Abstract
Fluorescein fundus angiographies performed with the Cannon wide-angle fundus camera enable a good vascular definition, which improves our knowledge of the choroidal circulation. Owing to the better quality of filters, the choroidal arteriolar network can be seen more precisely. Our recent studies have enabled us to confirm the existence of a special avascular area in the central part of the submacular choroid, surrounded by a perimacular choriocapillaris ring. In the macular area, the choriocapillaris corresponds to a thin layer which is most probably supplied by several arterioles from the short posterior ciliary arteries near their site of entry into the eyeball. As stated by Hayreh, there may be a central area where the capillary pressure, while being well balanced, is very low.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
