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Biomedical subjects

D M Krumholz

Publications and source records attributed to D M Krumholz.

2 recordsLinked to original sources

Nonsurgical management of blepharoptosis.

Ptosis of one or both eyelids is a problem which affects a small, but nonetheless significant, portion of the population. Ptosis can be managed in a variety of ways, all of which can usually bring about a resolution of the problem to varying degrees of satisfaction. Two patients who were helped significantly through the use of two non-invasive techniques are presented here. Both patients, somewhat handicapped by the ptosis, were able to return to a more normal daily routine as a result of the therapy employed. The etiology of blepharoptosis and its workup are briefly reviewed.

Adult

Short-term changes in tonic accommodation.

Experiments were performed to determine the diurnal variation of, as well as the influence of total darkness on, tonic accommodation. In general, under both conditions trend analysis showed that variations in tonic accommodation over time were either nonsystematic in nature or could be best described by a simple linear function. Given the relatively small range of mean tonic accommodation values over time (0.5 to 1.1 D), the results demonstrate the robustness and stability of tonic accommodation under naturally occurring viewing conditions during the course of a day. In contrast, during the 2-hr period in total darkness, tonic accommodation exhibited a three-fold increase in mean range (0.6 to 2.5 D) as well as a significant increasing linear trend in some subjects, suggesting less stability of tonic accommodation in the absence of visual stimuli.

Accommodation, Ocular