Anisocoria

Anisocoria: Unequal Pupil Sizes

Anisocoria is a condition where the two pupils are unequal in size and may not respond normally to light. In common cases, anisocoria is usually benign and does not need serious concern. However, if your anisocoria happens all of a sudden, this can be a symptom of a serious condition....
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Blocked Tear Duct

Blocked Tear Duct

A blocked tear duct prevents tears from draining normally which causes a watery and irritated eye. This condition is common in newborns and usually gets better without medical intervention. However, a blocked tear duct in adults is caused by injury, infection, or tumor. Fortunately, a blocked tear duct is almost...
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Cat Eye Syndrome

Cat Eye Syndrome Explained

Cat eye syndrome affects several parts of the body which involves the heart, ears, kidneys, and eyes. This is caused by a genetic problem which is more specifically an abnormality in the chromosome. This syndrome causes a hole in the iris to appear and make a person’s eye look similar...
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Chalazion Bump on Eyelid Causes & Treatment

Chalazion: Bump on Eyelid Causes & Treatment

A chalazion is a painless bump on the upper or lower eyelid. A chalazion results from healed internal styes that are no longer infectious. These cyst-like eyelid bumps develop around an oil gland in the eyelid that causes red and swollen eyelids. A chalazion consists of pus and blocked fatty...
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Corneal Abrasions

Corneal Abrasions, Most Common Eye Injury: Causes, Symptoms, Diagnosis, Duration, and Treatment

Corneal abrasions are the most frequent eye injury that doctors encounter with their patients. The cornea is the clear, curved structure on the surface of our eyes. It is a delicate dome-shaped “window” of our eyes. Any scratch or scrape on the cornea is termed as a corneal abrasion. Corneal...
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Corneal Ulcer

Corneal Ulcer (Keratitis)

A corneal ulcer is a painful red eye accompanied by mild to heavy eye discharge and diminished vision. This is caused by an infection to the cornea with abscess. Corneal Ulcer Causes The common cause of corneal ulcers is bacterial infection that affects the cornea after an eye injury or...
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Difference Between Allergies and Pink Eye

Difference Between Allergies and Pink Eye

Red and itchy eyes require immediate remedy or else, it can hinder productivity. These two symptoms may mean you have either pink eyes or just allergies. This can be confusing when you are trying to find the proper remedy. Since both have similar symptoms like discomfort, discharge, and redness, figuring...
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different types of eye floaters

Different Types of Eye Floaters

Not all eye floaters are the same because they can look different to different people. There are different types of eye floaters which vary in shapes and shades. Eye floaters are said to be “spots” by many people but it comes in different forms. When eye floaters appear, it does...
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Diplopia

Diplopia: Seeing Double and Ghost Images

Diplopia means double vision which creates separate or overlapping images of the same object when you are supposed to be seeing only one. The less dominant image seen through diplopia is termed as “ghost image”. Three types of diplopia include: Monocular diplopia: Double vision that persists only in one eye...
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Arcus Senilis

Does Arcus Senilis Mean High Cholesterol?

Arcus senilis is a white, gray, or blue looking ring surrounding the cornea. This is commonly seen in elderlies but can also affect people of any age. Arcus senilis is usually harmless, although it is sometimes a symptom of high cholesterol in people below 45 years old. Arcus senilis can...
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Glaucoma

Eye Condition: Glaucoma

When there is damage to the optic nerve due to the elevated pressure in the eye refers to the group of conditions called glaucoma. The danger of leaving glaucoma untreated is that it can cause blindness. If you have normal pressure inside your eyes, it is still possible to have...
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Eye Floater Types

Eye Floater Types

Eye floaters vary on people, from different shapes and shades to moving or wavy lines, to small black dots in your vision. Floaters are not a medical concern but a visual annoyance. Although a sudden increase of floaters is concerning because it could be a retinal detachment symptom and it...
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Eye Melanoma

Eye Melanoma or Ocular Melanoma

Melanoma is a form of skin cancer that affects melanocytes or the cells that produce melanin which gives color to the skin. Similar to the skin, the eyes also contain melanocytes which can, later on, develop melanoma. Eye melanoma is also known as ocular melanoma. Ocular melanoma can be difficult...
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Eyelid Dermatitis

Eyelid Dermatitis

If your eyelids always feel itchy, irritated, or swollen, it may be because of eyelid dermatitis. Atopic (allergic) contact dermatitis and irritant contact dermatitis are the two types of a very common condition called eyelid dermatitis. Symptoms Symptoms may be chronic or sudden and occasionally occur in one or both...
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Heterochromia

Heterochromia: 2 Different Eye Colors

Heterochromia is a condition where a person has two different eye colors. This means that each eye is a different color – for instance, one eye is brown and the other eye is blue. It may also mean that there are at least two different colors in different parts of...
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Higher-Order Aberrations

Higher-Order Aberrations Explained

You may wonder what aberrations are and what it does to your eyes when your doctor says that you have it. Coma, trefoil, and spherical aberration are some of the unfamiliar names of higher-order aberrations. These can cause some struggles seeing during the night, blurring, or double vision. To some...
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How Multiple Sclerosis Cause Vision Disturbances Eye Pain and Blurry Vision

How Multiple Sclerosis Cause Vision Disturbances: Eye Pain and Blurry Vision

Multiple sclerosis is commonly associated with vision problems. Blurry vision and eye pain are some of the common manifestations of multiple sclerosis in the eyes. Multiple sclerosis is often abbreviated as MS. The symptoms of MS usually come and go without medical treatment, but severe symptoms may require a consultation...
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Identification and Treatment of Pink Eye in Babies

Identification and Treatment of Pink Eye in Babies

A common eye condition in babies where there is an inflammation in the conjunctiva is called pink eye or Conjunctivitis. Pink eyes can occur in one eye or both eyes. There are four types of conjunctivitis and are divided into contagious or non-contagious. Contagious Types of Conjunctivitis Bacterial conjunctivitis is...
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Iridocorneal Endothelial Syndrome (ICE)

Iridocorneal Endothelial Syndrome (ICE)

Iridocorneal endothelial syndrome is a rare type of glaucoma that commonly occurs only in one eye. This syndrome causes the cells on the rear area of the cornea to spread across the drainage tissue of the eyes and the iris. This leads to an increase in the eye pressure that...
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Macular Holes

Macular Holes: How They Are Formed and Repaired

It can be disturbing if the vision in one of your eyes suddenly becomes distorted and blurry. This may signify the development of a macular hole. The macula is a tiny spot in the retina of the back part of the eye. The macula contains light-sensitive cells called cones and...
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Milia

Milia on the Eyelid and How to Remove Them

Milia are small, white, or yellowish cysts that appear on your face and body including on the eyelids and under the eyes. Milia are sometimes called “milk spots” or “oil seeds” and typically occur in clusters. Milia are very prevalent in newborns which affects nearly 50% of all full-term newborn...
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Nocturnal Lagophthalmos or Sleeping With the Eyes Open

It may be odd, but did you know that there are a lot of people sleeping with their eyes open? It is surprisingly common. However, people who sleep with their eyes open are vulnerable to severe eye problems such as dry eyes, infections, and eye injury. Sleeping with the eyes...
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Nystagmus

Nystagmus: Involuntary Eye Movements

Nystagmus is an eye disorder that causes involuntary and rhythmic eye movements. The involuntary movements make it hard for a person to keep the eyes fixed and focused on an object making it difficult to do everyday tasks. Types of Nystagmus Nystagmus is comparatively rare and only affects 2-3 out...
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Ocular Hypertension: High Eye Pressure

Ocular Hypertension: High Eye Pressure

Ocular hypertension occurs when the intraocular pressure (IOP) is elevated. Untreated ocular hypertension may lead to glaucoma and blindness. Fortunately, there are people who have ocular hypertension that did not develop any damage to their vision as determined by a visual field testing and a comprehensive eye exam. How to...
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Polycoria

Polycoria | Two Pupils in One Eye

Polycoria affects the pupils and can occur in both or just one eye. It commonly starts during childhood but is often diagnosed later in life. Two types of polycoria include: True polycoria. This involves two or more separate pupils sharing one eye. Each pupil has its own normally functioning sphincter...
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Ptosis

Ptosis: Drooping Eyelids

The drooping of the upper eyelid on one or both eyes is called ptosis. This condition may barely be noticeable or could cover the entire pupil interfering with a person’s vision. Ptosis, also known as blepharoptosis could start at birth (congenital ptosis) or could later occur in life (acquired ptosis)....
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ROSAH Syndrome

ROSAH Syndrome: New genetic mutation discovery that can send a whole family blind

Professor Robyn Jamieson, a scientist and head of the Eye Genetics Unit at Westmed in Australia, discovered a very rare syndrome caused by a strange genetic mutation that can make a whole family blind. The case of Beth White’s retinal disease in 2004 from Sydney has led Professor Jamieson into...
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Sticky Eyes

Sticky Eyes: What It Is and How to Properly Manage It

Wet or crusted discharge in the eyes is common in people who have allergies or cold. This discharge can cause the eyes to feel wet, gummy, or are glued shut. This condition is commonly known as sticky eyes. Sticky eyes are caused by accumulated collection of skin cells, oil, debris,...
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Stye

Stye (Hordeolum)

A stye is a painful bump around the edge of the eyelid that closely resembles a boil or a pimple. This is a localized infection or inflammation of the edges of the eyelid involving hair follicles around the eyelashes. These are often filled with pus but will begin to disappear...
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Swollen Eyelids

Swollen Eyelids? Causes and Treatments

A swollen eyelid happens when excess fluid (edema) builds up in the tissues around the eyes. This causes inflammation and makes the eyes look swollen. Swollen eyes affect both upper and lower eyelids with or without associated pain. From eye infections, injuries, trauma, or allergies, there are varying causes of...
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Optic Neuritis

Symptoms, Causes, Treatments of Optic Neuritis

There is a connection between the eye and brain which is the optic nerve, it processes and transmits the visual information. If inflammation occurs in the optic nerve it is called optic neuritis. During inflammation, it damages the protective sheath that surrounds the nerve or known as the myelin or...
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The Causes and Treatment of Black Eye

The Causes and Treatment of Black Eye

A black eye is also known as a shiner which appears when an injury near the eye occurs. There is a broken blood vessel under the skin which causes a bruise or discoloration to appear. The usual cause of this is blunt force trauma. Swelling is present when you have...
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The Causes and Treatment of Eye Floaters 1

The Causes and Treatment of Eye Floaters

The tiny spots that appear in your vision are called eye floaters. It is a common occurrence and does not usually cause alarm. In the vitreous part of the eye that gives shape to the eye is where the floaters develop. That is why floaters are also known as vitreous...
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Treatment for Diabetic Retinopathy

Treatment for Diabetic Retinopathy

Diabetic retinopathy is known to affect your eyes with different eye conditions. In the early stages of diabetic retinopathy, treatment may not be needed because eyesight is normal. With the help of treatment, it can help prevent and delay eye damage from diabetes. Laser treatment, vitrectomy surgery, and medication are...
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Tunnel Vision

Tunnel Vision: How It Feels to Lose Peripheral Vision

Tunnel vision means loss of peripheral vision. This means that you do not have a normal wide-angle field of vision despite the central vision being fine. Moderate to severe cases of peripheral vision problems may seem like looking through a narrow tube where its name “tunnel vision’ is derived from....
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Uveitis

Uveitis: Eye Inflammation

Uveitis is the swelling of the middle layer of the eye known as the uvea. This layer consists of the iris, choroid, and ciliary body of the eye. Uveitis can be caused by various factors such as eye injury, toxic chemical exposure, or inflammatory diseases. Uveitis may be classified in...
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Vision Problems of Premature Babies

Vision Problems of Premature Babies May Now Be Avoided by Light Therapy

Researchers at Cincinnati Children’s Hospital Medical Center have discovered that light therapy may help premature babies avoid vision problems. They have discovered a light-dependent molecular pathway that regulates how blood vessels develop in the eye. Further studies imply that light therapy might help premature babies fight vision problems whose eyes...
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Yellow Eyes

What Causes Yellow Eyes?

The sclera of the eyes should always look white. If there is any change in color such as becoming red or yellow, it could be a sign of an underlying condition. Conjunctival or scleral icterus is a type of eye discoloration which turns the sclera to yellow. Yellow eyes are...
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What Does Red Spot on the Eye Mean?

You could be unaware until someone points out you have a red spot in the eye. Here is what it says about your health. It could be disturbing to see a red spot right on your eye. However, the good news is it’s rarely a medical emergency. The usual cause...
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Hyphema

What is a Hyphema?

Hyphema is the collection of blood in the anterior chamber of the eye, the space between the cornea and the iris, caused by bleeding or a broken blood vessel in the eye. The number of accumulated blood grades the severity of the hyphema: Grade 0 (microhyphema): Collection of blood is...
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What Is Acanthamoeba Keratitis Infection?

Acanthamoeba is one of the most microscopic organisms in the environment, but it rarely causes any infection. When infection does occur, though, it can be extremely serious and can endanger your vision. It is a parasite usually found on soil and water such as tap water, swimming pools, hot tubs,...
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Legally Blind

What is Considered “Legally Blind”?

“Legally blind” pertains to being visually impaired by the law when eyeglasses or contact lenses cannot correct your vision beyond particular standards. To be considered legally blind, one must have a 20/200 visual acuity or worse in your better eye with corrective glasses or contact lenses on it. Legal blindness...
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Dacryocystitis

What Is Dacryocystitis?

Dacryocystitis is the medical term used for inflammation of lacrimal sac. The lubrication comes from the tears that is produced by lacrimal glands. Nasolacrimal duct obstruction (NLDO) is the main cause of dacryocystitis. There are two categories which are duration and onset. The duration can be acute or chronic. It...
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Diabetic Retinopathy and Diabetic Macular Edema

What is Diabetic Retinopathy and Diabetic Macular Edema?

Diabetic retinopathy is retinal damage caused by diabetes which could lead to blindness. This can be prevented if detected ahead of time, proper diabetic treatment, and regular eye checkups by your eye doctor. Abnormal high levels of blood sugar caused by uncontrolled diabetes accumulate in blood vessels leading to blood...
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What is Dry Eyes Syndrome

What is Dry Eyes Syndrome? Causes, Symptoms, Treatment, and Prevention

Dry eyes occur when there are inadequate tears to lubricate the eyes. This condition is medically termed as keratoconjunctivitis sicca (KCS) or more commonly known as dry eye syndrome. Overview Dry eye syndrome is a common condition that affects almost 37% of the people. It may root from insufficient tear...
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Eye Herpes

What is Eye Herpes?

Eye herpes or ocular herpes is a viral eye infection caused by type 1 herpes simplex virus (HSV-1) that also causes cold sores surrounding the mouth and lips. Frequently, eye herpes affects the cornea of the eye (herpes keratitis). Eye herpes also affects the superficial cells of the cornea (epithelial...
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What is Keratoconus? | A Clear Explanation of the Rare Disease

Keratoconus is when the cornea bulges outward forming a cone shape in your eye. The cornea is the clear, dome-shaped surface of your eye that causes blurred vision and light sensitivity when deformed. Keratoconus usually occurs in both eyes but is often more severe on one eye than the other....
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Ocular Rosacea

What is Ocular Rosacea?

Ocular rosacea is associated with a common inflammatory disease that affects the skin around the face, chest, as well as the eyes. The condition may be linked with inherited and environmental factors such as excessive sun exposure. Rosacea affects more women than men. Recent studies imply that 6-18% of people...
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What is Retinal Detachment

What is Retinal Detachment?

Retinal detachment is a serious condition that can cost a person’s vision. This is a phenomenon characterized by the separation of the retina from its underlying supportive tissue and can no longer function properly. Unless the retina is reattached soon, permanent blindness may result. Retinal Detachment Symptoms If you suddenly...
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Snow Blindness

What is Snow Blindness and How You Can Prevent It

Despite being painful and having temporary vision loss, snow blindness is totally preventable. This condition is caused by overexposure to the UV rays from the sun. Photokeratitis is the medical term for snow blindness. Basically, snow blindness is a sunburned eye or more specifically, a sunburned cornea. Usually, by the...
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