https://news.ycombinator.com/item?id=32905122
\> MONOCULAR O Ꙩꙩ, BINOCULAR O Ꙫꙫ, DOUBLE MONOCULAR O Ꙭꙭ, and MULTIOCULAR O ꙮ are used in words which are based on the root for ‘eye’. The first is used when the wordform is singular, as ꙩкꙩ; the second and third are used in the root for ‘eye’ when the wordform is dual, as ꙫчи, ꙭчи; and the last in the epithet ‘many-eyed’ as in серафими многоꙮчитїй ‘many-eyed seraphim’. It has no upper-case form.
我寻思 Ꙫ 形状上不就是重瞳吗,汉语体系里就没留下这么好玩的符号