement in vision within 24–48 hours of surgery. Your vision will continue to settle and sharpen over the following weeks. You will use antibiotic and anti-inflammatory eye drops for approximately 4–6 weeks after surgery.

You should avoid rubbing your eye, swimming, and dusty environments for the first few weeks. Driving is not permitted on the day of surgery. Most patients can resume normal activities — including driving — within a few days, once vision has improved and your surgeon has cleared you at the post-operative check.

Final vision stabilises at approximately 4–6 weeks, at which point updated glasses can be prescribed if required.

Medicare and Private Health Insurance

Cataract surgery is covered by Medicare as a medically necessary procedure, with Medicare rebates applying to the surgeon's, anaesthetist's, and assistant surgeon's fees. Patients with private hospital cover can claim against their insurer for the hospital facility fee. Our team can provide a detailed fee estimate including any out-of-pocket costs before you proceed. Contact our rooms to discuss your individual situation.

Cataract surgery is covered by Medicare as it is a medically necessary procedure. Most patients with private hospital cover will have little or no out-of-pocket cost for the procedure. Patients without private health insurance can be treated in the public hospital system, though waiting times apply.

Our team can provide you with a detailed fee estimate, including any potential out-of-pocket costs, before you proceed. Please contact our rooms to discuss your specific situation.