Are corneal opacities the same as having dystrophy?

Corneal opacities: No. Corneal dystrophy is just one (quite rare) cause of a corneal opacity. Other causes include: various infections (especially, herpes), contact lens wear, corneal abrasions from foreign bodies, certain kinds of allergies (keratoconjunctivitis sicca), and excess desiccation (as occurs in people with eyelid paralysis and can't close them).

No: Anything causing a deposit anywhere on the cornea is termed an opacity - most due to a specific injury such as a foreign body or ulcer of the cornea after healing. Corneal dystrophy is more generalized throughout the cornea affecting one or another layer, some inherited and others like the condition fuch's, which is acquired. See your corneal specialist ophthalmologist to sort this out.