The Diameter of Retinal Arterioles Is Unaffected by Intravascular Administration of the Adenosine A 2A Receptor Agonist Regadenoson in Normal Persons.

Intravenous administration of the adenosine A receptor agonist regadenoson had no significant effect on the diameter of retinal arterioles. Future studies should investigate differential effects of intra- and extravascular administration of adenosine receptor agonists on retinal vessels.