Disease Eye Diseases Pictures

Ocular Melanoma

Mon 01 Feb 2016 21:06:00 +0200

Ocular melanomas comprise uveal and conjunctival sub-types, which are very different from each other. A large majority of uveal melanomas involve the choroid, with less than 10% being confined to the ciliary body and iris. They tend to metastasize haematogenously, almost always involving the liver. Therapeutic methods include various forms of radiotherapy, surgical resection and phototherapy, which are often used in combination. Conjunctival melanomas show many similarities to their cutaneous counterparts, often metastasizing by lymphatic spread. Treatment consists of excision of invasive melanoma with adjunctive radiotherapy and/or cryotherapy and topical chemotherapy for intra-epithelial disease. The management of patients with ocular melanomas demands a good understanding of the pathology of these tumours. Pathological examination of the tumour indicates the prognosis and hence the need for further investigation and treatment. The scope of the pathologist is enhanced thanks to advances in molecular biology.

Herpes on Eyelid

Mon 01 Feb 2016 20:27:00 +0200

To fully understand why one might have herpes on the eyelid, it is important to know what herpes is and what can trigger it. The herpes simplex virus infects the nerves, mucous membranes and the skin.

The first type of the herpes simplex virus is the most common, infecting primarily the face and causing those familiar fever blisters or cold sores. The second type of virus is the sexually transmitted disease that infects the genitals. Both types of the herpes simplex virus can spread to the face, resulting in herpes on the eyelid however, the first type is the most common cause.

Type one of the virus is extremely contagious and is easily transmitted by simply having skin contact with the infected person. It is very common and at least 90 percent of the population has been exposed to this, usually during childhood. Once you have had your initial infection, the virus remains in a dormant state, living in your eye or skin nerve cells. From time to time, the virus is reactivated and new blisters or cold sores are created.

Reactivation of herpes on the eyelid can be triggered by a few different reasons, including:
Sun exposure
Fever
Menstruation
Stress
Certain prescription and over the counter medications
Surgery
Injury

Eye Herpes

Mon 01 Feb 2016 20:18:00 +0200

The two types of herpetic eye disease have different symptoms. One thing they have in common, however, is that they can both be very painful, because they affect the nerves directly. The problem is likely to be herpes zoster ophthalmicus if your doctor finds some or all of these symptoms:
Pain in and around only one eye
Redness, rash, or sores on the eyelids and around the eyes, especially on the forehead. Sometimes the rash breaks out on the tip of the nose.
Redness of the eye
Swelling and cloudiness of the cornea

The problem is likely to be herpes simplex keratitis if your doctor sees these symptoms:
Pain in and around only one eye
Redness of the eye
Feeling of dirt or "grit" in the eye
Overflowing tears
Pain when looking at bright light
Swelling or cloudiness of the cornea

Your doctor might want to use special tests if it looks like herpetic eye disease might be present. The pressure inside the eye will probably be checked, for example. There is also a special dye called fluorescein that the doctor might put into the eye. This dye glows under ultraviolet light and will show the doctor if the virus is causing problems on the surface of the eye.

Hemangioma Eyes

Mon 01 Feb 2016 20:08:00 +0200

Hemangiomas typically grow within the blood vessel layer beneath the retina called the choroid. If they are located in the macula (center of vision) or they leak fluid (which causes a retinal detachment or cystic changes in the retina), they can affect your vision. Many choroidal hemangiomas never grow or leak fluid and may be observed without treatment. Choroidal hemangiomas are not cancers and never metastasize.

Choroidal hemangioma are typically reddish to orange. Choroidal hemangioma can have areas of increased pigmentation which (in those cases) can make them difficult to differentiate from choroidal melanomas. Choroidal hemangiomas can cause far-sightedness (hyperopia), distorted vision (metamorphopsia), flashing lights, or blurred vision. Many choroidal hemangioma cause no symptoms at all, and are found on routine dilated eye examinations (ophthalmoscopy).

Intraocular photography and angiography: Eye-care specialists perform studies of the blood vessels in the eye with synthetic organic dyes called fluorescein or indocyanine green. The dyes are injected into the arm or hand and travel to the blood vessels inside the eye. If a tumor is in the eye, we can see specific characteristics of its circulation which can help us differentiate between it and other types of tumors. Choroidal hemangioma often have a unique pattern of circulation where the large blood vessels produce a "COARSE VASCULAR PATTERN."