多焦點人工晶體 - 香港希瑪眼科中心｜眼科診所

During the procedure, the surgeon removes the clouded lens and replaces it with an intraocular lens (IOL). With continuous progress in medical science, IOLs now come with various focal options.These IOLs can be categorized into three main types:。

Currently available IOL Comparison

Feature

Monofocal IOL

Extended Depth of
Focus (EDOF) IOL

Multifocal IOL

Purpose

Cataract

Refractive lens exchange / Cataract

Focal Range

Primarily distance vision

Suitable for distance and intermediate vision, or intermediate and near vision

Suitable for distant, intermediate and near vision

Contrast in Low Light

Best contrast

Good contrast sensitivity with minimal glare

Fair contrast, but glare or halos may occur

Advantages

Provides the best visual quality at the chosen focal range

Very good visual quality within the focal range
Continuous range of vision
Good contrast sensitivity
Minimal/ no halos, glare and starbursts

Provides good distant, intermediate and near vision

Post-operative Dependence on Glasses

Glasses are usually required for vision outside the focal range

Glasses may be required for vision outside of focal range

Glasses usually not required

Suitable for

Accepts glasses when required
Prioritise higher visual quality
Budget considerations

Wish to reduce dependence on glasses
Drives at night

Prefer not to wear glasses
Accepts lower contrast sensitivity, halos, glare and starbursts
Does not drive at night
Does not require high precision vision, especially in low light conditions

*Blended Vision

Blended vision works by implanting two IOLs with different targeted refractions, allowing both eyes to work together for different visual distances.

One eye is typically used for distant objects (usually with a targeted refraction of zero diopter), and the other for intermediate and/or near objects (usually with a targeted refraction of -1.0D to -2.50D).

After a period of adaptation, most daily activities can be performed without glasses when using both eyes.

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Which intraocular lens is suitable for you?

Multifocal IOLs: Delivering Clear Vision Across All Distances!

Multifocal IOLs represent a revolutionary treatment for cataracts, offering two or three focal zones that cover distant, intermediate, and near distances.

Advantages of Multifocal IOLs

Wider Range of Focus:

Unlike monofocal lenses, which only offer clear vision at a single distance, multifocal lenses provide multiple focal zones, enabling patients to enjoy clear vision across a variety of distances.

Enhanced Quality of Life:

Multifocal lenses eliminate the inconvenience of constantly switching between glasses or contact lenses, offering greater comfort and ease during daily activities.

Personalized options:

Patients can choose between bifocal or trifocal solutions based on their visual needs and lifestyle to achieve optimal vision correction.

Multifocal IOLs have been widely adopted in clinical practice and are proven to be a safe and reliable cataract treatment solution. Most patients experience rapid vision recovery after surgery.

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Learn more about multifocal intraocular lenses

Frequently Asked Questions (Q&A)

Q: Will glasses or contact lenses still be needed after multifocal lenses?

Multifocal lenses are designed to provide a comprehensive visual experience by offering clear vision at various focal points, thus reducing dependence on glasses or contact lenses. The majority of patients who receive multifocal lenses no longer require glasses or contacts. However, a small percentage of individuals may still need glasses for specific tasks.

Q: Can multifocal lenses be tailored to lifestyle and vision needs?

Since each person's visual requirements are unique, multifocal lenses come in various options to accommodate individual demands and habits. This ensures an optimal vision correction solution tailored to each patient's specific needs.

Q: Are multifocal IOLs suitable for all cataract patients?

While multifocal IOLs are suitable for most cataract patients, particularly those with presbyopia, their appropriateness ultimately depends on individual circumstances. Therefore, it is strongly recommended that you discuss your unique condition thoroughly with an ophthalmologist to ensure the chosen lens is the most suitable for you.

Q: Should potential visual disturbances, such as halos or glare, be considered when choosing multifocal lenses?

Although multifocal lenses provide clear vision across various distances, they may occasionally cause visual effects such as halos or glare, particularly in low-light or nighttime settings. For patients who require optimal night vision, careful consideration is advised. It is essential to fully understand all potential outcomes and consult thoroughly with an ophthalmologist before deciding on the most suitable lens.