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Optic in Medical Dictionary

Blindness

... caused by injury , by lesion s of the brain or optic nerve , by disease of the cornea or retina ... Damage to any portion of the eye , the optic nerve , or the area of the brain responsible for ... or dermatome. Facial rash can lead to optic nerve involvement with resultant blindness . ...

Fiber

... FIBER OPTICS - A flexible fiber optic scope that is used to directly visualize the ... process and cannot be hastened. Pixie fiber optic scope Small-diameter fiber optic scope inserted through a small-diameter needle. ...

Glaucoma

... a group of disorders that lead to damage to the optic nerve , the nerve that carries visual information from the eye to the brain. Damage to the optic nerve causes vision loss, which may progress ... high pressure inside the eye that damages the optic nerve and can result in permanent vision ....

Gliomas

... that can be found in various parts of the brain. optic glioma s are gliomas that affect part of the optic nerve s (the nerve s that carry visual information to the brain from the eyes ) or the optic chiasm. Gliomas are thought to be derived ...

Neuritis

... ] [ Search ] [ Ask the Doctor Forums ] ... optic neuritis may affect one or both eyes . It may ... or as a symptom of MS. Not everyone who has optic neuritis will develop MS. Likewise, not everyone with MS will develop optic neuritis . Alternate Names : Neuritis - ...

Optic glioma

... optic glioma s are rare and the cause is unknown. These ... age 20. There is a strong association between optic glioma and neurofibromatosis Type 1 (NF1). An optic glioma is a tumor created by growth of ...

Optic nerve atrophy

... optic nerve atrophy Definition: optic nerve atrophy involves tissue death of the ... of vision from the eye to the brain. optic Nerve Atrophy ...

Optic neuritis

... optic neuritis may affect one or both eyes . It may ... or as a symptom of MS. Not everyone who has optic neuritis will develop MS. Likewise, not everyone with MS will develop optic neuritis . ...

Papilledema

... Papilledema is the swelling of the optic nerve as it enters the back of the eye . When ... (pap-il-eh-DEE-ma) Swelling around the optic disk , the area where the optic nerve (the nerve that carries messages from ...

Retina

... light and sends images to the brain by way of the optic nerve . The retina is the nerve layer ... and creates impulses that travel through the optic nerve to the brain. How's the retina ... caused by injury , by lesion s of the brain or optic nerve , by disease of the cornea or retina ...

Visual field

... and other changes. In addition to the loss of optic nerve fiber s, primary open-angle glaucoma ... worst cases, total blindness develops. The optic chiasm, which supplies the nerve to the eyes , ... pituitary gland enlarges, it can press on the optic chiasm and cause visual field problems. ...

Anatomy

... made up of several small bones called phalanges. The anatomy of the optic nerve makes it a sensitive marker for problems inside the brain. This ... Kidney Disease and Dialysis ... FIBER OPTICS - A flexible fiber optic scope that is used to directly visualize the internal anatomy of a ...

Arthroscopy

... for the visualization of the interior of a joint through the use of optic instruments. Surgery can now be performed on larger joints using ... and repair rotator cuff injuries . Arthroscopy involves using a fiber optic endoscope to repair the joint . Arthroscopy - with the use of an ...

Atrophy

... open-angle glaucoma exhibits cupping ( depression ) and atrophy of the optic disc (the front surface of the optic nerve , which is seen in the back of the eye ), in the absence of other ...

Bronchoscopy

... the treatment ofsome lung conditions. Alternative Names: Fiber optic bronchoscopy How the test is performed: Text Continued Below ... ... visualization of the inside of a patient's lung with the use of a fiber optic tool called a bronchoscope. Bronchoscopy See all Pictures & ...

Disk

... due to pregnancy , or acci dental falls . Swelling around the optic disk , the area where the optic nerve (the nerve that carries messages from the eye to the brain) ...

Edema

... a generous donation from: ... Papill edema is the swelling of the optic nerve as it enters the back of the eye . When you have a headache or ... with radiation. lymph oblast ... papill edema Swelling of the optic disk . May be due to an increase of pressure in the skull . papilloma ....

Endoscopy

... esophagus , stomach , and first part of the intestine with a fiber optic instrument. Tissue may be taken for tests. Risks ... Endoscopy Unit ... visualization of the inside of a patient's lung with the use of a fiber optic tool called a bronchoscope. ENDOSCOPY : Viewing the inside of a body ...

Glazes

... Glazes Gliobla stoma Multi forme ( Primary Brain Tumor ) Glioma - optic ( optic Glioma ) Glioma ( Primary Brain Tumor ) ... Many of the traditional ...

Insulin-dependent diabetes mellitus

... referred to as "DIDMOAD" ( diabetes insipidus , diabetes mellitus , optic atrophy , and deafness ). Only the insulin-dependent diabetes mellitus and optic atrophy are necessary to make the diagnosis . Type 2 diabetes ...

Laparoscopy

... ( laparoscopy under local anesthesia ) LuMax cystometry system Fiber optic cystometry system indicated for diagnosis of incontinence and ... LAPAROSCOPIC CHOLANGIOGRAM - Laparoscopy involves the use of a fiber optic flexible scope that is introduced into the abdominal cavity through a ...

Ocular

... the eye where the iris meets the cornea , and the appearance of the optic nerve are all considered in the diagnosis of glaucoma . IOP is ... 40 or more. The increased pressure, unless it is relieved, will damage the optic nerve and produce blindness . ...

Sclera

... extends from the cornea (the clear front section of the eye ) to the optic nerve at the back of the eye . The sclera gives the eye its white ... remainder of the eyeball. The inner layer consists of the light-sensitive optic nerve . ...

Transillumination

... rather than solid. Ultrasound . transillumination - a fiber optic light probe placed on the baby's chest wall (the side of the chest with ... other air leaks: ... EndoLumina II transillumination system Fiber optic medical device designed to aid in the visualization and identification of ...

Acoustic

... and an auditory brainstem evoked response. An inherited disorder that causes dark spots on the skin and tumor s of the skin , peripheral , optic and acoustic nerve s. neurology The branch of medicine that pertains to the nervous system. With the exception of improvement in a minimal ...

Aging

... when fluids that normally flow in and out of the eye drain improperly, increasing the pressure inside the eye and eventually dam aging the optic nerve . Aging is a very complex process that involves many areas of your body. There is no single product, pill or substance which could cure ...

Bends

... bends light and helps to focus it onto the retina where specialized cells (photo receptors) detect light and transmit nerve impulses via the optic nerve to the brain where the image is formed. The cornea is dome shaped. In one hand , you hold a vial containing a suspected allergen ...

Carcinogen

... . However, marijuana has serious side effects and contains carcinogen s, and any IOP-lowering medication must be taken continually to avoid optic nerve damage. fetal or parental exposure to potentially teratogen ic, mutagenic or carcinogen ic agents such as drugs, chemicals, radiation ...

Cavity

... Dermatitis Status Epilepticus STD ( Sexually Transmitted Disease ) ... LAPAROSCOPIC CHOLANGIOGRAM - Laparoscopy involves the use of a fiber optic flexible scope that is introduced into the abdominal cavity through a small (1 inch) incision . Placed over the cervix (the opening of the ...

Colonoscopy

... ( inspection of the entire colon ). Video: Colonoscopy exam TRANSCRIPT A colon oscopic examination involves gently inserting a fiber optic colon oscope into your rectum and large intestine to view your lower gastrointestinal tract. Answer: Colonoscopy is an examination of the ...

Digital rectal exam

... hyperplasia ) and cancer of the prostate . Following the digital rectal exam , the sigmoid oscope will be inserted. This is a flexible fiber optic tube about 20 inches long. Prostate Cancer Screening—A digital rectal exam (DRE) is used to detect an enlarged prostate or prostate ...

Dorsal

... s in the central nervous system produce neurological disease called neurosyphilis which can include tabes dorsal is, general paresis , and optic atrophy . At this time the virus infects nerve s (namely, the dorsal root ganglia) where it remains latent (lies low) for years. Colles ...

Duodenum

... slow or obstruct the flow of bile out of the gallbladder result in gallbladder disease . ENDOSCOPE - A flexible instrument containing fiber optic bundles and a light source used by physician s to examine the esophagus , stomach , and duodenum . ...

Eye

... The eye has a number of components. These components include but are not limited to the cornea , iris , pupil , lens , retina , macula , optic nerve , choroid and vitreous. Eye preparations can come as eye drops, ointments, lotions or gels. Wash your hands before putting any ...

Exudate

... tized or scraped ... An eye examination will reveal changes that indicate high blood pressure , including papilledema ( swelling of the optic nerve ), retina l bleeding , or infarction (cotton wool spots or soft exudate -- fluid with cellular debris) in the retina . Genetics - ...

Eye Conditions

... They provide a three-dimensional (3-D) view of the back of the eye , allowing a more detailed view of certain eye conditions (such as masses, optic nerve swelling , or retinal detachment ). Eye health consultants at the RNIB have revealed a direct link between obesity and several ...

Eyes

... are sphere-shaped. A tough, non-leaky protective sheath (the sclera ) covers the entire eye , except for the clear cornea at the front and the optic nerve at the back. Eyes Childhood cancer survivors may have late effects that affect the eyes . Certain factors increase the risk that ...

Fertility

... of couples. This article looks at some of the causes and when to seek expert help. In fertility may result from irregular menstrual periods . optic nerve swelling may lead to blindness if the intra cranial pressure is not relieved. Next section Pseudotumor Cerebri : Symptoms & Signs ... ...

Gastrointestinal

... endoscopy (en-DOS-co-pee) is a visual examination of your esophagus , stomach , and first part of the intestine with a fiber optic instrument. Tissue may be taken for tests. Risks ... Gastrointestinal system The digestive or gastrointestinal tract (GIT) extends from the ...

Growth problems

... occur. Bone growth problems around the eye socket that affect the shape of the child's face as it grows. Dry eye . Cataracts . Damage to the optic nerve and retina . Poor vision . Drooping eyelids. Eyelid tumor s. Learning and growth problems may contribute to low self-esteem. ...
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