Doctor's Notes on What Is Normal-Tension Glaucoma (NTG)?
Normal Tension glaucoma (NTG) is a loss of vision even though the pressure inside the eye is normal or low. Other than the gradual loss of vision in the eye, there are no signs or symptoms.
The cause of normal-tension glaucoma is likely optic nerve damage despite normal or low eye pressure. The disease may run in families and be inherited, with risk factors of anatomic abnormalities where the optic nerve crosses bone or by irregularities in blood flow to the optic nerve. Associated risk factors include
Kasper, D.L., et al., eds. Harrison's Principles of Internal Medicine, 19th Ed. United States: McGraw-Hill Education, 2015.