Request For Quotation Medical Products (Sivtsev Table).

Table For Determining Visual Acuity (Sivtseva). The Sivtsev Table Is A Table That Is Used To Determine A Person’S Visual Acuity. The Table Contains 12 Lines Of Printed Letters, Their Size In Each Line Decreases From Top To Bottom, Only Seven Letters Are Used - Ш, Б, М, Н, К, Ы, И. On The Left Of Each Line The Distance D (In Meters) Is Indicated From 50 (Top Line) To 2.5 (Bottom Line). On The Right Of Each Line, Visual Acuity V (Arbitrary Units) Is Indicated When Reading Letters From 5 Meters (From 0.1 To 2.0). For Normal Vision, A Person Must See Every Letter Of The 10Th Line From Five Meters. The Formula For Calculating Visual Acuity: V = D/D, Where - V - Visual Acuity - D - The Distance From Which The Letters Are Viewed - D - The Distance At Which The Eye Sees The Readable Row. The Size Of The Letters On The First Line Should Be 70 Mm, The Size Of The Letters On The Bottom Line Should Be 3.5 Mm. Material: Pvc Plastic 3Mm. Method: Uv Printing, This Is Not Film! Size: 297X479 Mm, In Protective Film On Both Sides. Mount Included! Operating Instructions.