Have you ever noticed your eyes looking red after a long day and assumed it was just fatigue? While tiredness can play a role, eye redness can actually signal a wide range of issues—from simple dryness and allergies to infections or even serious conditions like uveitis and glaucoma. In this educational breakdown from South Bay Retina, board-certified ophthalmologist Dr. Keshav Narain explains what really causes red eyes, how to tell when it’s harmless, and when it’s a sign y

Discover the truth behind the age-old claim that carrots improve your vision. While rich in vitamin A, essential for eye health and night vision, eating more carrots won’t enhance eyesight beyond normal levels. Learn how a balanced diet, proper nutrition, and regular eye exams play a crucial role in maintaining healthy vision and preventing eye diseases like macular degeneration, dry eye, and diabetic retinopathy.

Improve your eye health with three proven, science-backed habits that can protect your vision for life. Learn how proper nutrition, digital eye-strain prevention, and regular comprehensive eye exams can keep your eyes clear, comfortable, and disease-free. Discover the essential nutrients your eyes need, simple daily screen-time strategies to reduce dryness and fatigue, and why early detection is the key to preventing glaucoma, macular degeneration, and diabetic eye disease. S

Discover the incredible human eye vision process — a journey that transforms light into sight within milliseconds. From the cornea and lens that focus incoming light, to the retina and optic nerve that convert it into signals your brain understands, every blink reveals one of the body’s most sophisticated biological systems. Learn how your eyes capture color, depth, and motion, and why regular eye exams are essential to protect against conditions like glaucoma, macular degene

From the transparent cornea that focuses incoming light to the retina and optic nerve that send visual signals to your brain, every layer of your eye plays a vital role in helping you see clearly. This detailed yet accessible guide explains the anatomy of the eye — including the cornea, iris, lens, retina, and optic nerve — and how they work together to create vision. Understanding how your eyes function is key to protecting them from disease and maintaining lifelong vision

Many people believe that “normal” eye pressure means they’re safe from glaucoma—but that’s not always true. Normal-Tension Glaucoma (NTG) can damage the optic nerve even when intraocular pressure (IOP) appears normal. This often-overlooked form of glaucoma is linked to poor blood flow, vascular dysregulation, sleep apnea, and low systemic blood pressure. Because glaucoma is a multifactorial disease, early detection requires more than just pressure checks.

Normal eye pressure doesn’t always mean healthy eyes. Learn how Normal-Tension Glaucoma damages vision even with normal readings—and how to protect your sight.

Discover how to heal your vision naturally and support recovery from Central Serous Retinopathy (CSR) through lifestyle changes that reduce stress, balance hormones, and improve retinal health. Learn how managing stress, sleep, caffeine intake, and nutrition can help prevent CSR recurrence and promote long-term eye wellness. Backed by ophthalmology research and insights from South Bay Retina, this guide empowers you to protect your vision through holistic, evidence-based habi

Blurred, wavy, or dark spots in your central vision could be a sign of Central Serous Chorioretinopathy (CSR)—a retinal condition often linked to stress or steroid use. CSR occurs when fluid builds up under the retina, causing visual distortion or blurriness, usually in one eye. While some cases resolve on their own, chronic or recurrent CSR can lead to lasting vision loss if untreated. Learn how early detection, stress management, and modern imaging.

Reduce digital eye strain with expert ergonomic tips from Dr. Keshav Narain of South Bay Retina. Learn how posture and screen setup protect your vision.

Have you recently experienced sudden flashes of light after a head or eye injury? These bursts—known as photopsia—may be your eyes warning you of possible retinal damage or detachment. In this post, Dr. Keshav Narain of South Bay Retina explains how trauma can trigger eye flashes, what symptoms signal an emergency, and why prompt evaluation is critical for preventing permanent vision loss. Learn when to seek care, what to expect during an eye exam after injury, and how to pro

Have you noticed sudden flashes of light after a head or eye injury? These eye flashes—known as photopsia—can signal serious conditions like retinal tears or detachment. In this article, Dr. Keshav Narain of South Bay Retina explains how trauma can affect your retina, what symptoms require urgent care, and why timely evaluation is crucial to protect your vision. Learn the warning signs, diagnostic steps, and preventive measures to keep your eyes safe after injury.

Have you ever stayed up scrolling, only to feel wide awake long after? Blue light may be to blame. Natural blue light helps regulate our body clock, but at night, artificial sources from phones and screens suppress melatonin, delaying sleep. Dr. Keshav Narain of South Bay Retina notes this disruption can cause restless nights and next-day fatigue. Protect your rest by reducing evening screen time, using night mode, or wearing blue-light-blocking glasses.

Ever crawl into bed exhausted, only to find your mind still racing after scrolling or binge-watching? According to Dr. Keshav Narain of South Bay Retina, it’s not just blue light—digital content itself overstimulates the brain, keeping stress hormones and reward pathways active when you should be winding down. This disrupts sleep quality, fuels eye strain, and leaves you overtired. Simple habits like digital curfews and bedtime rituals can help your brain reset for rest.

Late-night screen time may feel harmless, but it disrupts melatonin, shortens deep sleep, and strains your eyes. Dr. Keshav Narain of South Bay Retina explains how blue light and digital stimulation keep you awake—and why a screen-free night routine can restore sleep, boost health, and protect your vision.

Thyroid Eye Disease (TED) is often recognized by the classic “stare,” but it’s far more than a cosmetic concern. TED is an autoimmune condition where the immune system attacks tissues around the eyes, causing swelling, irritation, and sometimes double vision. In severe cases, it can even threaten sight. For patients, the impact goes well beyond appearance—affecting comfort, vision, and quality of life every day.

Bedtime battles with screens are something every parent knows. But those late-night scrolls and games can quietly disrupt kids’ sleep and strain their eyes.

Digital eye strain is a common side effect of long hours on screens, causing dryness, fatigue, and blurred vision. The 20-20-20 rule—taking a 20-second break every 20 minutes to look 20 feet away—offers a simple, effective way to relax your eyes and prevent discomfort.

San Jose | Eye flashes duration explained—learn how long flashes last, common causes, and when they may signal a retinal emergency.

San Jose | Nicotinamide, a form of vitamin B3, is emerging as a promising supplement for glaucoma. While it doesn’t lower eye pressure, research suggests it may protect the optic nerve by boosting cellular energy and supporting retinal ganglion cells. Early studies show safety and potential benefits, but larger clinical trials are still underway. Could this be the future of glaucoma care?