What's the difference between euphrasy and eyebright?

Euphrasy

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Definition:

• (n.) The plant eyesight (euphrasia officionalis), formerly regarded as beneficial in disorders of the eyes.

Example Sentences:

Eyebright

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Definition:

• (n.) A small annual plant (Euphrasia officinalis), formerly much used as a remedy for diseases of the eye.

Example Sentences:

• (1) A passenger resembling Ian, with a flat cap and a John Lennon moustache, snaps mobile phone photos of terraces lining the quarry walls, veritable hanging gardens with horsetail and eyebright.