optical
adj. 眼睛的，视觉的，光学的
 
例句与用法：
1.I thought I saw a ghost but it was just an optical illusion.
我以为我看见鬼了，其实只是一种幻觉。

2.They concentrated on better definition of the optical image.
他们致力於提高该光学影像的鲜明度。

3.A mirage is an optical illusion.
海市蜃楼是一种视错觉。

4.The optical system of the eye stimulate cell of the retina.
眼睛的视觉系统刺激视网膜内的细胞。

5.Microscopes and telescopes are optical instruments.
望远镜和显微镜是光学仪器。

【词形变化】
副词: optically

英英解释：形容词 optical:1.relating to or using sight
同义词：ocular, optic, visual
2.of or relating to or involving light or optics
3.of or relating to or resembling the eye
同义词：ocular, optic, opthalmic
本刊例句：
It comprises host computer, infrared ray optical instrument positioning system, foot treadle control plate and navigation

software.