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Biomedical subjects

B R Frueh

Publications and source records attributed to B R Frueh.

64 records · Page 4Linked to original sources
PubMed1980

The mechanistic classification of ptosis.

The commonly used classifications for ptosis do not have a unifying concept, and this may contribute to confusion rather than clarification. Based on the mechanisms that cause ptosis, all cases can be classified into one or more of the following categories: (1) neurogenic; (2) myogenic; (3) aponeurotic; and (4) mechanical. While none of these mechanisms is original, this paper presents them together for the first time as an inclusive and helpful classification of ptosis. Before placing a patient in one or more of the four categories, a thorough history must be taken, an examination must be done, and appropriate laboratory tests must be performed. The thought processes then necessary to classify the ptosis should clarify not only the site of the defect but also the prognosis and range of procedures that may be used to correct the ptosis.

Blepharoptosis↗
PubMed1976

The effect of rectus muscle union.

It is shown that the rectus muscle union of Jensen allows the lateral half of the superior rectus and the lateral half of the inferior rectus to provide active abduction.

Adult↗
PubMed1975

Corneal thickness measured by interferometry.

An optical method for measuring the thickness of transparent structures has been developed, and has been used to measure, in vivo, the thickness of the human cornea. The thickness is measured by placing the anterior surface of the cornea at the focus of a beam of coherent laser light and then measuring the spacing between the interference fringes generated by the reflected light. The thickness is then calculated from the fringe spacing. The method has been used to measure corneal thickness in frog and human corneas. These measurements have been correlated with histologic and pachometer measurements of corneal thickness. A significant capability of this technique is to measure the thickness of optically opaque corneas.

Animals↗
PubMedDate not supplied

A profile of patients with intractable blepharospasm.

Of those patients seeking surgical correction for intractable blepharopasm, the spasm was more commonly bilateral than unilateral by a ratio of about 7:1 and the bilateral form was more common in women than men by a ratio of about 3:1. The unilateral disease had an equal sex incidence. The disease seemed to be the same in men and women. The median age of onset was 59 years old, and the median interval between onset of symptoms and surgery was three years. Most of these patients had seen many physicians, and all prior medical and surgical treatments had been unsuccessful.

Adult↗