Congested nipples

Japanese: 鬱血乳頭 - うっけつにゅうとう

…Vision [Minami Hisabin] [Mizuno Noboru]
[Optic nerve disease]
The main diseases of the optic nerve include papilledema, optic neuritis, and optic atrophy. (1) Papilledema is a passive, non-inflammatory swelling of the optic optic nerve caused by some cause. When caused by increased intracranial pressure due to a brain tumor, it is called a choked disc. When examined with an ophthalmoscope, the optic optic nerve is found to be red and swollen.

From [Brain Tumor]

…It is like a passenger called a brain tumor forcing its way into a crowded train. Symptoms of increased intracranial pressure include headache, nausea, vomiting, and optic nerve congestion. A optic nerve congestion occurs when the optic nerve at the back of the eye swells due to high intracranial pressure, making it difficult to see. …

*Some of the terminology that refers to "engorged nipples" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

…視覚【南波久斌】【水野昇】
［視神経の病気］
　視神経の病気のおもなものには，乳頭浮腫，視神経炎，視神経萎縮などがある。(1)乳頭浮腫papilledema　なんらかの原因によって生じた乳頭の受動的な非炎症性の浮腫であり，脳腫瘍などで頭蓋内圧亢進により起こるものは，とくに鬱血（うつけつ）乳頭choked discと呼ばれる。検眼鏡で検査すると，乳頭が発赤し，はれていることが認められる。…