Color Doppler imaging of the ocular and orbital blood vessels

Aburn, Neil S.; Sergott, Robert C.

doi:10.1097/00055735-199304060-00002

Cited by 4 publications

(4 citation statements)

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“…This retrograde flow leads to further exacerbation of ocular ischemia by further reducing retrobulbar blood flow due to the vascular steal phenomenon. 6 , 7 , 8 Decreased vision and pain due to increased IOP may occur in ocular ischemia. In some cases, these symptoms may be the first clinical signs of CAS.…”

Section: Discussionmentioning

confidence: 99%

Intraocular Pressure and Retinal Nerve Fibre Layer Thickness Changes After Carotid Artery Stenting

Biberoglu

Eraslan

Baltacıoğlu

et al. 2017

tjo

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Objectives:The aim of this study was to evaluate intraocular pressure (IOP) and retinal nerve fiber layer (RNFL) changes in patients with carotid artery stenosis (CAS) after carotid artery stenting.Materials and Methods:This study was conducted as a cross-sectional, non-randomised clinical case series. Fifteen male patients (mean age: 63.6±9.1) with CAS and more than 70% carotid artery narrowing were included. All of the patients were followed in the department of neurology and were operated in the interventional radiology division. Eighteen healthy male subjects (mean age: 63.7±5.3) were included in the control group. All of the healthy subjects had a detailed ophthalmological examination and subjects with any chronic eye disease were excluded from the study. All of the participants had a detailed ophthalmological examination including tonometry using Goldmann applanation tonometry and RNFL analysis using optical coherence tomography (RTVue-100 5.1).Results:There were no ocular ischemic symptoms in any of the participants. The mean IOP value was 15.1±2.1 mmHg in the control group and 16.6±2.4 mmHg before stent implantation, 16.4±2.2 mmHg at 1 week after implantation, 16.6±2.5 mmHg at 1 month after implantation, and 16.7±2.9 mmHg at 3 months after implantation in the CAS group. Mean RNFL thickness was 105±6 µm in the control group; in the CAS group, mean RNFL thickness values were 98±27 µm before stent implantation and 103±11 µm, 101±10 µm, and 101±11 µm at 1 week, 1 month, and 3 months after stenting. There were no significant differences between the CAS group and control group regarding IOP and RNFL thickness values (p>0.05). IOP and RNFL thickness also did not show any statistically significant changes from preoperative measurements in 3 months postoperative follow-up in the CAS group (p>0.05).Conclusion:IOP and RNFL thickness remained unchanged after carotid stent implantation in carotid artery stenosis patients with no signs of ocular ischemic syndrome.

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Section: Discussionmentioning

confidence: 99%

Intraocular Pressure and Retinal Nerve Fibre Layer Thickness Changes After Carotid Artery Stenting

Biberoglu

Eraslan

Baltacıoğlu

et al. 2017

tjo

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“…The parameters evaluated were maximum recorded IOP, IOP at the time of visit, visual field mean deviation (MD) and pattern standard deviation (PSD), OBF pulsatile flow (µL/sec), and CDI values (PSV, EDV, RI) for all four arteries examined (24)(25)(26)(27). All parameters were matched with the healthy fellow eye data.…”

Section: Methodsmentioning

confidence: 99%

Ocular Blood Flow Evaluation in Injured and Healthy Fellow Eyes

Martini

Guiducci

Campi

et al. 2005

European Journal of Ophthalmology

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Long-term follow-up (mean 39+/-12 months) of injured eyes shows, besides a slight but significant increase of IOP, a very significant impairment of ocular blood supply to injured eyes compared to healthy fellow eyes with reduction of pulsatile ocular blood flow and marked increase of resistance to flow in all retrobulbar vessels. These anomalies may be considered an independent risk factor to develop traumatic glaucoma.

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“…Therefore, a clear picture of the retrobulbar vasculature is very important for the diagnosis to several sight threatening diseases, such as ocular ischemic syndrome , central retinal artery occlusion , and diabetic retinopathy . To date, there has not been a medical imaging modality that can provide satisfying results for viewing these vessels: CT and digital subtraction angiography (DSA) is limited by radiation exposure and lack of reference anatomic structures ; Doppler ultrasound is operator dependent and only works with the largest OA ; optical coherence tomography (OCT) and Heidelberg retinal tomography (HRT) have very limited penetration and cannot image vessels behind the eyeballs . High resolution MR angiography (MRA) has great potential with benefits of high resolution, full field of view and noninvasiveness, and is currently the most widely used angiography imaging modality.…”

Section: Introductionmentioning

confidence: 99%