单眼或双眼视力大幅度急剧下降,医学上称为急性视力障碍。此种情况,如能迅速作出准确诊断,及早采取相应措施,许多病例可以挽回视力,甚至彻底治愈。相反,误诊误治,则可造成不可逆转的永久性失明。其中有些病例有典型的眼红痛或外伤史,可明确诊断,而有些病例不红不痛,准确诊断就 Monocular or binocular vision decreased sharply, medically known as acute visual impairment. In such a situation, prompt diagnosis can be taken promptly and appropriate measures can be taken so that many cases can restore sight and even complete cure. On the contrary, misdiagnosis and mistreatment can cause irreversible permanent blindness. Some cases have a history of typical eye pain or trauma, can confirm the diagnosis, and some cases are not red, painless, accurate diagnosis