What does an OCT scan really show about your eye health? Optical Coherence Tomography (OCT) is a fast, non-invasive imaging test that reveals microscopic layers of the retina and optic nerve—often detecting eye disease before symptoms appear. Learn how OCT helps diagnose, monitor, and guide treatment for conditions like macular degeneration, diabetic eye disease, and glaucoma.

Clear vision doesn’t always mean healthy eyes. Learn how often you should get a retina exam, who needs more frequent screening, and how early detection of silent eye diseases like diabetic retinopathy and macular degeneration can protect your vision long-term.

Blepharitis is a common yet often frustrating cause of red, irritated, burning eyelids and dry, gritty eyes. Learn what causes blepharitis, how blocked oil glands affect tear stability, and which daily habits and treatments can significantly reduce flare-ups and improve long-term eye comfort.

Sudden vision loss in one eye can be a sign of an eye stroke. Learn the critical differences between Central Retinal Artery Occlusion (CRAO) and Branch Retinal Vein Occlusion (BRVO), why one is a medical emergency, and how early diagnosis can protect both vision and overall health.

Glaucoma can quietly damage vision long before symptoms appear. Learn how early detection, advanced imaging, and personalized care can help preserve sight and transform glaucoma from a silent threat into a manageable condition.

Have you ever noticed faint, drifting shadows — like cobwebs, threads, or tiny specks — in your vision, especially against bright skies or plain walls? You might think it’s double vision, but in most cases, these “double shadows” are actually floaters or subtle ghost images inside the eye. Floaters are caused by tiny clumps or debris in the vitreous — the jelly-like substance filling your eye — casting shadows on the retina.

Eye pain, pressure, double vision, or bulging eyes may signal Thyroid Eye Disease (TED), a serious autoimmune condition often linked to thyroid problems.

Sudden contact lens discomfort is often caused by changes in the ocular surface rather than the lenses themselves. Learn how dry eye, eyelid exposure, and thyroid eye disease contribute to irritation and reduced lens tolerance.

Subtle eye changes like puffy eyelids, dry eyes, or a slightly altered gaze may be early warning signs of Thyroid Eye Disease (TED). Often overlooked or mistaken for fatigue or allergies, these quiet symptoms can signal an autoimmune condition that affects the tissues around the eyes. Early detection and timely care are essential to prevent progression and protect long-term vision.

If you have Thyroid Eye Disease (TED), you may notice more irritation, swelling, or dryness during cold or flu season. TED is an autoimmune condition where your immune system attacks tissues around the eyes, causing inflammation, bulging, and surface symptoms like dryness or grittiness. Even after the active phase of TED seems over, flares can happen. Viral infections trigger immune responses that can inflame the ocular surface, destabilize your tear film, and worsen dryness

Morning eye swelling can be caused by common allergies or a more serious condition called thyroid eye disease (TED). While allergies often improve during the day, TED may persist and affect vision. Learn the differences, warning signs, and steps for early detection.

Early vision changes are easy to ignore, but they may be warning signs of underlying retinal disease. Your retina—the delicate, light-sensitive tissue responsible for forming the images you see—can develop silent problems long before symptoms appear. In this educational guide, Dr. Keshav Narain, board-certified ophthalmologist and founder of South Bay Retina, explains why early detection is essential and how conditions like diabetic retinopathy, age-related macular degenerati

Many people worry their cataract has “come back” after surgery, but cataracts don’t actually return. Instead, a common condition called posterior capsule opacification (PCO) can cause cloudy or blurry vision months or years later. This “secondary cataract” occurs when cells on the lens capsule become hazy—but the good news is it’s easily treatable with a quick, painless YAG laser procedure. Learn why vision can blur again after cataract surgery and how PCO is safely corrected

Diabetes affects far more than blood sugar—it can silently damage your vision. Diabetic retinopathy is one of the leading causes of preventable blindness, often progressing with no early symptoms. Chronically high blood sugar weakens the tiny blood vessels in the retina, leading to leakage, swelling, blurred vision, and in advanced stages, bleeding or retinal detachment. Early detection through regular retinal exams, OCT imaging, and timely treatments like laser therapy or an

Eye specialists are seeing a surge in eye problems among young adults due to digital strain, myopia progression, and environmental stressors. Recognizing these early changes and seeking regular eye exams can significantly reduce the risk of irreversible vision loss. | South Bay Retina, San Jose, Gilroy

Improve your eye comfort and vision clarity with proper care. This image highlights the importance of using eye drops correctly and maintaining clean, well-fitted eyeglasses to support overall eye health.

Many people worry that wearing glasses will make their eyes weaker, but this is a common myth. Dr. Keshav Narain, board-certified ophthalmologist and founder of South Bay Retina, explains how glasses actually correct refractive errors like myopia, hyperopia, and astigmatism — improving vision, not harming it. Learn why your prescription may change over time, how to protect your eye health, and why glasses are a tool for clearer vision, not a cause of eye weakness. | South Bay

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