Showing posts with label Eye Diseases. Show all posts
Showing posts with label Eye Diseases. Show all posts

Friday, August 27, 2010

Iritis Cause in Our Eyes

Definition
Uveitis (iritis) refers directly to the eye inflammation of the middle layer, called "Uvea" but in common usage may refer to any inflammatory process involving the eye.
 
It is estimated that uveitis accounts for about 10% of cases of blindness in the United States. Uveitis requires a thorough examination by an ophthalmologist.
 
Types
 
Uveitis is usually divided anatomically front, intermediate forms and back panuveitic.
  • Anywhere from two thirds to 90% of cases of uveitis are location (anterior uveitis), often called iritis - or inflammation of the iris and anterior chamber. This condition can occur in one episode and disappear with proper treatment or may be recurrent or chronic nature. Symptoms of a red eye, injected conjunctiva, pain and visual impairment. Symptoms include increased ciliary vessels, the presence of cells and flare in the anterior chamber and corneal institutions ("KP") on the rear surface of the cornea.
  • Intermediate uveitis consists of vitritis - inflammatory cells in the vitreous cavity, sometimes with snowbanking or inflammatory material deposition in the pars plana.
  • Posterior uveitis is an inflammation of the retina and choroid.
  • Pan-uveitis is an inflammation of all layers of Uvea.

Symptoms
Depending on the part of the eye is inflammed in uveitis various combinations of these symptoms may be present.
  • Reddening
  • Tenderness
  • Floating
  • Blurred vision
  • Pain
These symptoms can appear suddenly and the pain can not occur. The symptoms described above do not necessarily mean that you have uveitis. However, in cases where one or more of these symptoms, contact your doctor for a thorough eye examination.
 
Treatment
Treatment may include steroid eyedrops, injections or tablets, eye drops, and to expand the pupil and reduce pain. More severe cases of uveitis may even require treatment with chemotherapeutic agents to suppress the immune system.
 

Monday, August 16, 2010

Allergic Conjunctivitis in The Eye

The most common type of ocular allergy is seasonal and perennial (year round) allergic conjunctivitis. Seasonal allergic conjunctivitis (hay fever conjunctivitis) is the representative of the most common type in most cases of allergic conjunctivitis. As its name suggests, is linked to specific pollen spores at certain times of the year. Symptoms typically include red, itchy and watery eyes. People suffering from hay fever and other seasonal allergies also symptoms involving the nose and throat.

Perennial allergic conjunctivitis is an allergic disease throughout the year. These allergic reactions are often associated with hair, dust and other allergens that are present in the environment throughout the year. The symptoms are similar to seasonal allergic conjunctivitis: But does not seem to be milder.

Seasonal allergic conjunctivitis generally occurs in the spring months (due to grass pollen), and the late summer months (due to ragweed pollen). Itching is the predominant symptom of the diagnosis of seasonal allergic conjunctivitis, and tearing / discharge, burning and redness.



Unfortunately, there is no known treatment for seasonal allergic conjunctivitis, unless you can find a way to completely avoid coming into contact with allergens.

What treatments are available?

Relief from seasonal allergic conjunctivitis is in many respects. Desensitization, the desensitization process may be useful for some people in reducing symptoms and the need for other drugs.

There are also various topical and oral medications are available in local pharmacies and drug stores and pharmacies. In particularly serious cases, prescription drugs are available different.

Friday, August 13, 2010

Cataract Surgery, The Solution To Your Suffering

Those who expect to return to cataract vision of youth, avoiding vague platitudes, they have become accustomed. About 90 percent of cases of cataract surgery, this will be true to a point. While cataract is removed and the vision of patients will be much better, do not automatically provide you with excellent vision. In some cases, there were no complications, including blurred vision, double vision, blurred vision after cataract surgery. Fortunately, these complications in less than 10 percent of all cases of cataract surgery, while leaving normal cataract surgery in one of the most successful and common surgical procedure performed in the United States.

The human eye, the lens is located in the internal structure of the eye itself. The natural crystalline lens to help focus light and images, which allows us to see things quickly. With age, these lenses can begin to rain, which creates problems of vision, including vision, blurred and indistinct. cataract surgery to remove the cloudy lens and replaces them with new, clear lens, which eliminates the problems of vision, which develop in association with cataract. There are some complications that can develop, resulting in less than a star performance from new parts of the eye. Some vision problems after cataract surgery, and how it can be improved.

Blurred Vision
Some patients may develop impaired vision after cataract surgery, which acts in conflict with the same procedure. Development of cataract was recorded in the previous cases, and the development of these differ slightly from the cataract on the lens. In these cases the goal is not low, but the scar tissue that develops in the tissues around the new lens can cause blurred vision or blurred after surgery. It may develop immediately after surgery or years after surgery was performed. This type of cataract can be treated by laser, giving to the person who was after the surgery.

Blurred vision can also occur in the healing process. Remember that the eye not only to experience trauma, vision and development issues immediately after the injury is usually not a problem.

Double Vision
Several patients reported diplopia immediately after cataract surgery, which is a possible side effect of the operation. When the lens is removed old and then replaced by a new target, the eye needs time to completely change and heal. Meanwhile, the lenses can be a bit, causing a double image through the development of normal vision. It will improve in most cases, but additional procedures may be necessary to completely stabilize a person's vision. Double vision may require an extra block or a patch, which helps keep the lens in place is more natural.

Sensitivity to light and color
They are considered normal in most cases. Remember the old cloudy lens has been removed, is replaced by a new clear lens. This means that your eye is to allow more light to pass him, they are accustomed to give way to the sensitivity of the time. Colors can also appear to be more clear and bright, because they are not blocked by the lens low. With each of these cases, please report it to the doctor for cataract, but it will become increasingly familiar with the new vision in time. GPs will be able to assess whether the newly discovered sensitivity is temporary or permanent. In the case of solids, there are procedures that exist to help solve the problem.

Each case there is no mention of the doctor must report them immediately. Expand fluctuations of view, what is normal, your doctor will tell you what to expect. As you will try a new vision after cataract surgery, you can report problems at follow-up study, which is usually provided within 24 hours after surgery.

Eyes Of The World Knows As Eyeglasses


Lens
Located just behind the opening, the goal is one of the factors that determine how the eye focuses, and is responsible for the development of the eye to nearby objects. As we age, the lens becomes thicker and less flexible, causing a steady decline in focusing ability of the eye known as presbyopia. The lens can develop cataracts as a result of life or injury, or may be present at birth.

Iris
This is a ring-shaped eye color, and is responsible for controlling the amount of light entering the eye. In the light, the iris constricts to make a hole in the iris, pupil, smaller, to reduce the amount of light entering the eye. In the dark, the iris expands, increasing the size of the pupil and allow light into the eye.

Cornea
This is a transparent dome over the iris and an average of only 1 / 2 mm thick. The cornea is one of the factors that determine how the eye is focused. Contact lenses are worn on the cornea and is also a laser refractive surgery, where it is made.

Student
It is a round hole in the center of the iris and the size of the evolution of different lighting conditions. The student is usually black, but if the eye is on the middle, as if the flash fires, the color will be visible to the eye and the pupil appears red.

Water
This fluid fills the space between the cornea and lens, and always produced and constantly dehydrated. The quantities of water in the eye determines the pressure in the eye, which varies at different times and different days. If the pressure in the eye is too high to tolerate eye tissue, glaucoma may develop.

Conjunctiva
It is a thin layer of tissue that covers the sclera transparent white of the eye. Conjunctiva contains many blood vessels that fill with blood and expand, if the eye is irritated, what the eye looks red.

Pupil
It is hard white outer covering of the eye, which gives the eye its shape and strength to resist damage.

Vitreous
The gelatinous substance fills the space between the lens and retina. They often contain glass fibers or clumps, which are considered as black or transparent forms in a change of vision, called floaters. It is normal to notice an increase in swimming time. vitreous humor is contained in a capsule that is attached to the retina in several respects. At some point in life, usually in 50 or 60 pulls the capsule of the vitreous to the retina and collapses on itself, like a balloon deflating. This is called vitreous detachment, and is a normal part of aging.

Volleyball
This thin layer of tissue lines the inside of the eyeball and contains cells that receive light and to put the visual messages that are sent to the brain via the optic nerve. Retina also contains many blood vessels, which as a result of various eye diseases or disesases, it can cause damage and bleeding, which causes blindness. Retinal detachment occurs when it loses its attachment to the part of the eye, allowing it to the wall of the eye.

Macular
This is an area in the central part of the retina that provides detailed vision. Disease or injury has affected this area will almost always result in a significant loss of vision. One of the most common diseases affecting this part of the retina macular degeneration.

Optic Nerve
The optic nerve transmits messages from the retina to the brain, which interprets the message, which leads to the perception of vision. Glaucoma damages the optic nerve, causing nerve fibers gradually disappear, which, in a subtle, but progressive loss of vision.

via blundelloptometry