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.

Eales Disease: A Rare Retinal Vasculitis Causing Vision Loss Imagine being in your twenties or thirties—healthy, active, and...

Introduction: For centuries, new scientific discoveries have challenged our understanding of the world, much like Galileo's heliocentric...

IIH, formerly called “pseudotumor cerebri,” is a neurological condition marked by elevated pressure inside the skull without an identifiable cause. This pressure affects the optic nerve, potentially leading to vision loss if not treated promptly.

Central serous chorioretinopathy (CSR) is a unique and increasingly common eye condition that primarily affects the macula, the central...

Constant screen time doesn’t just tire your eyes—it may also disrupt your sleep. Learn how digital eye strain affects rest and what you can do to fix it.

Traditional glaucoma diagnosis often comes too late. Many cases occur with normal eye pressure, making them easy to miss. Now, advanced tests like VEP and ERG can detect early optic nerve dysfunction—before permanent damage sets in. This shift marks a new era in eye care: from reacting to damage to preventing it altogether.

Light is essential to human health, but modern exposure to artificial blue light—from screens and LEDs—can disrupt sleep, strain the eyes, and affect long-term wellness. This blog explores how blue light influences our circadian rhythms, eye health, and overall well-being, and offers practical, evidence-based tips to reduce its negative impact.

In Optic Nerve and Glaucoma: Time for a Paradigm Shift, Dr. Keshav Narain challenges the long-held belief that intraocular pressure (IOP) is the sole culprit in glaucoma. Drawing from decades of clinical insight and emerging technologies like electrophysiology and microperimetry, this piece highlights a critical evolution in how we diagnose and manage the disease. With tools like Visually Evoked Potentials (VEP) and Selective Laser Trabeculoplasty (SLT), clinicians are now fo

If you’re dealing with red, irritated eyelids, crusting on your lashes, or that persistent gritty sensation in your eyes, you might be experiencing blepharitis—and microscopic mites could be the cause. In this blog and podcast, Dr. Keshav Narain explores the role of Demodex in this common eye condition, how it affects your eyelids, and what you can do to manage it. Learn the science behind the symptoms and discover effective treatment options to get lasting relief.

Illustration of the human eye showing the retina, optic nerve, and macula, with highlighted areas of retinal ganglion cell loss in glaucoma and photoreceptor degeneration in macular degeneration. Arrows indicate neuroprotective strategies like neurotrophic factors, medications, and electrical stimulation targeting these retinal layers.

Can eye supplements really protect your vision, or is a healthy diet more effective? In this post, Dr. Keshav Narain breaks down the findings from the landmark AREDS1 and AREDS2 studies—explaining when supplements help, when they don’t, and why leafy greens might be your best defense against macular degeneration.

In this third episode of our podcast series on Idiopathic Intracranial Hypertension (IIH), we delve into one of the most important aspects of managing the condition: weight management. IIH is a complex neurological disorder characterized by elevated pressure around the brain, often causing headaches, visual disturbances, and other symptoms. Despite its name, the condition isn’t truly "idiopathic" anymore — emerging research is shedding light on the underlying mechanisms, par

Selective Laser Trabeculoplasty (SLT) was first developed in the late 1990s by Dr. Mark Latina and Dr. Park as a novel approach to lowering eye pressure in glaucoma patients. Originally introduced as a second-line treatment to eye drops, SLT has evolved into a preferred first-line therapy for many types of open-angle glaucoma.

This podcast introduces listeners to how doctors and scientists use advanced tests to check how well the retina and optic nerve are...

This podcast describes the use of healthy donated placentally derived amniotic membrane to improve chronic dry eye.

This brief podcast discusses thyroid eye disease and its treatment

Living with Thyroid Eye Disease (TED) can often feel like navigating a labyrinth without a map.