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Biomedical subjects

K G Noble

Publications and source records attributed to K G Noble.

59 records · Page 4Linked to original sources
PubMed1977

Fluorescein angiography of the hereditary choroidal dystrophies.

The hereditary choroidal dystrophies are divided into (1) geographic choroidal dystrophies (central areolar, peripapillary, generalised), (2) gyrate atrophy, and (3) choroideremia. Each of these disorders is discussed with regard to mode of inheritance, age of onset, symptoms, fundus appearance, and visual function testing. A typical case history of each disorder is presented together with fluorescein angiography, and the fluorescein angiographic findings are related to our present understanding of these diseases. Fluorescein angiography was found to be most helpful in diagnosing the early cases, by confirming the absence of the choriocapillaris, and in demonstrating either a local or general abnormality. The role of fluorescein angiography in understanding the aetiology of choroidan dystrophies is discussed.

Adolescent↗
PubMed1977

Pseudoinflammatory macular dystrophy.

A family with pseudoinflammatory macular dystrophy (PMD) is presented. This dominantly inherited macular dystrophy has its onset in the 3rd to 5th decades with the earliest manifestation being a macular subretinal neovascular network. Visual function tests (ERG, EOG, visual fields, retinal sensitivity) in the early and late stages indicates this is local or geographic disease. This dystrophy should be differentiated from other hereditary causes for subretinal neovascularization (angioid streaks, vitelliform dystrophy, dominant drusen of Bruch's membrane, optic nerve drusen and myopia). It is suggested that treatment be directed at early obliteration of the subretinal neovascularization with intense photocoagulation since the outcome in virtually all cases of untreated PMD is legal blindness.

Adult↗
PubMed1977

Chorioretinitis in the adolescent: two case presentations with discussion.

Two cases of chorioretinitis in adolescence demonstrate the characteristic course of events. It is typically caused by Toxoplasma gondii and is usually acquired congenitally. Toxocara infection must be considered in younger children. Other etiologic agents are rarely implicated in children and youth. Diagnosis of toxoplasmic chorioretinitis is based on a characteristic history of visual disturbance and specific funduscopic appearance, along with confirmatory serological studies. Management is complex, utilizing pyrimethamine (Daraprim), sulfadiazine, and prednisone in combination for several weeks or months. The combined long-term care by the physician generalist and ophthalmologist is essential. Recognition of adolescent developmental issues is important to insure optimal compliance. The prognosis is guarded, with 5% to 30% recurrence rates noted after treatment. Severe visual impairment may be seen.

Adolescent↗
PubMed1976

Detachments of the retinal pigment epithelium at the posterior pole.

Multiple vitelliform cysts of the retina, a disorder of unknown cause in which there are multiple detachments of the retinal pigment epithelium at the posterior pole, occurred in five patients. In four patients all lesions were located outside the parafoveal area while one patient showed bilateral foveal elevations associated with more eccentric detachments. Several patients showed slow resolution of some of the detachments with mild disturbances of the pigment epithelium.

Adult↗