Research into red light therapy and photobiomodulation has explored a range of potential applications involving retinal function, mitochondrial activity, oxidative stress, inflammation, visual performance, and eye comfort.

Retinal & Mitochondrial Function

Mitochondria are responsible for producing cellular energy. Because retinal cells have high energy requirements, researchers have investigated whether red light may influence mitochondrial activity and support retinal cellular function.

Visual Performance

Human research involving 670nm light has reported changes in certain aspects of visual performance, including color contrast sensitivity.

Eye Wellness

Photobiomodulation has also been studied in relation to oxidative stress, inflammation, cellular metabolism, and age-related changes in retinal function.

Eye Comfort

Light-based therapies are also being investigated for applications involving eye comfort and meibomian gland dysfunction. However, research findings vary depending on the treatment method, light intensity, wavelength, and condition being studied.

Individual results vary, and ongoing research is needed to better understand the potential applications of 670nm photobiomodulation.

Suggested Starting Routine

If you are new to red light therapy, start with a shorter session and allow your eyes to become accustomed to the light.

A practical starting routine is approximately 10 minutes per session, 1–3 times per week.

Morning Use

Some human research involving 670nm light has specifically investigated morning exposure. For this reason, morning use can be a convenient option when incorporating 670nm red light into your wellness routine.

Eyes Open

V2.0 is designed as an open-eye wearable. You do not need to wear an opaque eye mask or close your eyes during normal use.

Choose Your Timer

Select 10, 15, 20, or 30 minutes depending on your preferred routine and comfort level. The glasses automatically shut off when the selected time has elapsed.

Longer sessions are not necessarily better. Light intensity and exposure time both matter, and research protocols can vary considerably.

Interest in 670nm red light for eye wellness is supported by a growing body of scientific research.

Researchers have investigated long-wavelength light in relation to mitochondrial function, retinal aging, inflammation, oxidative stress, and visual performance.

Selected Research

1. Weeklong improved colour contrast sensitivity after single 670 nm exposures associated with enhanced mitochondrial function
   View Research →
2. Aging retinal function is improved by near infrared light (670 nm) that is associated with corrected mitochondrial decline
   View Research →
3. Pilot Study Evaluating the Effects of 670 nm Photobiomodulation in Healthy Ageing and Age-Related Macular Degeneration
   View Research →
4. Optical monitoring of retinal respiration in real time: 670 nm light increases the redox state of mitochondria
   View Research →
5. Treatment with 670 nm light up regulates cytochrome C oxidase expression and reduces inflammation in an age-related macular degeneration model
   View Research →
6. Age-related retinal inflammation is reduced by 670 nm light via increased mitochondrial membrane potential
   View Research →
7. Exposure to long wavelength light that improves aged mitochondrial function shifts acute cytokine expression in serum and the retina
   View Research →
8. Does photobiomodulation influence ageing?
   View Research →

Research is ongoing, and findings from laboratory, animal, and human studies should not automatically be interpreted as proof of a specific health outcome for every user.

1. Can red light therapy improve vision?

Research involving 670nm photobiomodulation has reported improvements in certain aspects of visual performance, including color contrast sensitivity.

For example, a UCL-associated human study investigated a single exposure to 670nm deep red light and reported an improvement in color contrast sensitivity that persisted for several days.

However, individual responses vary, and red light therapy should not be considered a guaranteed method for restoring lost vision.

2. How often should I use 670nm red light therapy glasses?

A practical starting point is approximately 10 minutes per session, 1–3 times per week.

Research protocols vary depending on wavelength, irradiance, exposure duration, device design, and the objective of the study.

3. Why does V2.0 have 10, 15, 20 and 30-minute timers?

Different research protocols use different exposure durations and light intensities.

V2.0 therefore provides multiple timer options so users can choose a session duration that fits their personal routine and comfort level.

4. Can I wear contact lenses while using the glasses?

Standard contact lenses generally allow visible red light to pass through. However, contact lenses vary in material and design.

If you have specific concerns about your contact lenses, consult your eye-care professional.

5. Can I use red light therapy glasses after cataract surgery?

If you have recently undergone cataract surgery, follow your ophthalmologist's post-operative instructions before using any light-based device.

Individual healing and light sensitivity vary after surgery. If your eyes remain sensitive or your doctor has given you specific restrictions, follow their advice.

6. Can I use the glasses with an intraocular lens (IOL)?

If you have an implanted IOL, including a UV-filtering IOL, ask your ophthalmologist if you have concerns about using a 670nm light device.

The appropriate recommendation depends on your eye health, surgery history, and individual circumstances.

7. Can red light therapy cure glaucoma?

No. Lukirch red light therapy glasses are not a cure for glaucoma and should never replace prescribed glaucoma treatment.

Research into photobiomodulation and retinal or optic-nerve health is ongoing.

8. Why do I see different colors after using red light glasses?

Some people experience temporary afterimages or changes in color perception after exposure to strong colored light.

This can occur because the photoreceptors in the eyes adapt to the strong red stimulus.

The effect normally fades after exposure ends. If you experience persistent visual changes, pain, flashes, or other unusual symptoms, stop using the product and consult an eye-care professional.

9. Can red light therapy help dry eyes?

Photobiomodulation and low-level light therapy have been investigated for dry-eye-related conditions, including situations involving meibomian gland dysfunction.

However, research findings vary depending on the treatment method and condition being studied.

Lukirch glasses are intended for wellness and light-therapy use and should not replace professional diagnosis or treatment for dry eye disease.

10. Can red light therapy help with macular degeneration?

Research has investigated whether 670nm and near-infrared photobiomodulation may support retinal mitochondrial function and visual performance in age-related retinal conditions.

However, Lukirch red light therapy glasses do not cure or reverse macular degeneration.

Anyone diagnosed with AMD should continue their ophthalmologist-recommended treatment and monitoring.

11. Why don't I notice an immediate effect?

Red light therapy is not necessarily something you will feel immediately.

Individual responses can vary according to age, eye health, baseline visual function, exposure history, and other factors.

Some research has reported measurable changes in visual performance after exposure, while other potential applications require further study.

Consistency and realistic expectations are important.

IEC 62471 is an international standard used to evaluate the photobiological safety of lamps and lamp systems.

The standard provides a framework for evaluating potential photobiological risks associated with optical radiation, including exposure to the eyes and skin.

Lukirch V2.0 has been tested according to IEC 62471.

We believe customers should be able to see the testing information behind the product rather than simply relying on marketing claims.

Lukirch Red Light Therapy Glasses are designed for wellness and light-therapy use.

This product is not intended to diagnose, treat, cure, or prevent any disease.

The information provided on this page is for educational purposes and should not replace professional medical advice.

If you have an eye disease, have recently undergone eye surgery, experience unusual visual symptoms, or are under the care of an ophthalmologist, consult your eye-care professional before using a light-based device.

Stop use if you experience significant discomfort, persistent visual changes, pain, flashes, or other unusual symptoms.

Individual results vary.