Colour-Vision Disturbances in Patients with Paroxysmal Supraventricular Tachycardia
Schröder A.1, Schulz U.1, Meyer M.1, Rüfer F.1, Tebbenjohanns J.2, Erb C.1
1Department of Ophthalmology, 2Department of Cardiology, Medizinische Hochschule Hannover
Purpose: In view of the generally impaired blood perfusion in patients with paroxysmal supraventricular tachycardia, we investigated their colour perception.
Method: Thirty-six patients with paroxysmal supraventricular tachycardia were included and devided into three groups: Group 1: patients without medication (n = 15; mean age ± standard deviation = 38 ± 17 years), group 2: patients with beta blocker (n = 15; mean age ± standard deviation = 49 ± 10 years), group 3: patients with other medication - no beta blocker ( n = 6; mean age ± standard deviation = 52 ± 15 years). The control groups 4, 5, 6 without ophthalmological and systemic diseases corresponded to the patients groups 1, 2, 3 in number, age and sex. Beside the ophthalmological examinations (visual acuity, refraction, intraocular pressure, slit lamp and fundus examination) the colour-vision was tested by the colour-arrangement test Roth 28-hue (E) desaturated monocularly under standard conditions: The background used was black cardboard, illuminated by two Osram fluorescent lamps (L36W/12LDL Daylight) providing 2000 lux at the test table.
Results: Ophthalmological examination in all subjects was without pathological findings. The patients with paroxysmal suprave
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