case_images: PMC6050812_01
case_images: Visible engorged and dilated scleral blood vessels on the right eye (black
  arrow).
case_images: 10.1177_2515841418788303-fig1.jpg
case_images: PMC6050812_01_10.1177_2515841418788303-fig1.jpg
case_images: fig1-2515841418788303
case_images: A 66-year-old patient presented in the eye casualty at North Devon District Hospital (Barnstaple, UK) in January 2016, referred from her general practitioner complaining of bilateral red eyes for about 3 weeks (Figures 1 and 2), diagnosed and treated presumptively as conjunctivitis, which was found to be nonresponsive to chloramphenicol 0.5% drops.
case_images: Superiorly visible engorged and dilated scleral blood vessels on the right
  eye (black arrows).
case_images: 10.1177_2515841418788303-fig2.jpg
case_images: PMC6050812_01_10.1177_2515841418788303-fig2.jpg
case_images: fig2-2515841418788303
case_images: A 66-year-old patient presented in the eye casualty at North Devon District Hospital (Barnstaple, UK) in January 2016, referred from her general practitioner complaining of bilateral red eyes for about 3 weeks (Figures 1 and 2), diagnosed and treated presumptively as conjunctivitis, which was found to be nonresponsive to chloramphenicol 0.5% drops.
case_images: Dilated superior ophthalmic vein visible on the right eye scan (orange
  arrow).
case_images: 10.1177_2515841418788303-fig3.jpg
case_images: PMC6050812_01_10.1177_2515841418788303-fig3.jpg
case_images: fig3-2515841418788303
case_images: A B-scan was performed which showed dilated superior ophthalmic veins bilaterally (Figures 3 and 4) which prompted an urgent magnetic resonance imaging (MRI) head scan to be carried out.
case_images: Dilated superior ophthalmic vein visible on the left eye scan (orange
  arrow).
case_images: 10.1177_2515841418788303-fig4.jpg
case_images: PMC6050812_01_10.1177_2515841418788303-fig4.jpg
case_images: fig4-2515841418788303
case_images: A B-scan was performed which showed dilated superior ophthalmic veins bilaterally (Figures 3 and 4) which prompted an urgent magnetic resonance imaging (MRI) head scan to be carried out.
case_images: Computed tomography angiogram (CTA) image showing moderately dilated superior
  ophthalmic vein on the right side (yellow star) and a more marked dilated
  superior ophthalmic vein on the left side (orange arrow).
case_images: 10.1177_2515841418788303-fig5.jpg
case_images: PMC6050812_01_10.1177_2515841418788303-fig5.jpg
case_images: fig5-2515841418788303
case_images: The CTA scan showed signs of bilateral CCF along with dilated superior ophthalmic veins on both sides (Figures 5 and 6).
case_images: Computed tomography angiogram (CTA) images showing prominent superior
  ophthalmic veins on the right side (yellow stars) and tortuously dilated
  superior ophthalmic veins on the left side (orange arrows).
case_images: 10.1177_2515841418788303-fig6.jpg
case_images: PMC6050812_01_10.1177_2515841418788303-fig6.jpg
case_images: fig6-2515841418788303
case_images: The CTA scan showed signs of bilateral CCF along with dilated superior ophthalmic veins on both sides (Figures 5 and 6).
case_images: Carotid angiogram lateral view showing CCF with a dilated left side superior
  ophthalmic vein (arrow).
case_images: 10.1177_2515841418788303-fig7.jpg
case_images: PMC6050812_01_10.1177_2515841418788303-fig7.jpg
case_images: fig7-2515841418788303
case_images: A further carotid angiogram confirmed bilateral CCF with a markedly dilated superior ophthalmic vein on the left side (Figure 7).