Table 8.

The reference threshold for morphological features grading

Morphological feature j	$Th{1}_j$	$Th{2}_j$	$Th{3}_j$	Grading conditions
$r_{ILM},r_{RPE}$	−0.9	−0.5	0	II
($\mathrm{\nabla }{Y}_{ILM}$(P) | PA_L)($\mathrm{\nabla }{Y}_{ILM}$(P) | PE_L)	20	8	3	I
($\mathrm{\nabla }{Y}_{RPE}$(P) | PA_L)($\mathrm{\nabla }{Y}_{RPE}$(P) | PE_L)
($\mathrm{\nabla }{Y}_{ILM}$(N) | PA_R)($\mathrm{\nabla }{Y}_{ILM}$(N) | PE_R)	−20	−8	−3	II
($\mathrm{\nabla }{Y}_{RPE}$(N) | PA_R)($\mathrm{\nabla }{Y}_{RPE}$(N) | PE_R)
($\mathrm{\nabla }{Y}_{ILM}|$ Fovea)	70	50	30	I
($\mathrm{\nabla }{Y}_{RPE}|$ Fovea)	35	25	10	I
${\mathit{\sigma }}_{ILM},{\mathit{\sigma }}_{RPE}$	60	50	25	I
$K_{ILM},K_{RPE}$	8	5	3	I