The retrobulbar optic nerve sheath diameter in adults with normal intracranial pressure measured by ultrasonography
LI Zhen1, ZHANG Xu-xiang1, YANG Hui-qing1, ZHAO Li-ping1, SUN Fei2, LIU Da-chuan1
Ophthalmology in China . 2014, (5): 347 -350 .  DOI: 10.13281/j.cnki.issn.1004-4469.2014.05.016