Case report
An 83-year-old male patient, previously operated for bilateral vitrectomy and cataract, suffered a sudden right-eye vision loss, announced only by the shaded observation of a horizontal line. The patient was in excellent clinical condition and had no relevant comorbidities. The retinal fundus appeared regular. Brain CT-scan, supra-aortic trunks doppler-US, and blood tests, including ESR and CRP, were normal. An angio-MRI of the brain and orbits did not show significant abnormalities. The patient reported having occasionally seen something again from his right eye for a few seconds. Nonetheless, the hypothesis of ischemic optic neuropathy was formulated, also supported by literature and neurological consultation. Steroids, heparin and neuroprotectors were administered without benefit. Therefore, the patient was determined to perform further investigations. A refractometric test demonstrated partial vision recovery through a very high hyperopic correction. Following this finding, a more careful observation of the T2-weighted MRI sequences (Figure 1) showed an unexpected posterior dislocation of the right intraocular lens, with the capsular bag floating in the vitreous[1]. Finally, the patient underwent surgery to replace the lens, implanted in the anterior chamber, achieving vision recovery and reverting a condition deemed incurable.