MRCP UK EXAMINATIONS

Detailed explanation-1: -Center Point Thickness – the average of the thickness values for the 6 radial scans at their point of intersection.

Detailed explanation-2: -CENTRAL SUBFIELD THICKNESS. Clinically, CST is an objective measurement of macular thickness readily available on OCT imaging. The central subfield is defined as the circular area 1 mm in diameter centered around the center point of the fovea, with its thickness provided as a quantifiable value on OCT software.

Detailed explanation-3: -The classification is: Center-involved DME: Retinal thickening in the macula that involves the central subfield zone (1 mm in diameter) Non-center involved DME: Retinal thickening in the macula that does not involve the central subfield zone (1 mm in diameter)