遮しゃ眼がん子し

noun

occluder

Technical term in ophthalmology or optometry for a device that blocks vision in one eye, used during eye examinations or vision therapy.

• 検けん眼がんのとき、遮しゃ眼がん子しで片かた目めを隠かくします。

  During an eye exam, one eye is covered with an occluder.