Ever sat under a red light therapy panel and wondered: “Wait, is this even safe for my eyes?” You’re not alone.

At Cure on Call, we’ve encountered this question from concerned patients, wellness enthusiasts, and even some physiotherapists dipping their toes into red light therapy. The glowing promises of reduced inflammation, pain relief, and even anti-ageing benefits are everywhere—but when it comes to eye health, things get blurry (sometimes literally).

Let’s break it all down. With research-backed insight, real-world examples, and expert opinions, we’ll help you make an informed decision—without the guesswork.

What Is Red Light Therapy and How Does It Work?

Red light therapy (RLT), also known as low-level light therapy (LLLT) or photobiomodulation, involves exposing the body to low wavelengths of red or near-infrared light. Unlike ultraviolet (UV) light, which can damage skin and eyes, red light is thought to penetrate deeper into tissues and promote cellular repair.

This technology is used in physiotherapy, dermatology, and sports medicine. At Cure on Call, we use it primarily to manage musculoskeletal pain and enhance tissue recovery. But despite its popularity, questions about eye safety remain.

Why the Concern About Eyes?

The eyes are among the most sensitive organs in the human body. Even though red light is non-ionising and doesn’t cause DNA damage like UV rays, prolonged exposure could still have effects—good or bad—depending on the intensity, duration, and frequency.

Anecdotally, we’ve had a few patients report slight discomfort after sitting too close to red light panels without protective eyewear. Others felt nothing at all. That variation alone tells us this isn’t a black-and-white issue.

What Does the Science Say?

1. Protective or Harmful? A Nuanced Look

A 2018 study published in Scientific Reports found that exposure to 670nm red light improved mitochondrial function in aged retinal cells. In other words, it helped older eyes function better. Source

However, the same wavelength and exposure in a poorly controlled setting might cause photochemical stress, especially if users go overboard.

Dr. Glen Jeffery, a neuroscience professor at University College London, explains: “Short bursts of red light in the morning may help maintain retinal health, particularly as we age. But it’s not a free-for-all—you still need to consider exposure time and intensity.”

2. Ophthalmologists Weigh In

According to the American Academy of Ophthalmology, while brief and indirect exposure to red light panels is generally considered safe, direct eye contact with high-intensity LEDs should be avoided without proper eye protection.

They recommend closing the eyes or using protective goggles, especially during full-face or head-area treatments.

Personal & Clinical Observations

At Cure on Call, our physiotherapy team started integrating red light therapy for patients recovering from soft tissue injuries. During our initial phase, one patient—Ms Shazia, aged 62—reported mild eye strain after her second session. We quickly adjusted the treatment protocol, introduced shaded goggles, and the symptoms resolved completely.

Since then, we’ve adopted the precautionary rule: If light reaches the eyes, use eye protection.

We’ve also tested different setups in our clinic—standing, seated, and targeted—and found that distance and angle significantly affect comfort and safety. Panels aimed at the knees or back pose minimal eye risk compared to facial treatments.

When Might Red Light Therapy Benefit Eye Health?

Ironically, the same therapy that worries people could actually protect your eyes—when used correctly.

• Age-related macular degeneration (AMD): Studies suggest low-level red light exposure can slow down or partially reverse early signs of AMD.
• Retinal repair: Red light may enhance ATP production in the retina, which supports cellular energy.

But these benefits often come from controlled, lab-tested doses—not your average at-home device.

How to Use Red Light Therapy Safely Around the Eyes

1. Always Read the Manufacturer’s Instructions
Not all devices are created equal. Ensure yours is certified, and follow usage time limits.

2. Keep a Safe Distance
Aim for 12–18 inches away from your face unless the manufacturer advises otherwise.

3. Use Protective Eyewear
This is especially important if you’re treating areas near the eyes. Most high-quality RLT panels come with goggles—use them.

4. Limit Exposure Time
We recommend no more than 10–15 minutes of facial exposure per session, 3–5 times a week.

5. Watch for Warning Signs
Dryness, irritation, or strain? Stop and consult a specialist.

FAQs

Is red light therapy safe for eyes if I keep them closed?

Generally, yes. But for high-intensity panels, it’s still safer to use goggles even with closed eyes.

Can red light therapy improve my vision?

Some early research suggests it might support retinal function in ageing eyes, but it’s not a substitute for medical treatment or corrective lenses.

Are all red light devices equally safe?

No. Cheaper or unregulated devices may emit inconsistent wavelengths or intensities. Stick to reputable brands.

Should children use red light therapy near the face?

We recommend extreme caution. Children’s eyes are more sensitive, and any facial treatment should be under professional supervision.

Final Verdict: Is Red Light Therapy Bad for Your Eyes?

Not necessarily—but caution is key.

Used appropriately, red light therapy may even benefit eye health. But uncontrolled use, especially close to the eyes without protection, carries risk.

From our clinical experience at Cure on Call, the safest path is to combine evidence-based protocols with personal monitoring. When in doubt, wear those goggles.

Have you used red light therapy? Did you notice anything around your eyes?

Share your experience in the comments—or send us a message. We’re listening.