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Biomedical subjects

V Lubkin

Publications and source records attributed to V Lubkin.

15 recordsLinked to original sources
PubMed1990

Cyclic changes in conjunctival smears from menstruating females.

Cytohormonal evaluation has become an accurate procedure for the assessment of estrogenic effect on the vaginal and buccal mucosa. Both show a cyclical variation in the maturation index (an "estrogenic value" based on epithelial maturation). Conjunctival smears were taken from the temporal conjunctiva of 11 premenopausal and 7 postmenopausal females on a near-daily basis. No females had evidence of ocular surface disease, including keratoconjunctivitis sicca. After fixation and Papanicolaou staining, maturation indices for each specimen based on the differential morphology were red in a single blind fashion by a Papanicolaou cytologist. Cyclical variations paralleling the menstrual cycle in eight of nine premenopausal women were noted with maturation index values ranging from 30 (low estrogen effect) to 82 (high estrogen effect), peaking on day 11 or 21 of the menstrual cycle. No cyclical change was found in postmenopausal smears and smears of subjects with endocrine abnormalities. Maturation index values ranged from 30 to 38. Conjunctiva appears to be an estrogen-sensitive epithelium.

Cell Division↗
PubMed1990

Enucleation and psychic trauma.

The surgeon must be aware of the psychological impact on a patient when performing an enucleation. The surgeon should offer patients psychiatric assistance to deal with the trauma of an enucleation. The formation of a group therapeutic organization may be a viable approach to gathering patients to talk about their concerns. "Enucleations Anonymous" is proposed.

Depression↗
PubMed1988

Corneal modeling.

The Corneal Modeling System is presented as an integrated instrument system designed to give the corneal surgeon the capability of measuring and designing alterations of corneal shape that are comparable to the computer-aided design (CAD) capability used in aerospace design and other industries. The system provides realtime digital video image acquisition using a high-resolution, cylindrical photokeratoscope and scanning laser slit lamp. From these digitized images, the system's computer derives topographic and pachymetric information in sufficient density to produce a continuous mathematical function that represents both the front and the back surface of the cornea. The mathematical model may then be sampled in as many points as the clinical application requires, in the form of either computer graphics or a numerical data stream to control precision machinery to make contact lenses or tissue lenses. Representative computer graphics of normal and pathologic corneal conditions are presented.

Cornea↗
PubMed1978

The inverse Marcus Gunn phenomenon. An electromyographie contribution.

A patient with the inverse Marcus Gunn anomaly is presented. Electromyographic studies showed the salient fact that the closing of the involved eye on opposite motion of the lower jaw was not mediated by seventh nerve stimulation of the orbicularis oculi but by inhibition of the homolateral levator palpebrae superioris. As a consequence of this observation, a specific and effective operation could be planned.

Adult↗
PubMed1976

An interlocking slip knot for cataract sutures: preliminary report.

A new method of tying a knot for cataract surgery is demonstrated. Its purpose is to provide a safe, interlocking slip knot, using nylon suture, removable merely by pulling on the free ends. Cases are presented showing the safety and effectiveness of the ISK.

Astigmatism↗