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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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?

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.

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.

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.