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Updated: Jul 30, 2026
Application of Design Aspects in Uniaxial Loading Machine Development
Published on: September 19, 2018
A computerised adaptometer
C E Krakau1, S Lindberg, U Havelius
1University Eye Clinic, Malmö, Sweden.
Purpose:
The design of an automatic instrument for the estimation of subjective dark adaptation (minimum perceptible for light) by an uninterrupted chain of trials.
Methods:
A light emitting diode is used as test light. The patient answers by pressing a button when light is perceived. The process is controlled by means of a lap top computer and traces the adaptation course step by step.
Results:
The instrument was tested by recording the course of dark adaptation (DA) in a clinical series of normals and of patients. The threshold sensitivity (after 25 min in darkness) showed very satisfying reproducibility.
Conclusion:
The instrument described was found to be reliable and well suited for clinical routine as well as experimental work.
