Painless and progressive, cataracts slowly cloud the lens. The first symptom of cataracts is often decreased night vision. The light distortion caused by cataracts also frequently produces halos around lights -- again, mostly at night. Blurry vision is also common.
sonata form. n. Music. A form of a movement consisting of three sections, the exposition, development, and recapitulation, often followed by a coda.
Sonata Rondo: R is usually i, iii, IV, or vi in major -- I, iv, or VI in minor. Part C is the same length as A-B-A combined. May be derived from Parts A or B. May have a coda. A-B-A usually forms a cohesive structure like a rounded binary.