A court violates § 17-8-57 if its charge to the jury "assumes certain things as facts and intimates to the jury what the judge believes the evidence to be." Gonzalez v.State, 306 Ga App. 887, 889 (2010). Icenhour argues the trial court here committed such an error by instructing the jury "that the loss of an eye . . . is the rendering of his body useless within the meaning of [O.C.G.A. § 16-5-24]," and "that blurred vision is evidence that an eye has been rendered useless."