Considerations for a Retained Foreign Body in the Posterior Orbital Apex.

Orbital foreign bodies must be approached with complex considerations involving their precise location and composition in order to adequately guide management. Physicians must carefully weigh the advantages and risks of surgical and medical intervention compared to conservative management. We present a case of a male patient with penetrating trauma to the eye that resulted in open globe injury and orbital foreign body, presumed metallic, at the posterior orbital apex near the optic nerve.

Vascular biomarkers from optical coherence tomography angiography and glaucoma: where do we stand in 2021?

Biomarkers of ocular blood flow originating from a wide variety of imaging modalities have been associated with glaucoma onset and progression for many decades. Advancements in imaging platforms including optical coherence tomography angiography (OCTA) have provided the ability to quantify vascular changes in glaucoma patients, alongside traditional measures such as retinal nerve fibre layer thickness and optic nerve head structure. Current literature on vascular biomarkers, as measured by OCTA, indicates significant relationships between glaucoma and blood flow and capillary density in the retina and ONH.