眼与耳鼻喉及口腔相毗邻,因此,扁桃体炎、副鼻窦炎、口腔炎、龋齿、牙周炎及齿槽肿胀等慢性炎症性疾病,均可作为内源性感染病灶,其致病的细菌、病毒、真菌等微生物或寄生虫,也可同时是眼部疾病的致病因子。眼睛的血管与全身血管相通,某些传染性疾病也可影响眼睛,伤风流感的病毒可诱发病毒性结膜炎和角膜炎,其他如败血症、麻风、结核、霉菌病均可影响眼睛。通过眼底检查,可以直接观察到视网膜血管的情况,对了解和判断全身血液循环系统的状态,具有很重要的意义,如通过眼底检查,对高血压及血管硬化患者的全身血管系统情况,有重要的参考价值,且可判断预后。从胚胎发育过程来看,眼睛和中枢神经系统关系更为密切。常见 Eye and ENT and the oral cavity adjacent, therefore, tonsillitis, sinusitis, stomatitis, dental caries, periodontitis and alveolar swelling and other chronic inflammatory diseases, can be used as an endogenous infection, the pathogenic bacteria , Viruses, fungi and other microorganisms or parasites, but also can be both eye disease risk factor. Eye blood vessels and the body communicate with each other, some infectious diseases can also affect the eyes, the virus can be caused by the influenza virus can cause viral conjunctivitis and keratitis, others such as sepsis, leprosy, tuberculosis, mycosis can affect the eyes. Through the fundus examination, retinal blood vessels can be directly observed, to understand and judge the state of the systemic blood circulation system, is of great significance, such as through the fundus examination, hypertension and vascular sclerosis patients with systemic vascular system situation, it is important The reference value, and can determine the prognosis. From the embryonic development process, the eyes and the central nervous system more closely. common