Agreement on the evaluation of glaucomatous optic nerve head findings by ophthalmology residents and a glaucoma specialist

Figures & data

Table 1 Agreement between ophthalmology residents and a glaucoma expert for ONH and retinal findings

ONH and retinal findings	First-Year Group	Third-Year Group
	Agreement	Agreement
	AA (%), κ	AA (%), κ
Tilted disk	87, κ=0.24	94, κ=0.57
Saucerization	67, κ=0.05	65, κ=0.00
Laminar dot sign	73, κ=0.48	80, κ=0.60
Zone β atrophy	55, κ=0.16	61, κ=0.24
Nasal cupping	60, κ=0.23	69, κ=0.39
Baring of circumlinear vessel	53, κ=0.12	63, κ=0.28
Notch	55, κ=0.15	64, κ=0.15
RNFL defect	52, κ=0.03	62, κ=0.12
Optic disk size	66, κ=0.17	62, κ=0.19
Glaucomatous neuropathy	64, κ=0.19	63, κ=0.20

Note: AA (absolute agreement): observed proportion of agreement.

Abbreviations: ONH, optic nerve head; RNFL, retinal nerve fiber layer.

Table 2 Agreement between ophthalmology residents and a glaucoma expert for C:D

C:D	Measure
Vertical C:D
First-Year Group
Mean (SD)	0.63 (0.21)
Mean difference (95% LOA)a	−0.04 (−0.41 to 0.32)
Third-Year Group
Mean (SD)	0.62 (0.24)
Mean difference (95% LOA)a	−0.04 (−0.35 to 0.26)
Horizontal C:D
First-Year Group
Mean (SD)	0.63 (0.21)
Mean difference (95% LOA)a	−0.06 (−0.48 to 0.35)
Third-Year Group
Mean (SD)	0.63 (0.23)
Mean difference (95% LOA)a	−0.05 (−0.39 to 0.29)

Note:

a Agreement with the expert.

Abbreviations: C:D, cup-to-disk ratio; LOA, limits of agreement; SD, standard deviation.