Assertion: high grade eyepiece | /r/HasProperty | useful
Facets:
value: for microscopists
type: TRANSITIVE-OBJECT
value: especially
type: DEGREE
Source sentences:
text: We should mention that high-eyepoint eyepieces are especially useful for microscopists who wear eyeglasses to correct for near or far sightedness, but they do not correct for several other visual defects, such as astigmatism.