An MRI compatible visual system, wherein the MRI compatible visual system comprises:
- a head coil, the head coil being adapted to surround a patient's head;
- an adjustment mechanism comprising a coil attachment part mounted onto the outside of the head coil, a first extended member connected to the attachment part with friction link in a first joint, a second extended member connected to the first member with friction link in a second joint or joints where the second joint is at the opposite end of the first joint, and the second extended member is at its end opposite of the second joint or joints also connected to a housing with friction link in a third joint, wherein each joint is hinged to allow rotation of the joints, and where a longitudinal direction of the housing stretches from the first joint to a distal end of the housing;
- said housing further comprising:
- an adjusting knob positioned at the top of the housing adjacent to the third joint, the adjustment knob being fixed to one end of a shaft inside the housing and the shaft is at the other end fixed to a small Faraday cage inside the housing enabling a linear movement of the Faraday cage in the longitudinal direction of the housing;
- the Faraday cage contains a micro display chip for receiving video or picture image signals from an external source, and the micro display chip converts a video or picture image signal to a visible image on a small screen so as to provide high resolution images to patients positioned in the magnetic resonance imaging (MRI) device;
- the Faraday cage comprises a shielded window positioned below the micro display ship closer to the distal end of the housing wherein the shielded window is covered by wires or a mesh of metal that keeps a shielding function intact,
- a connection to a shielded cable connected to the small Faradays cage inside the housing;
- a beam splitter adjacent to the Faraday cage and closer to the distal end of the housing than the Faraday cage, wherein the beam splitter enables an image of a patient eye to be fed into the end of a coherent image guide;
- optical elements adjacent to the beam splitter and closer to the distal end of the housing where the optical elements adjustably enlarge the image from the micro display chip;
- and
- a pupil distance adjustment mechanism provided by pupil adjustment knobs fixed to a shaft, wherein the adjustment knobs located on the outside of the housing proximate to the third joint, the shaft can rotate inside a mid section of the part of the housing close to the third joint, the movement of the housing is fixed in the longitudinal direction of the housing with two bolts, the shaft is threaded with opposite threads on each side of the mid section, and turning the shaft gives a linear movement of the housings in the longitudinal direction of the housing.