Fig. 1

Preoperative fundus pictures, optical coherence tomography (OCT) images and electroretinogram (ERG) readings of patients I. a Montage fundus pictures of the right eye showing large schitic cavity inferotemporally with cystoid spaces seen superotemporally and temporally sparing the posterior pole. Note the inferior arcade being dragged down. b Montage fundus pictures of the left eye showing shallow retinal detachment involving the macula with bullous schisis seen inferotemporally and inferiorly. c OCT image of the right eye (horizontal scan) near the lower arcade showing preretinal traction (blue arrow) due to fibrosis and grossly distorted retina with large schitic spaces. Note strands of retinal tissues bridging between the inner retina and thinned outer retinal layer adjacent to retinal pigment epithelium (red arrow). A small epiretinal membrane is seen in front of the retina (white arrow). d Horizontal OCT image of the left eye showing full thickness and retinal detachment involving the fovea (yellow arrow). Note the lack of strands extending between the detached retina and retinal pigment epithelium unlike in schisis. e ERG of both eyes showing classical negative waveform due to grossly reduced or absent b-wave amplitude