How to Choose Between Monofocal, EDOF and Multifocal IOLs in 2026

The intraocular lens (IOL) implanted during cataract surgery will determine your visual experience for the rest of your life. It is the most important decision in cataract surgery — and it is a decision I approach carefully with every patient.

In 2026, the three main categories are monofocal, EDOF (Extended Depth of Focus), and multifocal IOLs. Each has a distinct optical approach, a different visual outcome profile, and a different set of ideal patients. Here is what I tell my Melbourne patients when we work through this decision together.

What All IOLs Have in Common

All IOLs:

• Replace the cloudy natural lens removed during cataract surgery
• Are calculated precisely for your eye's measurements using optical biometry
• Are folded and implanted through a tiny incision (2.4mm), unfolding inside the eye
• Are permanent — designed to last a lifetime

The lens power is calculated to target your desired visual outcome. The type of lens determines the range of that outcome.

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Monofocal IOLs — Clarity at One Distance

A monofocal lens has a single focal point. Most commonly it is set for distance, giving excellent clarity for driving, television, and outdoor activities. Reading glasses are needed for near tasks.

A variation is monovision — targeting one eye for distance and the other for near. This works well for some patients, particularly those who used monovision contact lenses previously, but it reduces binocular depth perception and is not universally tolerated.

Real-world visual experience:

• Distance: Excellent (no glasses)
• Intermediate: Moderate to good
• Near (reading): Glasses required

Optical quality:

• Maximum contrast sensitivity
• Minimal or no halos/glare
• Most predictable outcome

Cost: Covered by Medicare and private health insurance. No additional lens cost.

Best for: Patients comfortable with reading glasses who want the best possible distance clarity, lowest rate of optical side effects, and the most proven option.

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EDOF IOLs — Seamless Distance to Intermediate

EDOF lenses work by elongating the focal zone rather than creating discrete focal points. The result is a continuous, seamless range of clear vision from distance through to intermediate (arm's length — computer screen, car dashboard, cooking, reading a supermarket shelf).

Most EDOF patients can drive, use a computer, and manage the vast majority of daily tasks without glasses. Fine print — menus in dim light, small text on packaging — may still require reading glasses in some situations.

Real-world visual experience:

• Distance: Excellent
• Intermediate: Excellent
• Near (fine print): Variable — sometimes reading glasses needed

Optical quality:

• Very good contrast sensitivity
• Significantly lower halo/glare rates than multifocal
• Natural, fluid visual experience

Cost: Lens cost approximately $1,500–$2,500 per eye (not covered by Medicare or private health insurance).

Available platforms in Australia (2026): Alcon Vivity, Tecnis Symfony (Johnson & Johnson), HOYA Vivinex iSert XY1C.

Best for: Patients wanting substantial glasses independence — especially for intermediate tasks — who are concerned about night vision quality or halos, and who accept occasional reading glasses for fine print.

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Multifocal IOLs — Maximum Glasses Independence

Multifocal IOLs use diffractive or refractive optics to split incoming light to multiple focal zones — near, intermediate, and distance — simultaneously. Over weeks to months, the brain learns to select the appropriate focal zone for each task, a process called neuroadaptation.

For well-selected patients who adapt, multifocal IOLs can provide functional vision at all distances without glasses. Satisfaction among well-counselled patients is high.

Real-world visual experience:

• Distance: Excellent
• Intermediate: Good to Excellent
• Near (reading): Good to Excellent

Optical quality:

• Higher rate of halos and glare around lights at night, particularly in the first 6–12 months
• Slightly reduced contrast sensitivity in some lighting conditions
• Neuroadaptation required — most improve significantly over time

Cost: Lens cost approximately $2,000–$3,000 per eye (not covered by Medicare or private health insurance).

Best for: Patients highly motivated for glasses independence at all distances, with healthy eyes (good retinas and corneas, no significant dry eye), realistic expectations about the adaptation period, and who understand the halos/glare trade-off.

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Toric Options — Correcting Astigmatism

All three lens categories are available in toric versions that incorporate built-in astigmatism correction. For patients with significant corneal astigmatism, a toric IOL improves uncorrected vision quality substantially compared to a non-toric lens.

A toric monofocal IOL is the most common way to address astigmatism in cataract surgery and is partially covered by health insurance (toric uplift applies). Toric EDOF and toric multifocal lenses are also available for patients who want both astigmatism correction and extended range.

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The Comparison at a Glance

| | Monofocal | EDOF | Multifocal | |---|---|---|---| | Distance vision | Excellent | Excellent | Excellent | | Intermediate | Good | Excellent | Good–Excellent | | Near/reading | Needs glasses | Sometimes glasses | Rarely needs glasses | | Night halos/glare | Minimal | Low | Moderate (improves) | | Contrast | Best | Very good | Good | | Neuroadaptation needed | No | Minimal | Yes | | Medicare/insurance covered | Yes | Lens cost only | Lens cost only |

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My Selection Process

When I recommend a lens, I consider:

1. Your visual priorities — what matters most: reading without glasses, night driving quality, computer work, or complete glasses freedom?
2. Eye health — macular status, corneal shape, dry eye disease, pupil size
3. Occupation and lifestyle — night driving, precision work, sport
4. Expectations — have you been given an honest picture of each lens's limitations?

I will give you a direct recommendation and explain my reasoning. If a premium lens is not the right choice for your eyes, I will tell you why. If it is, I will tell you which platform suits you best — and what to expect during adaptation.

For more information on specific lens types, see EDOF Lenses and Multifocal IOLs on this site, or visit drmacintyre.com for more on my surgical approach.

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Dr Ross MacIntyre consults at Northern Eye Consultants in Bundoora. Book an appointment →