Fig. 1

Eyes, seven days after the intense focused ultrasound treatment. Several drop-like opacifications and rosette-like posterior subcapsular cataract (PSC) can be observed in the patient’s left eye, which were documented as acute cataract by slit-lamp photography. a Seven drop-like dense lens opacities were aligned and obliquely localized from the center of the lens to the perinucleus region (red arrows). Three lens sense opacities extended vertically to the posterior capsule (blue arrows) by slit-lamp photography. b Retro-illumination image of the patient’s left eye by a Casey Eye Institute camera system [4]. Rosette-shape PSC was observed. c d Anterior optical coherence tomography showing drop-like opacity (red arrows) in the patient’s lens (c) and PSC (yellow arrow) (d); the patient’s posterior capsule did not appear to be ruptured. e No lens opacity was observed in the patient’s right eye