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| This glossary contains: 19186 medical terms |
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Floaters
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Floaters Small condensations of cells in the vitreous body, the fluid in the eye, which cast shadows on the back of the eye, known as the retina. This is normally associated with aging. Floaters may indicate a more serious problem such as a retinal detachment. If you suddenly see a lot of floaters, please see your eye doctor.
RELATED TERMS--------------------------------------
Vitreous
The transparent, solid, gelatinous material which fills the interior of the eye behind the lens. It allows the eye to maintain its shape.
Eye
The organ of sight. 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.
Cast
Reproduction of structures made by pouring plaster or stone into a mold.
Retina
A membrane lining the inside of the back of the eye that contains light-sensitive nerve cells that convert focused light into nerve impulses, making vision possible.
Aging
The process of becoming older, a process that is genetically determined and environmentally modulated.
Floaters
Small condensations of cells in the vitreous body, the fluid in the eye, which cast shadows on the back of the eye, known as the retina. This is normally associated with aging. Floaters may indicate a more serious problem such as a retinal detachment. If you suddenly see a lot of floaters, please see your eye doctor.
Retinal
Light-absorbing portion of rhodopsin. The absorption of light causes retinal to change from 11-cis to 11-trans configuration
Detachment
A behavior pattern characterized by general aloofness in interpersonal contact; may include intellectualization, denial, and superficiality.
Doctor
1. One whose occupation is to treat diseases, particularly a physician, dentist, or veterinarian with an appropriate license. 2. A teacher (particularly at a college or university), a scholar, or one who holds a postgraduate degree (especially a Ph.D. degree). 3. A shaman.
SIMILAR TERMS--------------------------------------
Floater
A blurry spot that appears to float around in the eye but does not block vision. The blur is the result of debris from the vitreous humour casting a shadow on the retina.
Floating rib
One of the last two ribs. A rib is said to be "floating" if it does not attach to the sternum (the breast bone) or to another rib. There are usually 12 pairs of ribs in all. Each pair of ribs is attached to the building blocks of the spine (the vertebrae) in the back. The 12 pairs of ribs consist of: True ribs: The first seven ribs attach to the sternum (the breast bone) in the front and are known as true (or sternal) ribs and False ribs: The lower five ribs do not directly connect to the sternum and are known as false ribs. The upper three false ribs connect to the costal cartilages of the ribs just above them. The last two false ribs, however, usually have no ventral attachment (no anchor at all in front) and are called floating, fluctuating or vertebral ribs.
Floating-Harbor syndrome
A genetic condition characterized by the triad of short stature apparent at birth with significantly delayed bone age; expressive language delay, usually in the presence of normal motor development; and a triangular face with a prominent nose and deep-set eyes. Other features include posteriorly rotated ears, long eyelashes, thin lips, broad downturned mouth, short neck, low posterior hairline, celiac disease, joint laxity, curved fifth finger (clinodactyly), and hirsutism (hairiness).
PREVIOUS AND NEXT TERMS--------------------------------------
Femara
Medication used in the treatment of advanced or metastatic breast cancer.
Fioricet
Medication used in the treatment of tension headaches.
Fiorinal
Medication used in the treatment of tension headaches.
Focalin
Integral part of total treatment program to stabilize ADHD/ADD.
Foradil
Used in the treatment of asthma and in the prevention of bronchospasm.
Floaters
Fluorescein angiography
Fluorescein Angiography is a diagnostic test used to assess pathology that affects the retina, choroid and/or iris of the eye. Fluorescein angiography is used to assess the blood flow of the eye and abnormal states are referred to as either hyperfluorescence or hypofluorescence relative to the normal amount of fluorescence. Fluorescein angiography involves an intravenous injection of sodium Fluorescein ( a dye) into the antecubical vein ( a vein in the arm) and then photographs are taken of the eye as the dye enters and leaves the blood system of the eye. The doctor will evaluate prefilling ( i.e., what the retina and choroid look like before the dye enters the eye), transit ( i.e., first passage of dye through the retina and choroid), recirculation (i.e., fluoroscien has become equally distributed throughout the eye and then starts to circulate through again) and later phase ( i.e., as the fluoroscien is eliminated from the body by the kidneys). The test lasts about 30 minutes. Nausea and vomiting are the most common side effects, occurring in about 5% or less of patients. Severe side effects ( e.g., anaphylaxis, death) have been reported but are very rare.
Fovea
A central portion of the retina and macula that contains only cones. The fovea is the only part of the eye that is capable of 20/20 or better vision.
Fundus
The back part of the eye that can be seen with an instrument called an ophthalmoscope. Visible features include the retina with its blood vessels, the optic nerve and choroid. The fundus surrounds the fovea, that part of the eye used for reading.
Fundus flavimaculatus
See Stargardt’s disease.
flurazepam
A hypnotic substance.
RELATED TERMS--------------------------------------
Vitreous
The transparent, solid, gelatinous material which fills the interior of the eye behind the lens. It allows the eye to maintain its shape.
Eye
The organ of sight. 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.
Cast
Reproduction of structures made by pouring plaster or stone into a mold.
Retina
A membrane lining the inside of the back of the eye that contains light-sensitive nerve cells that convert focused light into nerve impulses, making vision possible.
Aging
The process of becoming older, a process that is genetically determined and environmentally modulated.
Floaters
Small condensations of cells in the vitreous body, the fluid in the eye, which cast shadows on the back of the eye, known as the retina. This is normally associated with aging. Floaters may indicate a more serious problem such as a retinal detachment. If you suddenly see a lot of floaters, please see your eye doctor.
Retinal
Light-absorbing portion of rhodopsin. The absorption of light causes retinal to change from 11-cis to 11-trans configuration
Detachment
A behavior pattern characterized by general aloofness in interpersonal contact; may include intellectualization, denial, and superficiality.
Doctor
1. One whose occupation is to treat diseases, particularly a physician, dentist, or veterinarian with an appropriate license. 2. A teacher (particularly at a college or university), a scholar, or one who holds a postgraduate degree (especially a Ph.D. degree). 3. A shaman.
SIMILAR TERMS--------------------------------------
Floater
A blurry spot that appears to float around in the eye but does not block vision. The blur is the result of debris from the vitreous humour casting a shadow on the retina.
Floating rib
One of the last two ribs. A rib is said to be "floating" if it does not attach to the sternum (the breast bone) or to another rib. There are usually 12 pairs of ribs in all. Each pair of ribs is attached to the building blocks of the spine (the vertebrae) in the back. The 12 pairs of ribs consist of: True ribs: The first seven ribs attach to the sternum (the breast bone) in the front and are known as true (or sternal) ribs and False ribs: The lower five ribs do not directly connect to the sternum and are known as false ribs. The upper three false ribs connect to the costal cartilages of the ribs just above them. The last two false ribs, however, usually have no ventral attachment (no anchor at all in front) and are called floating, fluctuating or vertebral ribs.
Floating-Harbor syndrome
A genetic condition characterized by the triad of short stature apparent at birth with significantly delayed bone age; expressive language delay, usually in the presence of normal motor development; and a triangular face with a prominent nose and deep-set eyes. Other features include posteriorly rotated ears, long eyelashes, thin lips, broad downturned mouth, short neck, low posterior hairline, celiac disease, joint laxity, curved fifth finger (clinodactyly), and hirsutism (hairiness).
PREVIOUS AND NEXT TERMS--------------------------------------
Femara
Medication used in the treatment of advanced or metastatic breast cancer.
Fioricet
Medication used in the treatment of tension headaches.
Fiorinal
Medication used in the treatment of tension headaches.
Focalin
Integral part of total treatment program to stabilize ADHD/ADD.
Foradil
Used in the treatment of asthma and in the prevention of bronchospasm.
Floaters
Fluorescein angiography
Fluorescein Angiography is a diagnostic test used to assess pathology that affects the retina, choroid and/or iris of the eye. Fluorescein angiography is used to assess the blood flow of the eye and abnormal states are referred to as either hyperfluorescence or hypofluorescence relative to the normal amount of fluorescence. Fluorescein angiography involves an intravenous injection of sodium Fluorescein ( a dye) into the antecubical vein ( a vein in the arm) and then photographs are taken of the eye as the dye enters and leaves the blood system of the eye. The doctor will evaluate prefilling ( i.e., what the retina and choroid look like before the dye enters the eye), transit ( i.e., first passage of dye through the retina and choroid), recirculation (i.e., fluoroscien has become equally distributed throughout the eye and then starts to circulate through again) and later phase ( i.e., as the fluoroscien is eliminated from the body by the kidneys). The test lasts about 30 minutes. Nausea and vomiting are the most common side effects, occurring in about 5% or less of patients. Severe side effects ( e.g., anaphylaxis, death) have been reported but are very rare.
Fovea
A central portion of the retina and macula that contains only cones. The fovea is the only part of the eye that is capable of 20/20 or better vision.
Fundus
The back part of the eye that can be seen with an instrument called an ophthalmoscope. Visible features include the retina with its blood vessels, the optic nerve and choroid. The fundus surrounds the fovea, that part of the eye used for reading.
Fundus flavimaculatus
See Stargardt’s disease.
flurazepam
A hypnotic substance.
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This dictionary contains 19186 terms.
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