preocular
1. Keywords preocular tear film;tear volume;contact lens;water content;
泪膜;泪液量;接触镜;含水量;
2. preocular antennae
眼前触角
3. Slit lmp microscope is an ophthalmologic opticalinstrument used to check preocular optical magnification .
裂隙灯显微镜是借助光学放大原理,检查眼前部和眼内部的眼科光学仪器。