“…In these cases, the IOP increases to a high degree. 10 However, in cases with normal vein outflow, it is considered rare for IOP to exceed 35 mmHg even if the upper scleral venous pressure increases to 20 mmHg. In the present study, patients with glaucoma were excluded, and it was assumed that patients had a normal facility for outflow; none of the patients showed an IOP of 35 mmHg or higher.…”