Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Factors contributing to normal-tension glaucoma (NTG). BP, blood pressure; RVP, retinal venous pressure; OPP, ocular perfusion pressure; OBF, ocular blood flow; ET-1, endothelin-1; RGC, retinal ganglion cell; OSAHS, obstructive sleep apnea/hypopnea syndrome; IOP, intraocular pressure; ONH, optic nerve head; LC, lamina cribrosa.
