Doctor Eye Health Podcast

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 also discusses diabetic retinopathy, macular degeneration and the importance of receiving a comprehensive dilated eye exam before or shortly after beginning a GLP-1 medication.
GLP-1 medications can provide important benefits for diabetes, weight management and cardiovascular health. This episode is not intended to tell anyone to stop taking them. Instead, it provides information to help patients discuss their individual risks with their prescribing doctor and eye care team.
What You’ll Learn
✅ How Ozempic, Wegovy and other GLP-1 medications may affect the eyes
✅ The symptoms and potential risk of an eye stroke called NAION
✅ Who may be more vulnerable to GLP-1-related vision complications
✅ When to schedule a comprehensive dilated eye examination
🔔 Subscribe for more free eye health education and tips:
http://www.youtube.com/doctoreyehealth
Timestamps
(00:00) GLP-1 medications and potential vision loss
(00:51) What current research says about GLP-1 drugs
(03:02) Why GLP-1 medications are commonly prescribed
(03:54) Understanding NAION and optic nerve strokes
(04:16) Warning signs of NAION
(05:01) How significant is the vision-loss risk?
(06:26) Low-vision rehabilitation after permanent vision loss
(07:03) Diabetic retinopathy and macular degeneration
(08:31) Who may be most at risk?
(10:01) Eye exam recommendations for GLP-1 users
(10:30) Should you stop taking a GLP-1 medication?
(11:14) Why the guidance may continue to evolve

Key Takeaways
🔹 NAION can cause sudden, painless and often permanent vision loss, typically affecting one eye. Some people lose the upper or lower half of their visual field or notice that colors appear less vivid.
🔹 The absolute risk of NAION appears to be low, but research continues to examine a possible association with semaglutide and other GLP-1 medications.
🔹 People over 50 and those with diabetes, high blood pressure, high cholesterol, obstructive sleep apnea or a crowded optic nerve may have additional risk factors.
🔹 Do not stop taking a prescribed GLP-1 medication without speaking with your prescribing doctor. Ask whether you should receive a baseline comprehensive dilated eye exam and how frequently your eyes should be monitored.
Resources & Research Mentioned
American Optometric Association GLP-1 Clinical Report:
https://www.aoa.org/AOA/Documents/Practice%20Management/Clinical%20Guidelines/AOA%20GLP-1_EBO_clinical-report.pdf
Semaglutide and the Risk of NAION:
https://jamanetwork.com/journals/jamaophthalmology/fullarticle/2820255
GLP-1 Receptor Agonists and Neovascular Age-Related Macular Degeneration:
https://jamanetwork.com/journals/jamaophthalmology/article-abstract/2834964
GLP-1 Receptor Agonists and Eye Health Research:
https://pubmed.ncbi.nlm.nih.gov/40631457/
GLP-1 Vision-Loss Lawsuits:
https://www.reuters.com/legal/government/lawsuits-claiming-ozempic-other-glp-1s-led-blindness-become-second-mass-2025-12-15/
Semaglutide and Cardiovascular Outcomes, SUSTAIN-6 Trial:
https://www.nejm.org/doi/10.1056/NEJMoa1607141
Find an Eye Doctor
http://bit.ly/4bj9ujz
Low-Vision Resources
APH ConnectCenter Blindness and Low-Vision Support:
https://aphconnectcenter.org/blindness-low-vision-support-resources/
State Vocational Rehabilitation Agencies:
https://rsa.ed.gov/about/states
Eye Health Products
My Top 5 Dry Eye Drops:
https://www.amazon.com/shop/doctoreyehealth/list/15I8QLDA5IEVX?ref_=aipsflist
Allergy Relief Products:
https://www.amazon.com/shop/doctoreyehealth/list/3U4XQXC21I5H9?ref_=aipsflist
Macular Support for AMD:
https://www.amazon.com/shop/doctoreyehealth/list/36B78D5BV2WWT?ref_=aipsflist
Dry Eye Supplements:
https://www.amazon.com/shop/doctoreyehealth/list/11OBTPPBDEWD5?ref_=aipsflist
Eyelid and Eyelash Care:
https://www.amazon.com/shop/doctoreyehealth/photo/amzn1.shoppablemedia.v1.collage.da009d66-35a9-467b-b355-9e32a7477d66?ref_=aipsfphoto
Ergonomics Support for Eyestrain:
https://www.amazon.com/shop/doctoreyehealth/list/1Z77TPOQ9LHKB?ref_=aipsflist
Dry Eye PM Support:
https://www.amazon.com/shop/doctoreyehealth/list/DDYUZXFKCMA6?ref_=aipsflist
⚠️ DISCLAIMER: This episode is for educational purposes only and does not replace professional medical advice, diagnosis or treatment. Do not stop or change a prescribed medication without consulting your healthcare professional. Seek immediate medical care for sudden vision loss or other significant vision changes.

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 swelling inside the eye and why new spots or floaters should never be ignored. Dr. Allen also discusses the connection between elevated blood sugar, eye infections, meibomian gland dysfunction and neurotrophic keratitis.
Having an occasional sweet treat does not automatically mean your eyes are at risk. However, people with diabetes, prediabetes, obesity or frequent blood sugar spikes should understand the warning signs and receive regular comprehensive eye exams.
What You’ll Learn
✅ Why elevated blood sugar can cause sudden blurry vision
✅ How diabetes may accelerate cataract development
✅ Why new floaters, distorted vision or double vision require medical attention
✅ How high blood sugar affects the retina, tear film and nerves of the eye
🔔 Subscribe for more free eye health education and tips:
http://www.youtube.com/doctoreyehealth
Timestamps
00:00 How sugar affects your eyes
01:15 Diabetes, prediabetes and eye health
02:25 How high blood sugar causes blurry vision
03:07 Sugar, cataracts and nighttime glare
03:26 Diabetic retinopathy and macular edema
04:09 New floaters and bleeding inside the eye
04:27 Abnormal blood vessels and retinal detachment
05:08 Eye infections, dry eye and meibomian gland dysfunction
05:50 Nerve damage and neurotrophic keratitis
06:11 Diabetes and double vision
06:49 Should you completely avoid sugar?
07:20 When to contact an eye doctor

Key Takeaways
🔹 Elevated blood sugar can cause the natural lens inside the eye to swell, temporarily changing your prescription and making your vision blurry.
🔹 Diabetes can damage the small blood vessels in the retina, causing fluid leakage, bleeding, macular edema and diabetic retinopathy.
🔹 New floaters, distorted central vision, double vision or sudden vision loss should be evaluated promptly by an eye doctor.
🔹 Regular comprehensive eye exams are essential for people with diabetes because retinal damage can develop before noticeable vision changes appear.
Video Version - https://youtu.be/71YkAYB31ZI
✅ Watch Next:
How diabetes affects the eyes: https://youtu.be/8vI_ptfl-eQ?si=6lhAccucxgHeW1kU
Intermittent Fasting and the eyes: https://youtu.be/0-NPDsNGEUE?si=qZnt9dz63vWdI6Wb
Best Foods for the Eyes: https://youtu.be/0YNotclndsk?si=x630tWiA_bkio1Vh
The Carnivore Diet and Eye Health: https://youtu.be/QyhNc3ocH1E?si=55DGGaynU-y-KOKZ
Bonus Tip for scrolling this far: EAT FIBER!
Gut Microbiome: https://youtu.be/Xu6MDC2Obss?si=S0_fgui_feGn6ADO
My top 5 Dry eye drops:
https://www.amazon.com/shop/doctoreyehealth/list/15I8QLDA5IEVX?ref_=aipsflist
Allergy Relief Products:
https://www.amazon.com/shop/doctoreyehealth/list/3U4XQXC21I5H9?ref_=aipsflist
Macular Support for AMD:
https://www.amazon.com/shop/doctoreyehealth/list/36B78D5BV2WWT?ref_=aipsflist
Dry Eye Supplements:
https://www.amazon.com/shop/doctoreyehealth/list/11OBTPPBDEWD5?ref_=aipsflist
Eyelid and Eyelash Care:
https://www.amazon.com/shop/doctoreyehealth/photo/amzn1.shoppablemedia.v1.collage.da009d66-35a9-467b-b355-9e32a7477d66?ref_=aipsfphoto
Ergonomics Support for Eyestrain:
https://www.amazon.com/shop/doctoreyehealth/list/1Z77TPOQ9LHKB?ref_=aipsflist
Dry Eye PM Support:
https://www.amazon.com/shop/doctoreyehealth/list/DDYUZXFKCMA6?ref_=aipsflist
Resources and fun reading
https://pubmed.ncbi.nlm.nih.gov/39329649/
https://pubmed.ncbi.nlm.nih.gov/41113480/
https://pmc.ncbi.nlm.nih.gov/articles/PMC3521312/
Resources Mentioned
Website: Doctor Eye Health https://www.doctoreyehealth.com/
YouTube: Doctor Eye Health https://www.youtube.com/@DoctorEyeHealth
Instagram: @doctoreyehealth https://www.instagram.com/doctoreyehealth
TikTok: Doctor Eye Health https://www.tiktok.com/@doctoreyehealth
Facebook: Doctor Eye Health https://www.facebook.com/DoctorEyeHealth
LinkedIn: Dr. Joseph Allen https://www.linkedin.com/
⚠️ DISCLAIMER: This video is for educational purposes only and does not replace professional medical advice, diagnosis, or treatment. Always consult your eye doctor or healthcare professional regarding concerns about your vision or eye health.
sugar and eye health, how sugar affects the eyes, high blood sugar symptoms, blurry vision, diabetes and eyesight, diabetic eye disease, diabetic retinopathy, macular edema, eye floaters, cataracts, double vision, retinal detachment, dry eye disease, meibomian gland dysfunction, neurotrophic keratitis, diabetes vision loss, blood sugar and blurry vision, eye health

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 makes macular degeneration especially concerning. He also examines the evidence behind eye vitamins, lutein, omega-3 fatty acids, astaxanthin and NAC eye drops.
You will also learn why smoking, high blood pressure, nutrition, UV exposure and annual comprehensive eye exams all matter when protecting your long-term vision.
What You’ll Learn
✅ Why reading and focusing up close become harder after age 40
✅ How cataracts form and which lifestyle factors may accelerate them
✅ The difference between dry and wet age-related macular degeneration
✅ What research says about eye vitamins, nutrition and omega-3 supplements
🔔 Subscribe for more free eye health education and tips:
http://www.youtube.com/doctoreyehealth
Timestamps
(00:00) How your eyes change as you get older
(03:14) Why near vision becomes blurry after age 40
(06:30) Presbyopia treatments and eye drops
(09:14) Astaxanthin supplements and eye fatigue
(10:11) What causes cataracts and changes in vision
(15:07) Can vitamins help prevent cataracts?
(18:08) Lutein, nutrition and NAC cataract eye drops
(21:03) Drooping eyelids, dermatochalasis and blepharoplasty
(24:04) Sunglasses, skincare and red light therapy
(25:10) Understanding age-related macular degeneration
(26:59) Dry versus wet macular degeneration
(28:36) AREDS2 vitamins and macular degeneration
(30:08) Eye injections and AMD treatment
(32:49) Fish, omega-3 supplements and eye health
(35:18) The Mediterranean diet and healthy aging

Key Takeaways
🔹 Presbyopia develops as the natural lens inside the eye becomes larger and less flexible with age. Glasses, contact lenses, prescription eye drops and certain surgical options may help manage it.
🔹 Cataracts are associated with aging and oxidative stress. Diabetes, smoking, alcohol use, steroid medications and UV exposure may increase the risk or speed up their development.
🔹 Age-related macular degeneration can gradually damage central vision without noticeable early symptoms. Regular comprehensive eye exams become especially important after age 40.
🔹 A heart-healthy eating pattern with fruits, vegetables, nuts, seeds and oily fish may support eye health. Supplements should be discussed with an eye doctor because evidence and recommended formulas vary by condition.
✅ Watch Next:
What Are Cataracts?
https://www.youtube.com/playlist?list=PLzi60fSuOmPAXfTyUXl5WWPGp-2dUZzm5
How to Get Rid of Eye Floaters
https://www.youtube.com/playlist?list=PLzi60fSuOmPATKbVDJtLdFk4E1RFDGtUe
Tips to Improve Eye Health and See Better!
https://www.youtube.com/playlist?list=PLzi60fSuOmPAMHow7zLaiSK3i9BefNXBU
Resources Mentioned
Website: Doctor Eye Health https://www.doctoreyehealth.com/
YouTube: Doctor Eye Health https://www.youtube.com/@DoctorEyeHealth
Instagram: @doctoreyehealth https://www.instagram.com/doctoreyehealth
TikTok: Doctor Eye Health https://www.tiktok.com/@doctoreyehealth
Facebook: Doctor Eye Health https://www.facebook.com/DoctorEyeHealth
LinkedIn: Dr. Joseph Allen https://www.linkedin.com/
⚠️ DISCLAIMER: This video is for educational purposes only and does not replace professional medical advice, diagnosis, or treatment. Always consult your eye doctor or healthcare professional regarding concerns about your vision or eye health.
aging eyes, age-related vision changes, how eyes age, presbyopia, blurry near vision, cataracts, cataract prevention, age-related macular degeneration, dry macular degeneration, wet macular degeneration, AREDS2 vitamins, eye vitamins, lutein, zeaxanthin, omega-3 eye health, vision loss prevention, healthy aging, eye health after 40

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 the meibomian glands protect the tear film, what causes the glands to become blocked and how eye doctors diagnose MGD using meibography, gland expression and tear breakup time testing.
Dr. Allen also explores the factors associated with meibomian gland dysfunction, including aging, hormonal changes, screen use, incomplete blinking, rosacea, blepharitis, Demodex mites, contact lenses, cosmetics and certain medications.
You will also learn about at-home dry eye treatments such as eyelid hygiene, warm compresses, eyelid massage and omega-3 fatty acids, along with in-office treatments including intense pulsed light therapy, red light therapy, thermal gland expression, radiofrequency, eyelid debridement and meibomian gland probing.
What You Will Learn
✅ What meibomian gland dysfunction is and how it causes evaporative dry eye
✅ The common symptoms of MGD, including blurry vision, watery eyes and eye fatigue
✅ How warm compresses, eyelid hygiene and omega-3s may support healthier tears
✅ Which professional MGD treatments may help open blocked meibomian glands
Sponsored by CEQUA®
This episode is sponsored by CEQUA® (cyclosporine ophthalmic solution) 0.09%, a prescription eye drop that helps increase tear production in people with chronic dry eye. Ask your eye doctor if CEQUA is right for you.
Learn More: https://doctoreyehealth.com/CEQUA-Home
Find a Doctor: https://doctoreyehealth.com/CEQUA-Find-a-Doctor
Timestamps
00:00 Why meibomian gland dysfunction matters
02:00 What the meibomian glands do
06:11 Signs of blocked or inflamed oil glands
09:34 Tear breakup time and tear film instability
10:54 Common symptoms of MGD
16:32 What causes meibomian gland dysfunction
20:36 Aging, hormones, screens and incomplete blinking
31:49 Blepharitis, rosacea and Demodex mites
38:19 At-home treatments for meibomian gland dysfunction
50:38 IPL, thermal expression and advanced MGD treatments
Key Takeaways
🔹 Healthy meibomian glands release a clear oil called meibum that stabilizes the tear film and helps prevent tears from evaporating too quickly.
🔹 MGD does not always feel like dry eye. It can also cause excessive tearing, fluctuating vision, glare, redness and light sensitivity.
🔹 Aging, hormonal changes, incomplete blinking, chronic inflammation, certain medications and eyelid conditions may contribute to meibomian gland dysfunction.
🔹 The right treatment depends on the health of the glands, the underlying cause and the severity of the condition, making a professional dry eye evaluation essential.
🤝 Sponsored by CEQUA®
This episode is sponsored by CEQUA® (cyclosporine ophthalmic solution) 0.09%, a prescription eye drop that helps increase tear production in people with chronic dry eye.
CEQUA comes in a single-use vial and is used by placing one drop in each eye twice daily, approximately 12 hours apart. Ask your eye doctor whether CEQUA may be appropriate for you.
Learn more, book a virtual appointment or find an eye doctor at
Learn More: https://doctoreyehealth.com/CEQUA-Home
Find a Doctor: https://doctoreyehealth.com/CEQUA-Find-a-Doctor
Please refer to the official prescribing information for complete safety and usage information.
Resources Mentioned
Website: Doctor Eye Health https://www.doctoreyehealth.com/
YouTube: Doctor Eye Health https://www.youtube.com/@DoctorEyeHealth
Instagram: @doctoreyehealth https://www.instagram.com/doctoreyehealth
TikTok: Doctor Eye Health https://www.tiktok.com/@doctoreyehealth
Facebook: Doctor Eye Health https://www.facebook.com/DoctorEyeHealth
LinkedIn: Dr. Joseph Allen https://www.linkedin.com/
⚠️ DISCLAIMER: This video is for educational purposes only and does not replace professional medical advice, diagnosis, or treatment. Always consult your eye doctor or healthcare professional regarding concerns about your vision or eye health.

meibomian gland dysfunction, MGD, meibomian gland dysfunction treatment, dry eye, dry eye treatment, evaporative dry eye, blocked oil glands, meibomian glands, dry eye syndrome, blurry vision, watery eyes, eye fatigue, warm compress for dry eyes, eyelid hygiene, eyelid massage, omega 3 for dry eyes, IPL for dry eye, intense pulsed light therapy, red light therapy, meibomian gland expression, meibomian gland probing, Demodex blepharitis, ocular rosacea, blepharitis treatment, tear film, tear breakup time, preservative free eye drops, CEQUA, Dr. Joseph Allen, Doctor Eye Health Podcast

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 dysfunction, incomplete blinking, allergies, autoimmune disease, seborrheic dermatitis, skin conditions, and lifestyle factors can contribute to persistent dry eye symptoms.
The conversation also explores advanced and emerging dry eye treatments, including intense pulsed light therapy (IPL), radiofrequency, platelet-rich plasma (PRP), autologous serum tears, plasma technology, nerve regeneration therapies, and promising medications that could improve future treatment outcomes.
What You'll Learn
✅ Why many dry eye treatments fail to provide lasting relief
✅ What causes meibomian gland dysfunction and whether damaged glands can recover
✅ How inflammation, corneal nerves, Demodex mites, skin conditions, and the eyelid microbiome affect dry eye disease
✅ How IPL, radiofrequency, PRP, autologous serum tears, and emerging therapies may support dry eye treatment
Visit https://www.doctoreyehealth.com for trusted eye health resources, educational articles, and more information from Dr. Joseph Allen.
Timestamps
(00:00) Why most dry eye treatments fail
(04:00) Why dry eye disease is difficult to treat
(08:25) Understanding meibomian gland dysfunction
(17:45) Can damaged meibomian glands recover?
(21:40) IPL, radiofrequency, and new treatment technologies
(25:40) How inflammation damages the ocular surface
(32:20) Corneal nerves and chronic dry eye
(37:15) PRP vs. autologous serum tears
(41:00) Eyelid hygiene, the microbiome, and doxycycline
(50:00) Makeup, skincare, retinol, and dry eye
(55:00) The future of dry eye treatment

Key Takeaways
💎 Dry eye disease is multifactorial, meaning several underlying causes may need to be identified and addressed.
💎 Meibomian gland dysfunction can involve inflammation, bacteria, skin disease, incomplete blinking, and blocked oil glands.
💎 Healthy corneal nerves, proper blinking, and a balanced eyelid microbiome help maintain a stable tear film.
💎 Dry eye care is becoming more targeted and personalized, with emerging treatments focused on restoring gland function, nerve health, and the ocular surface.

Want to learn more about dry eye? Check out these helpful videos:
Omega 3 Fish Oil for Dry Eyes: How Much to Take, How to Test & Best Sources https://youtube.com/live/CswvVUpP4nM
What Causes Dry Eyes? Dry Eye Syndrome Explained https://youtu.be/SKqfXe4kPOU
Red Light Therapy for Dry Eyes https://youtu.be/eTB6RGYQbTI
When Dry Eye Turns Into Chronic Eye Pain - Expert Discussion https://youtu.be/BjhbnG6kN_s

About Dr. Laura Periman
Dr. Laura Periman is a board-certified ophthalmologist and internationally recognized dry eye specialist. She is known for treating complex ocular surface disease and treatment-resistant dry eye while helping advance innovative therapies through research and clinical practice. Her work focuses on restoring ocular surface health by addressing inflammation, meibomian gland dysfunction, nerve health, and the eyelid microbiome.
LinkedIn: https://www.linkedin.com/in/lauraperiman/
Website: https://dryeyemaster.com/about-laura-periman/
Link to Dr Periman's ProBiotic Green Smoothie Recipe! http://www.doctoreyehealth.com/green-smoothie
Resources Mentioned
Website: Doctor Eye Health https://www.doctoreyehealth.com/
YouTube: Doctor Eye Health https://www.youtube.com/@DoctorEyeHealth
Instagram: @doctoreyehealth https://www.instagram.com/doctoreyehealth
TikTok: Doctor Eye Health https://www.tiktok.com/@doctoreyehealth
Facebook: Doctor Eye Health https://www.facebook.com/DoctorEyeHealth
LinkedIn: Dr. Joseph Allen https://www.linkedin.com/
⚠️ DISCLAIMER: This video is for educational purposes only and does not replace professional medical advice, diagnosis, or treatment. Always consult your eye doctor or healthcare professional regarding concerns about your vision or eye health.

dry eye disease, chronic dry eye, dry eye treatment, meibomian gland dysfunction, MGD, ocular surface disease, evaporative dry eye, aqueous deficient dry eye, inflammation, corneal nerves, platelet rich plasma, PRP eye drops, IPL dry eye treatment, radiofrequency dry eye, eyelid hygiene, Demodex, eyelid microbiome, rosacea, autoimmune dry eye, Sjögren syndrome, incomplete blinking, eye irritation, burning eyes, watery eyes, blurry vision, artificial tears, ophthalmology, optometry, Dr Laura Periman, Doctor Eye Health Podcast