Doctor Eye Health Podcast

Can red light therapy improve your vision? Research suggests photobiomodulation may benefit certain eye conditions, including some forms of dry age-related macular degeneration. However, evidence does not show that red light generally improves nearsightedness, farsightedness or age-related reading vision in otherwise healthy eyes.

Dr. Joseph Allen speaks with vision scientist Dr. Lisa Ostrin about the science behind red light therapy, how photobiomodulation affects cells and mitochondria, and why the type of device, wavelength, intensity, and treatment protocol all matter.

They examine the difference between lower-energy LED devices and focused red-light lasers, including repeated low-level red-light...

Have you noticed yellow deposits on your eyelids or a gray ring around your cornea? These eye changes may be associated with high cholesterol or other lipid disorders, but they do not prove that your cholesterol levels are high.

Dr. Joseph Allen explains three signs of cholesterol in and around the eyes: corneal arcus, xanthelasma, and Hollenhorst plaques. He also shares when these findings may be harmless and when they could signal an underlying cardiovascular concern.

You will learn when a gray or white ring around the cornea may be a normal part of aging...

Can Ozempic, Wegovy, Mounjaro, and other GLP-1 medications cause vision loss? Emerging research has found a possible association between these medications and NAION, a rare optic nerve condition that can cause sudden, painless, and potentially permanent vision loss.

Dr. Joseph Allen is joined by Dr. Andrew Morgenstern, an optometrist, clinical educator, and leading authority on GLP-1 medications and eye health. They examine what current evidence shows, how significant the risk may be, and which patients may require closer monitoring.

Dr. Morgenstern explains how NAION affects blood flow to the optic nerve, what a “disc at ri...

What are the best contact lenses in 2026? The right contact lens depends on your prescription, eye shape, replacement schedule, budget, comfort, dry eye symptoms, and whether you need astigmatism correction.

In this episode of the Doctor Eye Health Podcast, Dr. Joseph Allen compares the newest daily, weekly, biweekly, and monthly contact lenses. Drawing on more than a decade of clinical experience and over 23 years as a contact lens wearer, he explains which lenses he commonly recommends and why no single brand works best for everyone.

You will learn how Dailies Total1 compares with Precision1, which...

What can your eyes reveal about your overall health? Redness, yellowing, unequal pupils, eyelid bumps, corneal rings, and pain with eye movement may sometimes point to health concerns involving the liver, thyroid, cholesterol, nervous system, or immune system.

On the Doctor Eye Health Podcast, Dr. Joseph Allen explains nine visible eye signs that may offer clues about what is happening elsewhere in the body.

You will learn when red eyes may be connected to inflammation, why yellow eyes can indicate jaundice, and how a white or yellow ring around the cornea may relate to cholesterol...

What are the best foods for eye health? Pistachios, leafy greens, goji berries, oily fish, oysters, sweet potatoes, kiwi, turmeric, and saffron provide nutrients that may support the retina, tear film, night vision, and long-term eye health.

In this episode of the Doctor Eye Health Podcast, Dr. Joseph Allen shares nine of his favorite foods for healthy eyes and explains why carrots are not at the top of his list. He explores how lutein, zeaxanthin, omega-3 fatty acids, zinc, vitamin A, vitamin C, and other antioxidants contribute to healthy vision.

You will also learn how...

What should you know before cataract surgery, and how do you choose the right lens implant for your vision?

Cataract surgery is one of the most commonly performed eye surgeries, but deciding when to have surgery, what type of lens implant to choose, and what recovery will actually look like can feel overwhelming.

In this episode of the Doctor Eye Health Podcast, Dr. Joseph Allen sits down with ophthalmologist and refractive cataract surgery specialist Dr. Gary Wörtz to answer the biggest questions about cataracts and cataract surgery.

They break down what causes c...

What is the rarest eye color in the world? Dr. Joseph Allen ranks nine eye-color appearances from the most common to the rarest while explaining the genetics, pigments and medical conditions that can influence how the eyes look.

On the Doctor Eye Health Podcast, discover why brown is the world’s most common eye color, why blue eyes do not contain blue pigment and what makes green, gray, amber and hazel eyes less common.

Dr. Allen explains how melanin, collagen and light scattering create different eye colors. He also explores why albinism can make eyes ap...

How much omega-3 should you take for dry eyes? Research commonly evaluates between 1,000 and 3,000 milligrams of combined EPA and DHA daily, but the benefits can vary depending on the person, dosage, supplement quality and type of dry eye disease.

On the Doctor Eye Health Podcast, Dr. Joseph Allen examines the research behind omega-3 fatty acids for dry eye relief. He explains how omega-3s may help reduce inflammation, improve tear film stability and support healthier meibomian gland secretions.

You will learn the difference between EPA, DHA and plant-based ALA, why the amount of fish oil...

Can Ozempic, Wegovy and other GLP-1 medications cause vision loss? Emerging research is examining a possible connection between semaglutide and non-arteritic anterior ischemic optic neuropathy, or NAION, a rare condition that causes sudden and often permanent vision loss.

On the Doctor Eye Health Podcast, Dr. Joseph Allen explains what current research says about GLP-1 medications and eye health, how significant the risk may be and which patients could be more vulnerable.

You will learn the warning signs of NAION, including sudden painless vision loss, missing areas of vision and changes in color perception. Dr. Allen...

Can too much sugar affect your eyesight? Elevated blood sugar can cause blurry vision, cataracts, eye floaters, dry eye and diabetic retinopathy. In severe cases, it may contribute to retinal detachment, double vision and permanent vision loss.

On the Doctor Eye Health Podcast, Dr. Joseph Allen explains 10 ways high blood sugar can affect the eyes. He breaks down what happens when sugar damages the delicate blood vessels, nerves, lens and tear film of the eye.

You will learn why blurry vision may be connected to changing blood sugar levels, how diabetes can cause bleeding and...

How do your eyes change as you age and what can you do to protect your vision? Dr. Joseph Allen explains the most common age-related eye conditions, including presbyopia, cataracts, drooping eyelids and age-related macular degeneration.

Getting older may be unavoidable, but vision loss is not always inevitable. Understanding how aging affects the eyes can help you recognize early warning signs, manage your risk factors and make informed decisions about your eye health.

On the Doctor Eye Health Podcast, Dr. Allen breaks down why near vision often becomes blurry after age 40, how cataracts develop and...

What causes meibomian gland dysfunction and how is it treated? Meibomian gland dysfunction, or MGD, occurs when the oil glands in the eyelids become blocked or inflamed, leading to evaporative dry eye, blurry vision, redness, irritation and watery eyes.

An estimated 80% to 90% of dry eye cases show signs of meibomian gland dysfunction, yet many people do not recognize the symptoms. Eye fatigue, light sensitivity, fluctuating vision and the feeling that something is stuck in your eye may all be connected to unhealthy meibomian glands.

On the Doctor Eye Health Podcast, Dr. Joseph Allen explains how...

Why do so many dry eye treatments fail, even after trying prescription eye drops, warm compresses, IPL, supplements, and expensive procedures? Most dry eye treatments fail because dry eye disease usually has multiple underlying causes that require a personalized treatment plan, not a single solution.

On the Doctor Eye Health Podcast, board-certified optometrist Dr. Joseph Allen sits down with leading dry eye specialist Dr. Laura Periman to explain why chronic dry eye can be so difficult to diagnose and treat.

Dr. Periman reveals how meibomian gland dysfunction (MGD), inflammation, Demodex mites, eyelid microbiome imbalances, nerve...

Are eye floaters dangerous? Should you worry if you suddenly notice floating spots, cobwebs, or dark specks drifting across your vision? In this episode of the Doctor Eye Health Podcast, board-certified optometrist Dr. Joseph Allen explains everything you need to know about eye floaters, including what causes them, when they're considered a medical emergency, and the latest treatment options available.

Learn why floaters develop as you age, why nearsighted people often experience them earlier, and how to recognize the warning signs of a retinal tear or retinal detachment that require immediate medical attention. Dr. Allen also reviews...

Cheap vs. expensive sunglasses: Which sunglasses actually protect your eyes? Are premium sunglasses worth the money, or will cheap sunglasses provide the same UV protection? In this episode of the Dr. Eye Health Podcast, Dr. Joseph Allen compares cheap sunglasses, polarized sunglasses, and premium sunglasses to explain UV protection, polarized lenses, eye health, and how to choose the best sunglasses for your vision.

Dr. Joseph Allen compares $10 budget sunglasses, $100 mid-range sunglasses, and $300 premium sunglasses to reveal what you're actually paying for. Learn how UV protection, polarized lenses, optical clarity, lens quality, frame durability, anti-reflective coatings, and premium...

Could your hormones be causing your dry eyes? Hormonal changes during perimenopause and menopause affect far more than hot flashes. They can impact your vision, eye comfort, sleep, mood, brain health, muscle mass, and overall quality of life. In this episode, Dr. Joseph Allen sits down with menopause specialist Dr. Jen Zelovitzky to explain how declining estrogen affects the eyes and why so many women develop dry eye symptoms after 40.

Together, they explore the science behind hormone changes, why dry eye becomes more common during perimenopause and menopause, the role of hormone replacement therapy (HRT), and the...

Looking for the best eye cream for dark circles, under eye bags, puffiness, and wrinkles? The skincare aisle is packed with products promising brighter, younger-looking eyes, but which ingredients actually work?

In this episode of the Doctor Eye Health Podcast, Dr. Joseph Allen breaks down the science behind under eye creams and reviews three eye cream options backed by research and clinical experience. Learn how ingredients like niacinamide, caffeine, vitamin C, and hyaluronic acid may help improve dark circles, reduce puffiness, and support healthier-looking skin around the eyes.

Dr. Allen also discusses why some skincare...

Most people believe the only ways to improve vision are glasses, contact lenses, or LASIK. But emerging research suggests there may be more to vision improvement than simply seeing smaller letters on an eye chart.

In this episode, Dr. Joseph Allen explores the latest science behind vision improvement, eye health, red light therapy, macular degeneration, eye vitamins, contrast sensitivity, glare reduction, lutein, zeaxanthin, and vision training. You'll learn what the research actually shows, what social media gets wrong, and which strategies may help improve visual performance, retinal health, and overall eyesight.

From FDA-approved photobiomodulation treatments...

Could intermittent fasting improve your vision and support better eye health? In this episode, Dr. Joseph Allen explores the science behind intermittent fasting, eye health, vision improvement, dry eye disease, glaucoma, diabetic retinopathy, inflammation, and healthy aging. Learn how intermittent fasting may help protect vision, support eye health, and influence common eye diseases.

From reducing inflammation and oxidative stress to improving blood sugar control and activating cellular repair processes like autophagy, intermittent fasting may offer surprising benefits for your eyes. Dr. Allen reviews the latest research on intermittent fasting and eye health, including its potential effects on...

Experiencing blurred vision, double vision, headaches, dizziness, or difficulty reading after a concussion? You're not alone.

On the Dr. Eye Health Podcast, Dr. Joseph Allen explores how concussions and traumatic brain injuries (TBI) can affect the visual system, even when a standard eye exam appears normal.

Learn why symptoms such as eye strain, light sensitivity, trouble focusing, visual fatigue, and reading difficulties are so common after a head injury. Dr. Allen explains three of the most frequently diagnosed post-concussion vision disorders: accommodative insufficiency, convergence insufficiency, and saccadic dysfunction.

You'll also discover why these...

Can red light therapy actually improve your vision?

Can red light therapy actually improve your vision? Optometrist Dr. Joseph Allen breaks down the latest research on red light therapy, photobiomodulation, macular degeneration, dry eye disease, diabetic retinopathy, and myopia control. Learn how red light affects retinal health, inflammation, mitochondria, and eye safety, plus the major risks of using unregulated LED devices at home. If you’ve been curious about infrared light therapy, vision improvement, or eye wellness trends, this episode is a must-listen.

What You Will Learn

✅ How red light therapy works inside the...

One snowboard crash changed everything. After suffering a concussion while snowboarding in Canada, Dr. Joseph Allen shares the emotional and physical reality of concussion recovery, traumatic brain injury, memory loss, and vision problems after concussion on this episode of the Doctor Eye Health podcast. Joined by neuro-optometrist Dr. Jacqueline Theis, they break down post-traumatic amnesia, brain injury rehabilitation, and how modern concussion treatment has evolved beyond simply resting in a dark room.

What You Will Learn

✅ How concussion symptoms can appear without headaches or dizziness

✅ Why vision problems are common after traumatic brain inju...

Thinking about LASIK, PRK, ICL, or cataract surgery? The biggest risk to your vision isn’t the procedure, it’s what you do after. Learn the most common eye surgery recovery mistakes, how to prevent dry eye after surgery, and the exact steps to protect your vision and healing for the best possible outcome.

Eye surgery recovery can make or break your results. Whether you’re preparing for LASIK, PRK, SMILE, ICL, or cataract surgery, knowing what to avoid is just as important as the procedure itself.

On the Dr. Eye Health Podcast, Dr. Joseph Allen...

Preparing for eye surgery isn’t just about the procedure, it’s about optimizing your eye health, tear film, and recovery before you ever step into the clinic. Whether you're considering LASIK, PRK, cataract surgery, or ICL, the steps you take before surgery can directly impact your results, healing time, and risk of dry eye complications.

On the Dr. Eye Health Podcast, Dr. Joseph Allen breaks down the exact pre-surgery protocol he personally followed before his own ICL procedure. From eyelid hygiene and tear film optimization to supplements and lifestyle habits, this episode gives you a complete, rese...

Struggling with red, itchy eyes, watery irritation, or puffy eyelids? Eye allergies can seriously mess with your day and even stop you from wearing contact lenses. The good news is there are simple, effective at-home remedies and over-the-counter solutions that can calm symptoms fast and help protect your eyes long term.

Eye allergies are more common than most people realize, and they don’t just affect people who think they have allergies. In this episode, we break down exactly what causes eye allergy symptoms, how eye doctors diagnose them, and the best ways to treat red, itchy, an...

Most people are taking omega-3 supplements wrong… and don’t even realize it.

In this expert-led episode, omega-3 fatty acids are broken down simply covering EPA vs DHA, real omega-3 benefits, proper dosing, testing your omega-3 index, and the truth about side effects.

Dr. Joseph Allen sits down with leading researcher Dr. Bill Harris to explain how omega-3 works in the body, how much EPA and DHA you actually need, and how to know if your fish oil supplement is effective.

You’ll learn why most people are underdosing, how to choose the right...

Do sunglasses cause skin cancer? Are sunglasses bad for your eyes or actually protecting you from UV damage? Eye doctor Dr. Joseph Allen breaks down the truth about sunglasses, UV light exposure, and skin cancer risk.

With viral claims spreading online, this episode explains how UV radiation affects your eyes and skin, whether sunglasses block “beneficial” sunlight, and if sunglasses could increase your risk of skin cancer.

Learn how UV exposure impacts eye health, vision, and long-term damage, including sunburn on the eye, photokeratitis, and skin cancer risks around the eyes.

If you’ve eve...

Red light therapy for eye health is everywhere right now, but what’s real, what’s hype, and what actually works? Dr. Joseph Allen sits down with ophthalmologist Dr. Robert Dotson to break down the science behind photobiomodulation, red light therapy, and how it may impact conditions like dry eye, macular degeneration, and more.

With over 40 years of experience and decades researching light-based treatments, Dr. Dotson shares what the research really says about wavelengths, safety, dosing, and the growing number of at-home devices entering the market.

In This Episode, You Will Learn:

✅...

Dry eyes won’t improve if you’re using the wrong artificial tears. Most people are making common dry eye mistakes that actually make symptoms worse. In this episode of the Dr. Eye Health Podcast, Dr. Joseph Allen breaks down how to choose the best eye drops for dry eyes, including preservative-free artificial tears, lipid vs aqueous drops, and key ingredients like hyaluronic acid. Learn how to treat dry eye symptoms, reduce eye irritation, and improve blurry vision with the right strategy. If you struggle with chronic dry eye, burning eyes, red eyes, or screen-related dryness, this episode will help...

Macular degeneration is a leading cause of vision loss after age 50, but most people miss the early signs of macular degeneration until it’s too late. On the Dr. Eye Health Podcast, Dr. Joseph Allen is joined by retinal expert Dr. Carolyn Majcher to break down age-related macular degeneration (AMD), including symptoms, causes, and treatment options like anti-VEGF injections, OCT imaging, and red light therapy. Learn how to detect macular degeneration early, protect your central vision, and slow progression with lifestyle changes, nutrition, and modern eye care technology.

In This Episode You Will Learn

✅ What macu...

Myopia is rising fast and the global myopia epidemic is becoming a serious public health concern. In some regions, nearly 90% of the population is now myopic, with rates of myopia in children increasing every year. But myopia isn’t just about needing glasses earlier in life. Progressive myopia significantly increases the risk of serious and potentially blinding eye diseases like retinal detachment, glaucoma, cataracts, and myopic maculopathy, making myopia prevention and myopia control more important than ever.

On the Dr. Eye Health Podcast, Dr. Joseph Allen is joined by pediatric ophthalmologist Dr. Rupa Wong to unpack the gl...

Dry eye disease is not just about eye drops. Daily habits, screen time behavior, hydration, sleep, and environmental exposure all play a major role in dry eye symptoms, eye inflammation, and ocular surface disease.

On the Doctor Eye Health Podcast, Dr. Joseph Allen breaks down the lifestyle changes for dry eye disease that actually help reduce symptoms, improve tear film stability, and support long-term dry eye relief. Learn which daily habits worsen dry eye, which ones protect your eyes, and how small changes can make a big difference for evaporative dry eye and meibomian gland dysfunction.

What if your dry eye, macular degeneration, or even glaucoma didn’t actually begin in your eyes? What if the root cause of your eye inflammation started with poor gut health?

On the Dr. Eye Health Podcast, Dr. Joseph Allen sits down with dry eye specialist and nutrition expert Mila Ioussifova to explain the gut–eye axis and how gut imbalance and microbiome health may be fueling dry eye disease, glaucoma, and macular degeneration.

From gut health and dry eye to probiotics, inflammation, and autoimmune eye disease, this conversation explores how your microbiome may be affe...

Advanced dry eye disease often requires treatment beyond eye drops. Dr. Joseph Allen explores advanced dry eye treatments, including prescription medications and in-office procedures designed to reduce inflammation, improve tear film stability, and treat meibomian gland dysfunction. Learn why artificial tears are not always enough, how evaporative dry eye develops, and what modern ocular surface disease treatment options can provide lasting dry eye relief.

What You’ll Learn

✅ Why artificial tears are often not enough for dry eye disease

✅ How inflammation drives chronic dry eye symptoms

✅ What prescription dry eye medications actually...

When dry eyes turn into chronic eye pain, it may no longer be just a tear problem. Severe dry eye can evolve into neuropathic eye pain and neurotrophic keratitis due to corneal nerve damage and trigeminal nerve dysfunction.

Why do some people have intense eye pain with a normal exam, while others have corneal damage but feel nothing?

Dr. Joseph Allen is joined by cornea specialist Dr. Laura Periman and neuro-optometrist Dr. Jacqueline Theis to break down the science behind chronic ocular pain.

In This Episode You Will Learn

✅ Why dry ey...

Warm compresses for dry eyes are one of the most recommended treatments, yet most people are doing them wrong. Dr. Joseph Allen explains how warm compress therapy works, the correct time and temperature, and how heat supports meibomian gland function, tear film stability, and long-term relief from dry eye disease, meibomian gland dysfunction MGD, blepharitis, and eyelid inflammation, while also covering evidence based methods, eyelid massage, rosacea considerations, safety concerns, and when cold compresses may be the better option for irritated eyes.

If you struggle with dry eyes, burning, fluctuating vision, or eyelid irritation, this episode provides...

Dry eye syndrome can cause burning, irritation, fluctuating vision, and long-term damage to the corneal surface. In this episode, Dr. Joseph Allen shares his personal dry eye journey, what actually causes dry eye disease, and how omega-3 supplements, lifestyle habits, and modern treatments can help stabilize the tear film and bring dry eye into remission. From contact lens wear and screen time to meibomian gland dysfunction, IPL therapy, and omega-3 dosing, this episode breaks down what really works for long-term dry eye relief.

In This Episode You Will Learn

✅ Why dry eye often starts with co...

Dry eyes, burning, redness, irritation, blurry vision, and eye fatigue affect millions of people every day. If you’ve ever struggled with dry eye syndrome, you’ve probably tried artificial tears, warm compresses, eye drops, and lifestyle changes with mixed results. But what if the best natural treatment for dry eyes isn’t another eye drop at all?

In this episode of the Dr. Eye Health Podcast, Dr. Joseph Allen breaks down the science behind omega-3 fatty acids for dry eye treatment and why omega-3 supplementation has become one of the most researched natural solutions for improving tear p...

You’ve been told to take eye vitamins. You’ve seen lutein supplements everywhere. You’ve probably heard that leafy greens protect your vision and that nutrition alone should be enough. But what if most of what you’ve been told about eye vitamins, retinal health, and vision supplements is outdated, incomplete, or just flat wrong?

In the Doctor Eye Health Podcast, Dr. Joseph Allen sits down with Professor John Nolan, one of the world’s leading researchers in macular carotenoids, eye nutrition, and brain health, to break down the real science behind eye vitamins, lutein, zeaxanthin, macular pi...