drastic reduction in intraocular pressure (IOP) (ie, more than 10mmHg) changed the choroidal thickness. However, it has not been clear whether the smaller change in IOP after cataract surgery can affect the choroidal thickness. In the subjects included in our study, themean (SD) change in IOP from baseline to 3 months postoperatively was only 0.59 (2.19) mm Hg. As for blood pressure, we do not consider the change in blood pressure of each subject during 6 months significant. Recently, another group of researchers reported similar results, supporting our conclusion. In the future we need to address how long the increase in choroidal thickness remains after cataract surgery.