Comparison of multifocal and monofocal intraocular lenses

Multifocal vs. Monofocal Lenses: Which IOL is Right for You?

Mira Elwood in Health & Wellness October 2026 • 4 min read.

"A comprehensive comparison of visual performance, spectacle dependency, and quality of life for patients choosing intraocular lenses."

Cataract surgery aims to restore clear vision with minimal complications. A key part of this process involves selecting the right intraocular lens (IOL) to replace the eye's natural lens. While monofocal IOLs have been the standard, multifocal IOLs are increasingly popular due to their ability to provide vision at multiple distances.

Multifocal IOLs work by creating different focal points within the eye, allowing for both near and distance vision. This reduces the need for glasses or contact lenses. However, they can also cause side effects like decreased contrast sensitivity, glare, and halos, impacting overall visual satisfaction.

This article compares the visual performance of multifocal IOLs with monofocal IOLs made of the same material. We'll explore the benefits and drawbacks of each, providing insights to help you make an informed decision about which type of IOL is best suited for your individual needs.

Monofocal vs. Multifocal IOLs: A Detailed Comparison

Comparison of multifocal and monofocal intraocular lenses

A recent study compared patients who received Tecnis® monofocal IOLs (ZA9003 or ZCB00) with those who received Tecnis® multifocal IOLs (ZMA00 or ZMB00). The study assessed various factors, including visual acuity, contrast sensitivity, spectacle dependency, and subjective visual function.

Here's a breakdown of the key findings:

Near Visual Acuity: Multifocal IOLs provided significantly better uncorrected near visual acuity (UNVA).
Intermediate and Near Visual Acuity: Monofocal IOLs resulted in better corrected intermediate (CIVA) and near visual acuity (CNVA).
Contrast Sensitivity: Monofocal IOLs demonstrated significantly better contrast sensitivity, both with and without glare.
Spectacle Dependency: Multifocal IOLs significantly reduced the need for glasses.
Subjective Visual Function: Both groups reported similar overall visual function, except that those with monofocal IOLs experienced fewer issues with nighttime driving.

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Latest Research

Recent Evidence on Visual Quality

A 2019 meta-analysis cited in a comparative review found that multifocal IOLs carry a greater risk of adverse visual phenomena than standard monofocal IOLs. The review also cites Leyla Asena's report of less optical interference and visual impairment after bilateral implantation of EDOF IOLs than with multifocal alternatives. These findings illustrate why multifocal and newer extended-depth-of-focus technologies remain active subjects of ophthalmic research.

Counterpoints

Trade-Offs in Multifocal Design

Multifocal IOLs generate different focal points to address the near and intermediate-distance limitations associated with classic monofocal IOLs. The cited investigation used a retrospective design to compare multifocal IOLs with same-material monofocal IOLs. That comparison highlights that multifocal designs target broader visual coverage, but their outcomes must be evaluated against the performance of monofocal lenses under comparable material conditions.

Comparison

Spectacle Independence and Personal Fit

In the cited comparison, the rate of spectacle independence in the monofocal group was approximately 12%. A separate 2026 clinical overview emphasizes that choosing among monofocal, multifocal, and toric lenses should reflect visual goals, lifestyle, and ocular health. Its central conclusion is that every IOL type involves trade-offs and no single lens resolves every patient's needs.

These results highlight the trade-offs between multifocal and monofocal IOLs. While multifocal IOLs reduce reliance on glasses, they may compromise contrast sensitivity and nighttime vision in some individuals. Monofocal IOLs, on the other hand, offer excellent clarity but typically require glasses for near tasks.

Making the Right Choice for Your Eyes

The decision between multifocal and monofocal IOLs depends on individual lifestyle, visual needs, and tolerance for potential side effects. If you prioritize spectacle independence and frequently engage in near tasks, multifocal IOLs may be a good option. However, if you value optimal clarity and often drive at night, monofocal IOLs might be more suitable.

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Expert View

Balancing Vision and Visual Phenomena

A systematic-review summary reports that multifocal IOLs generally provide better uncorrected near vision and greater spectacle independence than standard IOLs. The same summary reports more unwanted visual phenomena, including glare and halos, compared with monofocal IOLs. This trade-off supports individualized counseling rather than treating either lens category as universally superior.

Future Outlook

Expanding IOL Categories

A market report states that the multifocal IOL market was valued at USD 1.32 billion in 2025, although the supplied projection is incomplete. Market Scope analyzes 11 IOL categories, including commodity monofocal, enhanced monofocal, toric, bifocal, trifocal, EDOF, accommodating, postoperatively adjustable, and phakic lenses. These classifications show that future development is being tracked across a broad range of lens designs rather than multifocal technology alone.

Broader Context

Measuring Vision Beyond Distance

A comparative study evaluated near, intermediate, and distance vision in patients with binocularly implanted monofocal or apodized diffractive multifocal IOLs. It also assessed quality of vision using appropriate subjective questionnaires. The study's design reflects the broader challenge of comparing IOLs across multiple visual distances and patient-reported outcomes rather than relying on distance acuity alone.

It's essential to discuss your options with your ophthalmologist. They can assess your eyes, understand your lifestyle, and recommend the best IOL for your specific needs. Newer multifocal IOL designs and technologies are continuously evolving, potentially minimizing some of the drawbacks associated with earlier models.

Ultimately, the goal is to achieve the best possible vision and quality of life after cataract surgery. Careful consideration of the pros and cons of each IOL type, along with personalized guidance from your eye doctor, can help you make the right choice for your unique situation.

A retrospective comparison of Tecnis multifocal and monofocal lenses

Study design	Observational study^[1]
Population	Patients implanted bilaterally with Tecnis multifocal or monofocal IOLs^[1]
Main outcome	Visual performance comparing multifocal and monofocal IOLs^[1]
Effect size	Uncorrected near visual acuity was significantly better in the multifocal group; corrected intermediate and near visual acuity and contrast sensitivity were better in the monofocal group.^[1]
p-value	P = 0.7442; p = 0.9797^[1]
Funding	No support or funding reported^[1]
Times cited	71^[1]

How related comparisons place these results

A later comparison of a low-addition diffractive multifocal lens with a monofocal lens reported better uncorrected and distance-corrected near and intermediate acuity for the multifocal group, showing that results can differ with lens design and test conditions.^[2]

A Cochrane review found distance acuity was not different between multifocal and monofocal lenses, while near vision may favor multifocal lenses; it also found more glare and halos with multifocal lenses.^[3]

What a follow-up comparison would need to clarify

Would a prospective comparison with stronger masking reproduce the observed visual and questionnaire patterns?^{[1] [3]}
Would findings differ when outcomes are separated by lens design and measured distance, rather than treating multifocal lenses as a single category?^{[2] [4]}
Would the nighttime-driving pattern hold in a broader group than the daily drivers whose scores were evaluated here?^[5]

Sources

Comparison of Visual Performance of Multifocal Intraocular Lenses with Same Material Monofocal Intraocular Lenses (Public Library of Science (PLoS), 2013)
Visual outcomes in eyes with a distance-dominant diffractive multifocal intraocular lens with low near addition power (British Journal of Ophthalmology, 2015)
Multifocal versus monofocal intraocular lenses for people having cataract surgery | Cochrane (www.cochrane.org)
Multifokale Intraokularlinsen - eine Bestandsaufnahme (Klinische Monatsblätter für Augenheilkunde, 1993)
Comparison of Visual Performance of Multifocal Intraocular Lenses with Same Material Monofocal Intraocular Lenses (Europe PMC, 2013)

About this Article -

Written with AI assistance from published research, and reviewed by the Mystum team. See our About page for more information.

This article is based on research published under:

DOI-LINK: 10.1371/journal.pone.0068236, Alternate LINK

Title: Comparison Of Visual Performance Of Multifocal Intraocular Lenses With Same Material Monofocal Intraocular Lenses

Subject: Multidisciplinary

Journal: PLoS ONE

Publisher: Public Library of Science (PLoS)

Authors: Tomofusa Yamauchi, Hitoshi Tabuchi, Kosuke Takase, Hideharu Ohsugi, Zaigen Ohara, Yoshiaki Kiuchi

Published: 2013-06-28

Everything You Need To Know

What are the main differences between monofocal and multifocal IOLs?

Choosing the right intraocular lens (IOL) after cataract surgery is a critical decision. The primary options are monofocal IOLs and multifocal IOLs. Monofocal IOLs provide clear vision at a single distance, usually distance. Multifocal IOLs, on the other hand, are designed to provide vision at multiple distances, reducing the need for glasses. The selection hinges on your lifestyle and visual requirements, with monofocal IOLs offering excellent clarity and multifocal IOLs providing spectacle independence. A recent study compared patients who received Tecnis® monofocal IOLs (ZA9003 or ZCB00) with those who received Tecnis® multifocal IOLs (ZMA00 or ZMB00).

How do monofocal IOLs work compared to multifocal IOLs?

Monofocal IOLs primarily focus on providing clear vision at a single distance, most often distance vision, which often means the need for glasses for near tasks. These lenses are the traditional standard in cataract surgery. In comparison, multifocal IOLs are designed to provide vision at multiple distances, reducing the need for glasses or contact lenses. A recent study shows that Monofocal IOLs resulted in better corrected intermediate (CIVA) and near visual acuity (CNVA).

What are the key trade-offs to consider when choosing between monofocal and multifocal IOLs?

The main trade-offs involve visual performance and potential side effects. Multifocal IOLs, while reducing spectacle dependency, may decrease contrast sensitivity and lead to issues like glare and halos. Monofocal IOLs tend to offer better contrast sensitivity and fewer nighttime vision problems. The study indicates that patients with monofocal IOLs experienced fewer issues with nighttime driving. The choice depends on individual needs, balancing the desire for spectacle independence with the tolerance for potential visual disturbances.

How does spectacle dependency relate to the choice of IOL?

Spectacle dependency refers to the reliance on glasses or contact lenses for clear vision. Multifocal IOLs are designed to reduce this dependency by providing vision at multiple distances. A study found that multifocal IOLs significantly reduced the need for glasses, offering greater convenience for near tasks. However, this reduction in spectacle dependency comes with potential trade-offs in other aspects of visual performance, such as contrast sensitivity and nighttime vision, which could impact overall visual satisfaction.

What is contrast sensitivity, and why is it important in this context?

Contrast sensitivity refers to the ability to distinguish between subtle differences in light and dark. Monofocal IOLs have been found to provide significantly better contrast sensitivity compared to multifocal IOLs. This means individuals with monofocal IOLs may perceive objects more clearly in various lighting conditions. Decreased contrast sensitivity with multifocal IOLs can lead to reduced visual satisfaction, especially in challenging visual environments.