| D007223 |
Infant |
A child between 1 and 23 months of age. |
Infants |
|
| D008266 |
Macula Lutea |
An oval area in the retina, 3 to 5 mm in diameter, usually located temporal to the posterior pole of the eye and slightly below the level of the optic disk. It is characterized by the presence of a yellow pigment diffusely permeating the inner layers, contains the fovea centralis in its center, and provides the best phototropic visual acuity. It is devoid of retinal blood vessels, except in its periphery, and receives nourishment from the choriocapillaris of the choroid. (From Cline et al., Dictionary of Visual Science, 4th ed) |
Lutea, Macula,Luteas, Macula,Macula Luteas |
|
| D008297 |
Male |
|
Males |
|
| D008854 |
Microscopy, Electron |
Microscopy using an electron beam, instead of light, to visualize the sample, thereby allowing much greater magnification. The interactions of ELECTRONS with specimens are used to provide information about the fine structure of that specimen. In TRANSMISSION ELECTRON MICROSCOPY the reactions of the electrons that are transmitted through the specimen are imaged. In SCANNING ELECTRON MICROSCOPY an electron beam falls at a non-normal angle on the specimen and the image is derived from the reactions occurring above the plane of the specimen. |
Electron Microscopy |
|
| D009887 |
Ophthalmoscopy |
Examination of the interior of the eye with an ophthalmoscope. |
Ophthalmoscopies |
|
| D009900 |
Optic Nerve |
The 2nd cranial nerve which conveys visual information from the RETINA to the brain. The nerve carries the axons of the RETINAL GANGLION CELLS which sort at the OPTIC CHIASM and continue via the OPTIC TRACTS to the brain. The largest projection is to the lateral geniculate nuclei; other targets include the SUPERIOR COLLICULI and the SUPRACHIASMATIC NUCLEI. Though known as the second cranial nerve, it is considered part of the CENTRAL NERVOUS SYSTEM. |
Cranial Nerve II,Second Cranial Nerve,Nervus Opticus,Cranial Nerve, Second,Cranial Nerves, Second,Nerve, Optic,Nerve, Second Cranial,Nerves, Optic,Nerves, Second Cranial,Optic Nerves,Second Cranial Nerves |
|
| D012160 |
Retina |
The ten-layered nervous tissue membrane of the eye. It is continuous with the OPTIC NERVE and receives images of external objects and transmits visual impulses to the brain. Its outer surface is in contact with the CHOROID and the inner surface with the VITREOUS BODY. The outer-most layer is pigmented, whereas the inner nine layers are transparent. |
Ora Serrata |
|
| D002549 |
Diffuse Cerebral Sclerosis of Schilder |
A rare central nervous system demyelinating condition affecting children and young adults. Pathologic findings include a large, sharply defined, asymmetric focus of myelin destruction that may involve an entire lobe or cerebral hemisphere. The clinical course tends to be progressive and includes dementia, cortical blindness, cortical deafness, spastic hemiplegia, and pseudobulbar palsy. Concentric sclerosis of Balo is differentiated from diffuse cerebral sclerosis of Schilder by the pathologic finding of alternating bands of destruction and preservation of myelin in concentric rings. Alpers' Syndrome refers to a heterogeneous group of diseases that feature progressive cerebral deterioration and liver disease. (From Adams et al., Principles of Neurology, 6th ed, p914; Dev Neurosci 1991;13(4-5):267-73) |
Alpers Syndrome,Balo Concentric Sclerosis,Cerebral Sclerosis, Diffuse,Encephalitis Periaxialis,Myelinoclastic Diffuse Sclerosis,Poliodystrophia Cerebri,Schilder Disease,Alpers Diffuse Degeneration of Cerebral Gray Matter with Hepatic Cirrhosis,Alpers Disease,Alpers Progressive Infantile Poliodystrophy,Alpers' Disease,Alpers' Syndrome,Alpers-Huttenlocher Syndrome,Balo's Concentric Sclerosis,Encephalitis Periaxialis Concentrica,Encephalitis Periaxialis Diffusa,Neuronal Degeneration Of Childhood With Liver Disease, Progressive,Progressive Neuronal Degeneration of Childhood with Liver Disease,Progressive Sclerosing Poliodystrophy,Schilder's Disease,Sudanophilic Cerebral Sclerosis,Alper Disease,Alper Syndrome,Alper's Disease,Alper's Syndrome,Alpers Huttenlocher Syndrome,Concentric Sclerosis, Balo,Concentric Sclerosis, Balo's,Diffuse Cerebral Scleroses,Diffuse Cerebral Sclerosis,Diffuse Scleroses, Myelinoclastic,Diffuse Sclerosis, Myelinoclastic,Disease, Alpers',Disease, Schilder,Disease, Schilder's,Myelinoclastic Diffuse Scleroses,Progressive Sclerosing Poliodystrophies,Schilders Disease,Scleroses, Balo's Concentric,Scleroses, Myelinoclastic Diffuse,Sclerosis, Diffuse Cerebral,Sclerosis, Myelinoclastic Diffuse,Syndrome, Alpers,Syndrome, Alpers-Huttenlocher |
|
| D002675 |
Child, Preschool |
A child between the ages of 2 and 5. |
Children, Preschool,Preschool Child,Preschool Children |
|
| D003594 |
Cytoplasmic Granules |
Condensed areas of cellular material that may be bounded by a membrane. |
Cytoplasmic Granule,Granule, Cytoplasmic,Granules, Cytoplasmic |
|