眼球

1. Origins, structure, and basic meaning

• Structure: 眼球 is read as がんきゅう and means “eyeball”.
• Basic usage: The examples show eyeball anatomy explained with a model and movement checked in an examination.

2. Common pitfalls and similar expressions

• Distinguishing senses and uses
  • It is the anatomical eyeball itself and is narrower than everyday 目, which can encompass the eye and surrounding area.