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J Stepanik

Publications and source records attributed to J Stepanik.

At least 37 records · Page 2Linked to original sources

[The relationship of the collapse-phenomenon on the disc to the pulsatory variations of the intraocular pressure (author's transl)].

The collapse-phenomenon of the central retinal artery induced by compression of the eyeball and the pulsatory variations of the intraocular pressure were recorded simultaneously. The collapse-phenomenon indicating the systolic pressure of the ophthalmic artery was correlated to the peak and that indicating the diastolic pressure of the ophthalmic artery to the through of the pulsewave. This finding has to be taken into account when evaluating the curves delivered by Stepanik's ophthalmic artery-tonography.

Humans

[The Mackay-Marg-tonometer. A clinically applicable measuring apparatus for Pt-values (author's transl)].

Comparative pressure measurements on the corneae of enucleated eyes and on a 0.05 mm-thick rubber membrane showed that the Pt-values obtained by the MMT can be sufficiently exactly controlled. An air chamber attached to a Hg-manometer has in an upper wall a round window 8 mm in diameter, closed by a 0.05 mm-thick rubber membrane. The sensor of the MMT is mechanically fixed over the window so that the foot plate of the sensor indents the rubber membrane by 1 mm. The pressure in the chamber can be varied at will by vanying the amount of air in it.

Humans