The Underrated Choroid

The Underrated Choroid

From supplying the outer retina with nutrients to maintaining the temperature

and volume of the eye, the choroid has many underrated functions.

And it’s about time we dedicated a session to this important yet lesser-known part of the eye. On the second day of the EURETINA 2021 Virtual, leading scientists did exactly that.

They shared their latest discoveries in the management of choroid disorders as well as advancements

in technology to diagnose these conditions. Innovations in choroidal imaging The first speaker was Prof.

Shozo Sonoda of the Kagoshima University Hospital, Ja-pan, who talked about “Advancements in Choroidal Image”,

noting that Optos fundus images cannot be used to visualize the entire vortex vein ลาวสามัคคี วีไอพี.

To solve this problem, Prof. Shozo Sonoda and his teammates capture the Optos fundus images

in both upward and downward views so that extreme peripheral fundus images can be recorded.

They also made non-invasive observation of the entire cortex vein possible

by creating a combined image to observe the periphery of the choroid.

Quantification using a 3D eye model also overcomes the weaknesses of two-dimensional measurement and is more accurate.

“In pachychoroid eyes, differences in distance and angle are observed only in the up-per half of the fundus,” observed Prof.

Sonoda. “Position of the temporal upper vortex vein shifted in the vertical direction of the eyeball and the distance was increased.”

He added that the distance on the nasal upper vortex vein did not change, but a corresponding shift was observed at the temporal upper side.

“Deviation of the upper temporal vortex vein to the direction of hydrodynamic load is likely to trigger congestion due to gravity.

Since the same tendency is observed in the fellow eye of pachychoroid disease, the abnormal position of vortex vein may be the indirect aggravating factor,” Prof. Sonoda shared. Is CSC a scleral disease?

According to Dr. Hideki Koizumi of the University of Ryukyus, Japan, central serous chorioretinopathy

(CSC) is observed with dilated choroidal vessels and choroidal vascular hyperpermeability on indocyanine green angiography (ICGA) and a thickened choroid on optical coherence tomography (OCT).

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