羞明

1. Origins, structure, and basic meaning

• Structure: 羞明, read しゅうめい, is a term for sensitivity that makes light feel dazzling and uncomfortable.
• Basic usage: In 強い羞明があるため、診察室の照明を落としてもらった。, the examination-room lights were dimmed for the person because of severe light sensitivity.

2. Common pitfalls and similar expressions

• Everyday and technical wording
  • まぶしい is an everyday way to say that light feels dazzling. 羞明 is a technical noun for the symptom.
• Similar sounds
  • Distinguish しゅうめい for 羞明 from しょうめい for 照明. In the example, the first is the symptom and the second is the room lighting.