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Biomedical subjects

M Mertz

Publications and source records attributed to M Mertz.

11 recordsLinked to original sources
PubMed1978

[Electronic image analysis in ophthalmology].

Based on experimental investigations a broad concept for the use of television image analysis in basic and clinical ophthalmology is given. This summary outline contents a short description of the technique and some examples for the clinical use of image analysis, like the measurement of corneal width and erosions, infrared pupillography, morphometry of the iris and quantitative fluorescence angiography. "Static" and "dynamic" image analysis are defined, the role of pattern recognition is mentioned. The results of the study demonstrate that television image analysis can be of great importance for the future of quantitative ophthalmology.

Corneal Diseases↗
PubMed1978

[Ultrasonic echography. Current and future tasks in the finding of intraocular foreign bodies].

Unlike most publications ultrasonography is not seen as an alternative concept to x-ray localization of intraocular foreign bodies but as supporting aid. It is primarily used for the rather simple measurement of the form of the injured eye and not so much for direct search of the foreign body. The latter is rather difficult to perform intraoperatively. The combined method is based on the Comberg localization using a mobile x-ray television unit. The x-ray imagery shows quickly, exactly and clearly the localization of the foreign body in the orbita. The eye itself cannot be seen on the monitor, but ultrasonic data allow to add its contours, corrected individually. This work is done by a computer. The measurement of coordinates and angles usually performed by the investigator is done by a computer, too. The linkage of both x-ray and ultrasonic equipment to a computer relieves the surgeon of the graphical tasks and ultrasonic search for the foreign body; it also gives information about the localization of the foreign body in the individual case during the entire operation.

Computers↗
PubMed1978

[Protein concentration in the aqueous humour of the rabbit after argon laser coagulation of the iris (author's transl)].

After coagulation of the iris of pigmented rabbits with argon laser, the protein concentration of the aqueous humour was measured at different times. An initial increase of the protein concentration was found both after low and high intensity coagulation. Already 5 hours later the protein concentration was again low and no further increase could be observed within 28 days. The contralateral untreated eye showed a lower but significant response. High intensity coagulation lead to a more severe reaction.

Animals↗
PubMed1977

[Quantitative fluorometry at the ocular fundus (author's transl)].

Description of a videodensitometric method for the quantitative evaluation of fluorescence angiography photographs using the Quantimet 720 image analysis computer system. The clinical value of the new method is demonstrated in a case of central serous retinopathy. With the aid of these measurements the activity of leakage points can be assessed more exactly than by mere subjective inspection of the gained pictures, thus allowing a better control of the effects of a chosen therapy.

Computers↗
PubMed1977

[Development of ophthalmological working procedures (author's transl)].

The work at a university clinic is characterized by teaching, research, and care of in- and out-patients. The combination of these basic tasks needs appropriate organization. To obtain optimal efficiency, the size and power of the single compartments, the teams working there are personal intentions of their members, and other special factors must be considered. Apart from local differences some basic outlines can be drawn characterizing the typical problems of an eye clinic taking into consideration its special matters. Moreover, the continuous clinical and scientific progress has to be taken in mind in order to create organizational forms feasable for change and adaptation. In this paper we present our considerations concerning the arrangement of our own clinic, and the experience gained in respect to the development of working methods. Some examples are given in order to demonstrate the realization of close conjunctions between the various parts of the clinic, and, likewise, the increase of efficiency of different methods and techniques gained by those means. This gives general ideas of the solution of some actual problems in a university eye clinic.

Eye Diseases↗