[Device for determining the critical frequency for flicker fusion].
D005221:Fatigue / Q000175:diagnosis*; D005425:Flicker Fusion; D006801:Humans; D008403:Mass Screening / Q000295:instrumentation*; D009784:Occupational Diseases / Q000175:diagnosis*; D009885:Ophthalmology / Q000295:instrumentation*
Ustroĭstvo dlia opredeleniia kriticheskoĭ chastoty sliianiia mel'kaniĭ.