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Biomedical subjects

L L Sloan

Publications and source records attributed to L L Sloan.

At least 19 recordsLinked to original sources
PubMed1980

Needs for precise measures of acuity. Equipment to meet these needs.

The equipment described provides precise, reliable measures of acuity from normal to the lowest measurable and meets all recommendations of the NAS-NRC Working Group 39 of the Committee on Vision. Special features of the equipment are as follows: (1) It is a valuable component of a complete clinical eye examination. (2) Because it measures very low acuities, it is excellent for use in low-vision clinics. (3) It meets the demanding requirements of collaborative research studies in which acuity is the primary measure of the effects of therapy. These studies involve tests at repeated intervals under conditions that can be duplicated in a number of examining centers. The adoption of one standard method of measuring acuity for these diverse needs would aid in establishing a sound, generally understood foundation for this basic measure of visual function.

Eye Diseases↗
PubMed1978

Correlation of clinicopathologic findings in a patient. Congenital night blindness, branch retinal vein occlusion, cilioretinal artery, drusen of the optic nerve head, and intraretinal pigmented lesion.

The ocular clinicopathologic features of this unique patient were congenital stationary night blindness, drusen of the optic nerve head, cilioretinal artery, intraretinal pigmented lesion, and branch retinal vein occlusion. Photocoagulation therapy led to total disappearance of the neovascular tissue, clinically and histopathologically. Histopathologic examination showed an occluded branch vein associated with a sclerotic retinal arteriole. Peripheral to the site of venous occlusion, inner ischemic retinal atrophy was present. The normal complement of rod and cone photoreceptors supports the view that the night blindness in this case was an abnormality in the neural transmission and not on a morphological basis. The pigmented intraretinal lesion proved to be a localized area of retinal and choroidal neovascularization with anastomosis and secondary retinal pigment epithelial hyperplasia. This lesion was identical to Fuchs' dot of myopia but out patient was hyperopic.

Argon↗