Understanding cataracts and choosing your lens

Cataracts can gradually change how you see the world, making reading harder, headlights more distracting, and colors less vibrant.

Cataract surgery replaces your cloudy natural lens with a clear artificial lens. It also offers an opportunity to discuss how you want to see after surgery, from driving and computer work to reading and outdoor activities.

As a cornea and cataract surgeon, I help you understand your options and choose an approach that fits your eye health, lifestyle, and visual goals.

What Causes Cataracts?

A cataract develops when the natural lens inside your eye becomes cloudy. Most develop with age, as proteins within the lens change and affect how light passes through it.

Other factors that can increase your risk include:

Early on, updated glasses and better lighting may help. Surgery is the only way to remove a cataract, but not every cataract needs surgery right away.

When Should You Consider Cataract Surgery?

The decision depends on how cataracts affect your daily life and what your examination shows.

You may notice:

These symptoms can also have other causes. An eye examination helps determine how much of your vision change comes from cataracts.

When cataracts interfere with activities that matter to you, we can discuss the benefits, risks, and timing of surgery.

Lens Options: Choosing the Right Fit for Your Eyes

During cataract surgery, the cloudy lens is replaced with an artificial intraocular lens, or IOL.

Each lens offers different benefits and tradeoffs. Your eye health, previous eye surgery, and preferences all matter. No lens guarantees complete freedom from glasses.

Monofocal Lenses

Monofocal lenses focus primarily at one distance, often chosen for distance vision. When both eyes are set for distance, reading glasses are usually needed.

For selected patients, we may discuss monovision, meaning setting one eye for distance and the other for closer tasks to reduce dependence on glasses.

Toric Lenses

Toric lenses correct regular corneal astigmatism, helping reduce blur caused by an uneven curvature of the cornea.

Toric correction is available in several lens designs. Your need for glasses also depends on the lens’s focusing range and the chosen vision target.

Multifocal and Trifocal Lenses

These lenses provide more than one focus to support vision at different distances and reduce dependence on glasses.

Tradeoffs can include halos, glare, and reduced contrast, particularly in dim lighting. They are not suitable for every eye, and glasses may still be helpful for some tasks.

Extended Depth of Focus (EDOF) Lenses

EDOF lenses extend the range of focus, typically supporting distance and intermediate activities such as computer work.

Reading glasses may still be needed, especially for small print. Halos and glare can occur, and performance varies by lens design.

Light Adjustable Lens (LAL)

The Light Adjustable Lens allows its prescription to be fine-tuned after surgery using office-based ultraviolet light treatments.

It requires additional visits, final “lock-in” treatments, and special UV-protective glasses worn according to your surgeon’s instructions until you are cleared to stop.

Suitability depends on your eye health, medications, and ability to complete the treatment schedule. Glasses may still be needed for some activities.

A Plan Built Around Your Vision

Choosing a lens starts with understanding your eyes and how you use them.

We will discuss your priorities such as night driving, reading, screen time, travel, or outdoor activities and how comfortable you are with wearing glasses for certain tasks.

Your cornea, ocular surface, retina, and the structures supporting your lens also influence the recommendation.

Cataract surgery improves vision for many people, but recovery and results vary. We will review your individual risks, expected benefits, and follow-up care before you decide.

My goal is to help you make an informed choice that supports the life you want to lead.

Learn More: Lens & Zonules

Tiny fibers called zonules help hold your natural lens in place. When these supporting fibers are weak, cataract surgery may require additional planning and support.


Explore the Lens & Zonules page to learn why lens stability matters.