Objective To observe the results of function MRI and perimetry in patients with visual pathway diseases. Methods Three patients (6 eyes) with pituitary adenoma and craniopharyngioma diagnosed via pathological examination and three healthy volunteers aged from 24 to 30 were collected. The best corrected visual acuity was non-light perception-1. 0 in the 6 sick eyes and 1. 0 in the healthy eyes;all the involved individuals had no other ocular diseases except myopia and without any contraindications of MRI. Common tests including the best visual acuity, fundus test by direct or indirect ophthalmoscope, center static visual field tested by Octopus 101 perimeter, program 32, tendency oriented perimetry were performed. The visual stimulation subtended a field of view of about 12 degrees,consisted of high contrast and drifting checkerboards. MRI parameters: GE signa VH/i 3. 0T scanner. Functional data: GRE-EPI sequence, 20 slices lying perpendicular to the calcarine sulcus. Anatomical data was obtained using 3DSPGR sequence to acquire high resolution. The cortical surface was unfolded and then cut and inflated. Functional data was presented to the inflated surface and subsequently analyzed by AFNI software. Results In six eyes, three had temporal defects, two had upper temporal visual field defects, and the other one did not finish the visual field test. The retinotopic representations of health adults were obtained by using the phase-encoded visual stimulation. The Eccentricity coordinate maps showed that foveal representations lay in the occipital poles and the representations appeared further anterior as eccentricity increased. The polar angle coordinate maps showed that early retinotopically organized areas had a representation of visual field. The visual cortex beneath the calcarine sulcus matched with the upper visual field of the opposite side and which upon the calcarine sulcus matched with the under visual field of the opposite side. Less or no visual cortex response was revealed in the patients' function MRI or the response in injury side was vanished. The visual cortex response related with the visual field defects could not be induced in function MRI. Conclusion There is a good correlation between function MRI data and the results of perimetric evaluation. The function MRI can show the visual cortex response correlated with the visual field defects of the patients with visual pathway diseases.

Objective To investigate the etiological features and visual outcomes of endogenous endophthalmitis (EE).Methods A retrospective consecutive case series of 19 patients (23 eyes) presenting with presumed EE from 2009 to 2016 in the Ophthalmology Department of Zhongshan Hospital and Huashan Hospital,Fudan University were included.Patients' medical history (main risk factors),microbial culture results,treatment regimen and visual outcomes were evaluated.Results In total,19 patients (23 eyes) were identified,including 7 female (8 eyes) and 12 male (15 eyes).Mean age was 54.0 ±17.9,ranging from 24 to 85.Most patients had severe underlying diseases,mainly diabetic mellitus (9/19) and liver abscess (8/19).Twenty vitreous samples from 17 cases were cultured,and 12 eyes from 10 cases were positive with a positive rate of 12/20.Fifteen cases had blood or body fluids cultures and 10 were positive,with the positivity rate of 10/15.Candida albicans (5/6) was the most common pathogen isolated in fungal endophthalmitis,and Klebsiella pneumonia (7/13) was the most common pathogen in bacterial endophthalmitis.Patients mainly received vitrectomy,intravitreal injection,and systemic/local antibiotic therapy.Only five eyes had improved visual acuities,and 6 eyes were enucleated or eviscerated.Among the 10 eyes from 8 cases who were treated within one week after onset,5 eyes from 3 cases (5/10) had improved visual acuities;one eye from one case had no visual improvement;four eyes from four cases had no light perception or enucleated.No improved visual acuity occurred in patients who were treated after one week.Conclusions Although the incidence is low,EE has poor visual outcomes.Timely diagnosis and treatment may be helpful to maximize the recovery of vision.

Evoked Potentials ; Humans ; Magnetic Resonance Imaging ; methods ; Optic Neuritis ; diagnosis ; Retrospective Studies