Assertion: laser | /r/Causes | serious damage
Facets:
value: to the retina
type: TRANSITIVE-OBJECT
value: without optical instrument enhancement
type: OTHER
Source sentences:
text: Lasers in this class are mostly dangerous in combination with optical instruments which change the beam diameter or power density, though even without optical instrument enhancement direct contact with the eye for over two minutes may cause serious damage to the retina.