Predictive value of OCT and MRI for postoperative visual recovery in patients with chiasmal compressive lesions

2022 ◽  
pp. 112067212110732
Author(s):  
Hyeshin Jeon ◽  
Hie Bum Suh ◽  
Tae Yeon Kim ◽  
Hee-young Choi
Keyword(s):  
Predictive Value ◽  
Magnetic Resonance Image ◽  
Retinal Thickness ◽  
Optic Chiasm ◽  
Mean Deviation ◽  
Visual Recovery ◽  
Vertical Meridian ◽  
Initial Visual Acuity ◽  
Cirrus Oct ◽  
Field Defect

Purpose We aimed to investigate the predictive value of retinal thickness measured by optical coherence tomography (OCT) and mass biometrics measured using magnetic resonance image (MRI) for visual recovery after surgery for removal of a mass compressing the optic chiasm. Methods Consecutive patients who showed typical temporal visual field defect (VFD) with respect to the vertical meridian due to a chiasmal compressive mass and who underwent mass removal surgery were recruited. Ophthalmic examination was performed preoperatively and postoperatively. Retinal thickness was measured by the Cirrus OCT. The height and size of the mass and suprasellar extension (SSE) in both the sagittal and coronal planes were evaluated. Patients were divided into two groups based on the improvement in VFD (mean deviation [MD] change ≥ 5 dB: group R; others: group NR) and clinical characteristics were compared. Results Fifteen patients were included in the study. Eight (53.3%) patients were allocated into group R and others (7 patients, 46.7%) into group NR. Age, sex, initial visual acuity, initial MD was not different between the two groups. The retinal thicknesses were not different while tumor height, volume, and both sagittal and coronal SSE were significantly different between the two groups. (p = 0.029, 0.014, <0.001, and <0.001, respectively) All MRI parameters showed significant predictive value for the degree of MD recovery. Conclusion MRI showed better predictive value than OCT in predicting postoperative VFD recovery in patients with temporal VFDs due to chiasmal compressive disorder.

scholarly journals Relationship between consecutive deterioration of mean deviation value and progression of visual field defect in open-angle glaucoma

2015 ◽  
pp. 2217 ◽  
Author(s):  
Tomoko Naito ◽  
Keiji Yoshikawa ◽  
Shiro Mizoue ◽  
Mami Nanno ◽  
Tairo Kimura ◽  
...  
Keyword(s):  
Visual Field ◽  
Visual Field Defect ◽  
Open Angle Glaucoma ◽  
Mean Deviation ◽  
Open Angle ◽  
Field Defect

scholarly journals Visual Recovery After Blindness From Pituitary Apoplexy

1990 ◽  
Vol 17 (1) ◽  
pp. 88-91 ◽  
Author(s):  
Andrew D. Parent
Keyword(s):  
Nervous Tissue ◽  
Visual Loss ◽  
Pituitary Apoplexy ◽  
Optic Chiasm ◽  
Acute Onset ◽  
Visual Recovery ◽  
Loss Of Function ◽  
Review Of The Literature ◽  
Central Nervous Tissue ◽  
Neurologic Function

ABSTRACT:In a series of 11 patients with classic pituitary apoplexy, two patients had the acute onset of bilateral blindness. After transsphenoidal decompressive surgery both patients had useful recovery of vision. Although impairment of neurologic function appears irreversible when central nervous tissue has been compressed to the point of total loss of function it would appear that the optic chiasm may be an exception to this experience. Our review of the literature and our experience suggests that decompression can be worthwhile even late in the course of this disease and visual loss should not be treated expectantly.

scholarly journals Chiasmal herniation following treatment of pituitary macroadenoma

Pituitary ◽  
2020 ◽  
Author(s):  
Marjolein Tabak ◽  
Iris C. M. Pelsma ◽  
Mark C. Kruit ◽  
Wouter R. van Furth ◽  
Nienke R. Biermasz ◽  
...  
Keyword(s):  
Tumour Size ◽  
Severity Index ◽  
Optic Chiasm ◽  
Added Value ◽  
Control Group ◽  
Mean Deviation ◽  
Pituitary Macroadenoma ◽  
Mri Findings ◽  
Before And After ◽  
Group 2

Abstract Purpose To evaluate whether the occurrence of chiasmal herniation coincides with visual field (VF) deterioration and to compare the course of VF defects in patients with and without radiological chiasmal herniation following treatment of pituitary adenoma. Methods This retrospective cohort study included 48 pituitary macroadenoma patients with chiasm compression, divided into three groups: Group 1 (N = 12), downward displaced optic chiasm and deteriorated VFs; Group 2 (N = 16), downward displaced optic chiasm; Group 3 (N = 20), control-group matched for tumour size and follow-up VFs, in mean deviation (dB). VFs were compared over time and a severity index, Chiasm Herniation Scale (CHS), for herniation based on radiological parameters was designed. Results After treatment, all groups showed improvement of VFs (Gr1: 2.97 dB p = 0.097, Gr2: 4.52 dB p = 0.001 and Gr3: 5.16 dB p = 0.000), followed by long-term gradual deterioration. The course of VFs between patients with and without herniation was not significantly different (p = 0.143), neither was there a difference in the course before and after herniation (p = 0.297). The median time till onset of herniation was 40 months (IQR 6 month-10 years) and did not significantly differ (p = 0.172) between the groups. There was no relation between VFs and the degree of herniation (p = 0.729). Conclusion Herniation does not appear to have clinical relevance with respect to VF outcome. The newly designed CHS is the first scoring system to quantify the severity of herniation and, in the absence of alternatives, may be useful to describe MRI findings to serve future added value in larger sized outcome studies.

REPRODUCIBILITY AND COMPARISON OF RETINAL THICKNESS AND VOLUME MEASUREMENTS IN NORMAL EYES DETERMINED WITH TWO DIFFERENT CIRRUS OCT SCANNING PROTOCOLS

Retina ◽  
2011 ◽  
Vol 31 (1) ◽  
pp. 41-47 ◽  
Author(s):  
Stefan Hagen ◽  
Ilse Krebs ◽  
Paulina Haas ◽  
Carl Glittenberg ◽  
Christiane I Falkner-Radler ◽  
...  
Keyword(s):  
Retinal Thickness ◽  
Cirrus Oct ◽  
Volume Measurements

scholarly journals Postoperative visual recovery following surgical treatment of suprasellar meningiomas

2012 ◽  
Vol 65 (7-8) ◽  
pp. 309-314
Author(s):  
Desanka Grkovic ◽  
Tatjana Bedov ◽  
Vladimir Canadanovic ◽  
Nikola Babic ◽  
Sava Barisic
Keyword(s):  
Visual Acuity ◽  
Optic Chiasm ◽  
Lower Number ◽  
Visual Recovery ◽  
Nerve Fibres ◽  
Mechanical Pressure ◽  
Irreversible Damage ◽  
Postoperative Visual Acuity ◽  
Visual Status ◽  
Ophthalmologic Examination

Introduction. The purpose of this study was to investigate pre- and postoperative visual acuity in patients with meningioma in the area of optic chiasm. Material and Methods. This retrospective study included 43 patients with meningioma in the area of optic chiasm, who had been found to have impaired visual function according to anamnestic data and neuro-ophthalmologic examination which excluded the presence of any other eye diseases. The visual status was analyzed both preoperatively and postoperatively, i.e. 10 days, one month and six months after surgery. Results. An improvement in visual acuity was recorded in 50% of the examined eyes (68.42% of patients), the most expressed changes being in terms of higher number of the eyes with normalized visual acuity and lower number of the eyes with severely reduced visual acuity after surgery. These changes were particularly prominent immediately after surgery, during the first ten days. Conclusion. The recovery of visual acuity after decompression in the area of optic chiasm is possible in cases where mechanical pressure on the nerve fibres and resulting fibre ischemia have not lasted long enough to lead to their irreversible damage.

Indirect, across-the-midline retinotectal projections and representation of ipsilateral visual field in superior colliculus of the cat

1978 ◽  
Vol 41 (2) ◽  
pp. 285-304 ◽  
Author(s):  
A. Antonini ◽  
G. Berlucchi ◽  
J. M. Sprague
Keyword(s):  
Visual Field ◽  
Receptive Field ◽  
Superior Colliculus ◽  
Visual Information ◽  
Receptive Fields ◽  
Optic Chiasm ◽  
Anterior Portion ◽  
Vertical Meridian ◽  
Contralateral Eye ◽  
Rostral Portion

1. In agreement with previous work, we have found that the ipsilateral visual field is represented in an extensive rostral portion--from one-third to one-half--of the superior colliculus (SC) of the cat. This representation is binocular. The SC representation of the ipsilateral visual field can be mediated both directly, by crossed retinotectal connections originating from temporal hemiretina, and indirectly, by across-the-midline connections relaying visual information from one-half of the brain to contralateral SC. 2. In order to study the indirect, across-the-midline visual input to the SC, we have recorded responses of SC neurons to visual stimuli presented to either the ipsilateral or the contralateral eye of cats with a midsagittal splitting of the optic chiasm. Units driven by the ipsilateral eye, presumably through the direct retinotectal input and/or corticotectal connections from ipsilateral visual cortex, were found throughout the SC, except at its caudal pole, which normally receives fibers from the extreme periphery of the contralateral nasal hemiretina. Units driven by the contralateral eye, undoubtedly through an indirect across-the-midline connection, were found only in the anterior portion of the SC, in which is normally represented the ipsilateral visual field. Receptive fields in both ipsilateral and contralateral eye had properties typical of SC receptive fields in cats with intact optic pathways. 3. All units having a receptive field in the contralateral eye had also a receptive field in the ipsilateral eye; for each of these units, the receptive fields in both eyes invariably abutted the vertical meridian of the visual field. The receptive field in one eye had about the same elevation relative to the horizontal meridian and the same vertical extension as the receptive field in the other eye; the two receptive fields of each binocular unit matched each other at the vertical meridian and formed a combined receptive field straddling the vertical midline of the horopter...

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