invisible cataract

purpose: to report two cases of oil-drop cataract and the description of this entity. patients and findings: two women (one 46 and the other 56 years-old) presented with gradual visual loss. previous studies including ct scan, mri, vep and erg were normal. with the use of simple diagnostic tests including a multiple pinhole occluder and use of visuscope, a diagnosis of oil-drop cataract was made in both cases. conclusion: in cases with progressive visual acuity loss without definite etiology, negative rapd and normal color vision, oil-drop cataract should be considered as a possibility. visuscope and multiple pinholes are effective methods for confirming the diagnosis.