Foreword: Lesson learned in retinal vascular diseasesForeword: Retina and choroidal vascular diseases of the eye: Exploring pathways of sight and beyondSection I: Basics of retinal and choroidal vasculature1. Development and physiologyMatthieu Poireir and Jay Chhablani2. Animal modelsBurak Turgut3. Vascular changes with agingDmitrii S. Maltsev and Alexey N. KulikovSection II: Imaging4. Fundus photographyXinyuan Zhang5. Fluorescein angiographyFederico Ricardi, Michele Reibaldi, Francesco Bandello and Enrico Borrelli6. Widefield indocyanine green angiographyJiwon Baek7. Optical coherence tomographyJorge Ruiz-Medrano, Rosa Gutierrez-Bonet and Jose¿ M. Ruiz-Moreno8. Optical coherence tomography angiographyMarco Lupidi, Alessio Muzi and Cesare Mariotti9. OximetryJakob Grauslund, Anna Stage Vergmann and Søren Leer Blindbæk10. Widefield imaging of the peripheral retinaNiveditha Pattathil, Samantha Orr, Jay Chhablani and Netan Choudhry11. Upcoming invasive and noninvasive imaging modalitiesJulia Fallon, Sofia Ahsanuddin, Nilesh Raval, Toco Chui and Richard RosenSection III: Retinal vascular diseases12. Central retinal vein occlusionSara Labay-Tejado, Covadonga Menendez-Acebal, Carolina Bernal-Morales, Socorro Alforja and Javier Zarranz-Ventura13. Branch retinal vein occlusionLaurentino Biccas Neto, Fernando M. Penha, Michel Pacques and Ricardo Leitao Guerra14. Central retinal artery occlusionRamesh Venkatesh, Rubble Mangla, Nikitha Gurram Reddy, Vishma Prabhu, Isha Acharya and Ashit Handa15. Ocular ischemic syndromeSengul Ozdek, Burak Acar and Ece Ozdemir Zeydanli16. Diabetic retinopathy and choroidopathy: Pathophysiology, imaging findings, and treatment updatesSukhum Silpa-archa, Mongkol Tadarati, Peranut Chotcomwongse and Paisan Ruamviboonsuk17. Paracentral acute middle maculopathy and acute macular neuroretinopathy: Distinct but related entitiesElodie Bousquet, Ahmad Santina and David SarrafSection IV: Choroidal vascular diseases18. Pachychoroid syndromeClaudio Iovino19. Venous overload choroidopathyArman Zarnegar, Joshua Ong, Sumit Randhir Singh and Jay Chhablani20. Peripapillary pachychoroid syndromeReza Mirshahi, Kimia Rahimi Ardali and Khalil Ghasemi FalavarjaniSection V: Vascular abnormalities21. Retinal artery aneurysmal abnormalitiesLisa Checchin, Ilaria Zucchiatti, Riccardo Sacconi, Francesco Bandello and Giuseppe Querques22. Macular telangiectasiaApoorva Ayachit, Guruprasad Ayachit and Shrinivas Joshi23. Coats diseaseKristine Wang, Hana A. Mansour, Taku Wakabayashi, Meera D. Sivalingam and Yoshihiro Yonekawa24. Arteriovenous malformationsJavier Munoz-Solano, Roberto Gallego-Pinazo and J. Fernando Arevalo25. Choroidal macrovesselKushal Agrawal and Vishal RavalSection VI: Vascular diseases associated with systemic inflammatory diseases26. Systemic lupus erythematosusDanny A. Mammo and Aleksandra V. Rachitskaya27. Retina and choroidal vascular changes in Behcet diseaseShaikha Aljneibi and Francesco Pichi28. Multiple sclerosisStela Vujosevic29. SarcoidosisAniruddha Agarwal and Jyotirmay Biswas30. Granulomatosis/polyarteritis nodosa associated disordersIrini Chatziralli and Konstantinos Pappelis31. Retinal manifestations of Takayasu's arteritisSophie Bonnin and Alain GaudricSection VIIVascular diseases associated withsystemic conditions32. Hypertensive retinopathyAbdulla R. Shaheen and Jayanth Sridhar33. Pregnancy-induced hypertensionAnthony A. Jones, John K. Lippincott, Monica P. Gonzalez and Judy E. Kim34. Sickle cell retinopathyAbhinaya Bharath, Adrienne W. Scott and Sally S. Ong35. Leukemic retinopathyZeinab El Moussawi, Hana A. Mansour and Ahmad M. Mansour36. Purstcher retinopathyJonathan T. Caranfa and Caroline R. Baumal37. Radiation retinopathyThibaud Mathis, Laurent Kodjikian and Juliette Thariat38. Giant cell arteritiseassociated ocular vascular diseasesMarie-Helene Errera, Thomas M. Pearce and Gabrielle BonhommeSection VIII: Vascular tumors39.