de Keizer R J, te Strake L
Doc Ophthalmol. 1986 Jan 15;61(3-4):281-4. doi: 10.1007/BF00142354.
The strong magnetic field of the super-conducting MRI (Magnetic Resonance Imaging) apparatus could cause problems in the presence of metallic foreign material, such as the metal clips and loops of intraocular lenses and steel as suturing material. If the magnetic field were to induce movement this could be dangerous for the eye. In this study these materials were tested with the 0.5 Tesla MRI and a 1.0 Tesla permanent magnet. Intraocular lenses with a platinum clip, or metallic or plastic loops, and 5 X 0/6 X 0 steelwire used as suturing material experienced no magnetic movement or change of position in the strong magnetic field. Neither did these foreign materials have any effect on the images obtained (spin-echo pulse sequence, 0.5 T Gyroscan). No artefacts were produced, the normal MRI picture of the T1-T2 calculated images, made with a special deticated eye surface coil, were obtained.
超导磁共振成像（MRI）设备的强磁场在存在金属异物时可能会引发问题，比如眼内晶状体的金属夹和环以及作为缝合材料的钢。如果磁场引发移动，这对眼睛可能是危险的。在本研究中，这些材料在0.5特斯拉的MRI和1.0特斯拉的永久磁体中进行了测试。带有铂夹、金属或塑料环的眼内晶状体以及用作缝合材料的5X0/6X0钢丝在强磁场中未出现磁性移动或位置变化。这些异物对所获得的图像（自旋回波脉冲序列，0.5T Gyroscan）也没有任何影响。未产生伪影，使用专门的眼表面线圈获得了T1-T2计算图像的正常MRI图像。
