Should I get a PRK enhancement surgery? Worried about risks & recovery for possible minor improvement?

Surgery in 12/2014. 20/20 clearly out of my left eye (about -0.50) and 20/20 or 20/25 out of my right eye (about -1.00). My left eye's vision is up to par, but my right eye is a little weaker. When I wore contacts, my RE had worse vision than my LE. Surgeon told me he could improve RE, since it's small correction. My RE vision sometimes bothers me b/c I am finicky. Especially with night driving (could still drive fine at night, & unsure if it's the RE vision and not just general night driving).

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