目光 vs 视线（近义词）

1)目光 means"eye-sight",e.g.目光炯炯(sparkling eyes)and:
2)目光 can also mean"experience and knowledge",e.g.目光如豆(of little experience and knowledge),and:
3)视线 cannot be so used either.
4)目光 and 视线 can both indicate an imagined straight line between the eye and the object looked at:
5)But in phrases like 挡住……视线 or 遮住……视线，meaning"block the eye-sight'",目光is rarely used.
6)视线 can also be used metaphorically to mean "attention”,mostly in转移视线(divert one's attention).