应注重相干光断层成像术在视神经疾病诊断中的作用

Pay attention on optical coherence tomography evaluation for optic nerve diseases

相干光断层成像术（OCT）是目前眼科影像学中一项重要的检查项目，其可对视网膜神经纤维层和视网膜神经节细胞层进行准确分层和定量分析，对深入了解视神经疾病所致的神经元和轴突丢失具有重要诊断价值，同时其还能鉴别诊断青光眼和黄斑疾病。通过阐述和点评OCT在视神经疾病诊断中的作用、在鉴别诊断中的价值、使用中的关键点以及en face OCT和OCT血流成像的应用特点，提出在视神经疾病的临床诊疗工作中应注重OCT检查。

Optical coherence tomography（OCT） had become the most important imaging technique in ophthalmology. OCT is able to segment the retinal nerve fiber layer and retinal ganglion cell layer accurately. Quantitative analysis can be performed for both layers. OCT is very important to evaluate the neuron and axon loss in optic nerve diseases diagnosis. Meanwhile, OCT has great value for differentiating glaucoma and macular diseases from optic nerve diseases. This review presented OCT application in optic nerve diseases diagnosis, differentiation diagnosis, the key points in use and the features of en face OCT and OCT angiography. It gave us suggestions that it should be pay more attention to OCT examination in diagnosis and treatment of optic nerve diseases.