魚眼 is read as ぎょがん (gyogan) and means fish eye.
ぎょがん
gyogan
ぎょがんせき
apophyllite
ぎょがんれんず
fisheye lens
あおめえそ
Chlorophthalmus albatrossis (species of greeneye)
めがねもちのうお
humphead wrasse (Cheilinus undulatus)
さかなつり
fishing
ぎょらい
torpedo
ななこおり
twill weave
ぎょえい
outline of a solitary fish (as seen through the water when fishing, etc.)
ぎょらいはっしゃかん
torpedo tube
にくがん
naked eye
め
(an) appearance
きんがん
nearsightedness