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.