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?

Wondering if Ozempic or Wegovy could harm your eyes? The truth may surprise you. While early concerns linked GLP-1 medications to rare vision problems, new research shows they may actually lower the risk of glaucoma and protect long-term eye health. Learn the early signs of glaucoma, what symptoms to watch for, and how regular eye exams can safeguard your vision.

Flashes of light in your vision can feel unsettling—and sometimes signal serious eye conditions. This guide walks you through what happens during an eye exam for flashes, the tests involved, and why timely evaluation is key to protecting your vision.

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Flashes of light in your vision can be alarming — but are they caused by a migraine aura or a retinal problem? Learn the key differences between retinal flashes and ocular migraines, their causes, and when to seek urgent care to protect your sight.

Understanding a Common Yet Surprising Part of Getting Older As we age, our bodies go through countless changes—some expected, some less...

Understanding the Sudden Bursts of Light in Your Vision Have you ever seen sudden streaks, sparks, or flashes of light—like lightning...

Pituitary lesion vision loss occurs when a growth near the pituitary gland presses on the optic chiasm, disrupting the transmission of visual information to the brain. Early symptoms like peripheral vision loss, blurred vision, headaches, or hormonal changes can be subtle but may signal a serious underlying condition. At South Bay Retina, Dr. Keshav Narain uses advanced imaging, visual field testing, and close collaboration with specialists to detect and treat these issues be

When the “powerhouses” of your cells fail, your eyes can be among the first to suffer. Mitochondrial diseases disrupt the body’s ability to produce energy, putting the retina and optic nerve at risk. At South Bay Retina, Dr. Keshav Narain uses advanced diagnostics and personalized care to detect problems early, slow vision loss, and help patients protect their sight.