One day postoperatively , the mean flare value was statistically significantly lower in the HSM IOL group ( @ photons per millisecond -LSB- ph/ms -RSB- @ -LSB- SD -RSB- ) than in the uncoated IOL group ( mean @ @ ph/ms ) ( P = @ ) ; there was no statistically significant difference between groups @ and @ months postoperatively ( both P > @ ) .