The chairs are designed to optimally position patients during ophthalmic or laryngological examinations. Both chairs have possibility of left and right 90° seat rotation in relation to the base. In the chair FO-02 the seat height is adjusted by a foot operated hydraulic pump and the back rest inclination is supported by gas springs with locking mechanism. In the chair FL-02 the seat height and the back rest inclination are adjusted by electric actuators from a foot operated controller. Hand rests of the chairs FO-02 and FL-02 are deflectable and can be easily disassembled.