[Threshold-oriented suprathreshold perimetry and threshold value perimetry with the Tübigen CC Automated Perimeter. A comparative study]. 1998

T M Wohlrab, and H Kreinberger, and C Erb, and N Stübiger, and F Dorner-schandl, and H J Thiel
Abteilung: Allgemeine Augenheikunde mit Poliklinik, Universitäts-Augenklinik Tübingen.

BACKGROUND We compared the standard suprathreshold strategy to the so-called threshold splitting strategy with 5 and 2 dB steps. The aim of the study was to establish whether the threshold splitting strategy had advantages over the suprathreshold strategy that has been used to date. METHODS We examined the 30 degrees visual field in 49 volunteers using suprathreshold perimetry and on the same day threshold splitting perimetry on the Tübinger Automatic Perimeter CC. A total of 191 test points were examined in suprathreshold strategy. Using the threshold splitting strategy, 67 test points were examined, with a test-point design similar to other perimeters with the threshold splitting strategy. The criteria for inclusion in the study were central light sensitivity differences greater than 25 dB, fixation better than 80% and an illumination class density < 2. CONCLUSIONS The average duration of the examination using the suprathreshold strategy was 2-3 min quicker than the threshold splitting strategy in normal visual fields or small scotomas, but it took up to 15 min longer if large scotomas were presents. Interpretation of the scotoma configuration showed subjective differences: the smaller the scotoma, the greater the differences because of the fact that threshold splitting perimetry utilizes test points that are farther apart than those used in suprathreshold perimetry.

UI MeSH Term Description Entries
D008297 Male Males
D008875 Middle Aged An adult aged 45 - 64 years. Middle Age
D012016 Reference Values The range or frequency distribution of a measurement in a population (of organisms, organs or things) that has not been selected for the presence of disease or abnormality. Normal Range,Normal Values,Reference Ranges,Normal Ranges,Normal Value,Range, Normal,Range, Reference,Ranges, Normal,Ranges, Reference,Reference Range,Reference Value,Value, Normal,Value, Reference,Values, Normal,Values, Reference
D003936 Diagnosis, Computer-Assisted Application of computer programs designed to assist the physician in solving a diagnostic problem. Computer-Assisted Diagnosis,Computer Assisted Diagnosis,Computer-Assisted Diagnoses,Diagnoses, Computer-Assisted,Diagnosis, Computer Assisted
D004867 Equipment Design Methods and patterns of fabricating machines and related hardware. Design, Equipment,Device Design,Medical Device Design,Design, Medical Device,Designs, Medical Device,Device Design, Medical,Device Designs, Medical,Medical Device Designs,Design, Device,Designs, Device,Designs, Equipment,Device Designs,Equipment Designs
D005260 Female Females
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000293 Adolescent A person 13 to 18 years of age. Adolescence,Youth,Adolescents,Adolescents, Female,Adolescents, Male,Teenagers,Teens,Adolescent, Female,Adolescent, Male,Female Adolescent,Female Adolescents,Male Adolescent,Male Adolescents,Teen,Teenager,Youths
D000328 Adult A person having attained full growth or maturity. Adults are of 19 through 44 years of age. For a person between 19 and 24 years of age, YOUNG ADULT is available. Adults
D000368 Aged A person 65 years of age or older. For a person older than 79 years, AGED, 80 AND OVER is available. Elderly

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