Skip to main content
Fig. 1 | BMC Ophthalmology

Fig. 1

From: Quantification of an oval optic disc in relation to myopic foveoschisis using swept-source optical coherence tomography

Fig. 1

A schema showing the biometric parameters of the optic disc and PPA-β/γ zone measured using fundus photograph. A The ovality index was calculated by dividing the minimal optic disc diameter (white arrow) by the maximal diameter (yellow arrow). B The white arrow indicated the distance between the foveal center and the temporal PPA-β/γ margin, the yellow arrow indicated the distance between the foveal center and the nasal PPA-β/γ margin, and the blue arrow indicated the distance between the nasal and temporal PPA-β/γ margins

Back to article page

BMC Ophthalmology

ISSN: 1471-2415

Contact us