Inclusion Criteria:  Adult patient Indication for total nephrectomy for kidney cancer decided with a multidisciplinary oncology consultation Kidney scan images available Patient affiliated to French national health insurance Patient who has given oral consent  Exclusion Criteria:  Pregnant woman Ophthalmologic history (macular vascular or degenerative diseases, epiretinal membranes, glaucoma) Cannot sit still for 60 minutes Metastatic cancer Thrombosis of the renal vein Single functional kidney before nephrectomy Estimated Glomerular Filtration Flow Rate (CKD-EPI formula) less than 60 mL/min/1.73m2 Diabetes type 1 or type 2 Proteinuria at inclusion (or in the 3 months prior to inclusion) on sample with a protein/creatinuria ratio greater than 1g/g or over 24 hours greater than 1g/day HIV, HCV or HBV positive serology Patient subject to a measure of legal protection (guardianship, curatorship, etc.)  SECONDARY EXCLUSION CRITERIA  Patient with increased pressure during the measurement of the intraocular pressure before dilation Patient with histological abnormalities suggestive of nephropathy (excluding nephroangiosclerosis) in the pathological analysis of the nephrectomy sample