Your eye is a wondrous -- but delicate -- organ made of many parts that are critical to preserving vision. Bumps on the ocular surface can distort visual images and interfere with your ability to focus clearly. Some eye bumps cause pain and...
Ocular herpes is caused by an infection with the type 1 herpes simplex virus. The condition tends to recur over time and can range from a sore on the eyelid to scarring of the cornea and possibly loss of vision. There are three main types of...
Dry eyes can have many causes, from a decrease in the production of the aqueous fluid that provides moisture to the eye, to suppression of the blinking reflex. Eyelid inflammation, environmental factors or surface injury to cornea can also cause...
Eye diseases may cause minor damage to the eye, but some conditions result in serious vision loss. Doctors determine treatments for eye disease based on the disease itself, since some respond best to certain methods. Knowing about the options may...
The shingles virus, or herpes zoster, is the same virus that causes chickenpox--HV3. The virus that attacks the skin and the nerves can spread from the eye to the face, leading to complications. Shingles can occur at any age and in people with...
Chemical burns--caused by either acid or alkali substances--can cause pain, light sensitivity, reduced vision and damage to the eyelids. According to the "Handbook of Ocular Disease Management," burns caused by an alkali, such as drain cleaner,...
An eye, or corneal, ulcer is an area of infection or inflammation in the cornea. These can be caused by bacteria, viruses, parasitic organisms, fungi or the organism Acanthamoeba. Eye ulcers present with pain, eye redness and decreased vision. If...
People who experience vision problems, such as blurred vision, halos around lights and blind spots, should always consult with a medical professional, as these problems could be symptoms of eye disease, according to MedlinePlus. Optometrists...
The cornea makes up the front window of the eye, and helps focus light for good, clear vision. The cornea also has the responsibility of protecting the eye from outside particles. All five layers of the cornea receive nutrients from the tear film...
The cornea is a clear dome that protects the surface of the eye. Damage to the cornea can seriously affect vision. In severe cases, damage to the cornea is so severe that corneal transplant becomes necessary. Some, but not all, of the disease...
Regular eye exams help maintain good vision and keep eyes healthy. Most eye care providers perform vision screenings and general eye care. However, if a person has a medical eye condition or a family history of eye disease, it is important to...
Shingles, also known as herpes zoster, results from the reactivation of the chicken pox virus. The condition attacks nerves, usually on one side of the body, and may move into the eye. If someone with shingles does not seek treatment, he may have...
Your eyes are an essential component of your senses and play an important role in your daily life. Although regular optometrist visits and proper maintenance are paramount in preserving your vision, acquiring certain nutrients may also be...
Allergens such as dust, pollen, pet dander and certain food products can cause allergy symptoms to develop in your chest, nose or eyes, or on your skin. If you develop eye allergy symptoms, your doctor may recommend the use of over-the-counter or...
Tea tree oil comes from the leaves of the tea tree, scientifically known as the Melaleuca alternifolia, a tree native to Australia. Some people use tea tree oil on their skin as a method of treating bacterial and fungal infections, or they add the...
Routine eye exams help doctors monitor eye conditions, and when the doctor feels a surgical procedure may improve health or vision in the eye, he will discuss these options with the patient. In some instances, the patient does not have to make an...
The shape of the eye determines how well the eye sees. Light shines through the cornea, the front part of the eye and, ideally, should land on the retina. This gives perfect vision without the need for an eye glass prescription. If the eye or...
Eye lesions may gradually increase in size, though it may take the lesions a number of years before they reach a noticeable size. Most lesions cause surface irritation, resulting in constant redness and discomfort. People with such symptoms should...
Graves' disease is a common form of hyperthyroidism in which the immune system attacks the thyroid gland, causing it to overproduce the hormone thyroxin. While excess thyroid hormone can cause physical and emotional changes throughout the body,...
Acanthamoeba is a microscopic organism that has been found in everywhere in the environment. It has been found in hot tubs, swimming pools and tap water; these places are the most common places that the eye would come in contact with the organism....
Corneal lacerations are a type of eye injury that occur when your cornea becomes scratched. Although it’s possible to receive a corneal laceration while swimming, most cases occur as a result of contact with dry foreign objects such as...
Droopy eyelids can interfere with vision as well as create cosmetic concerns. It is a normal symptom of aging, to some extent. However, according to Virginia E. Bishop, contributor to "Foundations of Low Vision," when eyelids occlude the pupil,...
If you've noticed a bump on your eye, take a moment to think about when it first appeared. Your eye doctor will need to know how long you've had the bump, what kinds of daily activities you perform, and whether you did anything out of the ordinary...
Ocular herpes is a viral infection that stems from the same virus that causes cold sores. This condition typically occurs in only one eye and involves the cornea, the clear outer covering of the front of your eye. Symptoms may include redness,...
Ocular herpes, or herpes infection of the eye, is usually caused by herpes simplex I, a common virus that produces sores on the mouth. It may also be caused by the varicella-zoster virus, the virus that causes chickenpox. Ocular herpes and herpes...
Systemic lupus erythematosus is a chronic autoimmune disorder that occurs predominantly in young women. SLE causes inflammation and damage in different areas of the body and is a disease of flare-ups and remissions. Treatment typically involves...
The eye is comprised of a complex system of layers that work together for producing vision. The National Eye Institute explains that the cornea is the outermost layer of the eye, which serves to protect the rest of the eye from external irritants...
The immune system works to protect the body from foreign invaders, such as bacteria and viruses. Sometimes, however, the cells of the immune system fail to differentiate between invaders and normal, healthy cells. Autoimmune diseases are those...
The cornea is made of multiple layers of cells. These layers must remain clear for optimal vision; if any becomes cloudy for any reason--disease, trauma or infection--vision becomes blurry. Corneal transplantation is an option if the problems with...
