How Do EDOF Lenses Affect Night Vision?

Yazar: Op. Dr. Gökay Günay

Many people researching cataract or lens surgery are curious about EDOF lenses as well as multifocal lenses.

One of the most frequently asked questions is:

“What is night vision like with EDOF lenses?”

Many patients aim not only to reduce dependence on glasses, but also to maintain high-quality, comfortable vision at night.

What Is an EDOF Lens?

EDOF (extended depth of focus) lenses may be described as lenses with an extended depth of focus.

These lenses aim to provide a broad range of vision at distance and intermediate ranges while also focusing on preserving visual quality.

For this reason, they have become an important option for many patients in recent years.

Why Is Night Vision Frequently Asked About with EDOF Lenses?

When choosing a lens, many people want answers to questions such as:

  • Can I drive at night?
  • Will I experience light scatter?
  • Will headlights bother me?
  • What will image quality be like?

For this reason, night vision plays an important role in lens selection.

Can Halos and Glare Occur with EDOF Lenses?

Some people may experience halos or light scatter.

However, this may vary depending on the lens design, eye anatomy and individual visual sensitivity.

For this reason, not every patient has the same experience.

Is There a Difference in Night Vision Between EDOF and Multifocal Lenses?

These two groups of lenses work according to different optical principles.

For this reason, they may have different advantages and limitations in terms of night-vision experience and expectations for visual quality.

However, the more suitable option varies from person to person.

Why Is Night Vision Important When Choosing a Lens?

Night-vision expectations are an important part of treatment planning particularly for:

  • People who drive at night
  • People with active working lives
  • People who are sensitive to quality of vision

These groups may place particular importance on night vision.

For this reason, lens selection should not be based only on the goal of reducing dependence on glasses.

Conclusion

EDOF lenses may offer many patients a balanced option between quality of vision and independence from glasses.

However, night-vision performance and visual expectations may vary from person to person.

The most appropriate lens should therefore be selected by considering eye anatomy, lifestyle and visual priorities together.