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Left visual hemifield
Left visual hemifield The left half of the visual field, projects on the nasal hemiretina of the left eye and on the temporal hemiretina of he right eye.
RELATED TERMS--------------------------------------
Temporal
Having to do with the side of the head.
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.
SIMILAR TERMS--------------------------------------
Left Ventricular Assist Device (LVAD)
In patients with end-stage heart disease whose hearts do not pump a sufficient amount of blood to keep the body healthy, it is possible to place a mechanical device that aids in the pumping function of the blood. This device is known as a left ventricular assist device. There are many devices available for implantation.
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Lochia
Vaginal discharge made up of mucus, blood, and tissue that continues after delivery for up to six weeks. Usually bright red and as heavy or heavier than a period in the first few days after birth, then gradually tapering off.
Low birth weight
When a full-term infant weighs less than 5.5 pounds at birth. Nearly seven of every 100 newborns are low birthweight babies; most of these cases are linked to cigarette, alcohol, or drug use during pregnancy and can be prevented.
Lumbar puncture
A procedure in which spinal fluid is drawn from the spinal column to check for diseases, including meningitis.
L cones
Long wavelength sensitive cones (red). Are most sensitive to a wavelength of approximately 558nm. (See also M Cones and S Cones).
Lateral geniculate nucleus
Structure located in the thalamus which is a major recipient of axons from the retina. About 10% of its input is from the retina. It is composed of 6 layers. While input to the LGN from the two eyes is segregated, significant binocular influence can be exerted on the LGN by the cortex.
Left visual hemifield
Lightness
The perception of reflectance. Related to the perception of an object's surface.
Linespread
The distribution of how the image of a very thin line is blurred on the retina (due to diffraction). Depends on pupil size.
LGN
See Lateral Geniculate Nucleus.
Lethal acrodermatitis
An inherited autosomal recessive disease in bull terriers relating to zinc metabolism.
Lymphangitis
Inflammation of a lymph vessel.
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