Table 3. Reasons for discrepancy between the expert retina specialist and retina fellows.

Reasons for discrepancy	Number of images*	Percentage (%)
Identification of stage	41	71.9
Identification of plus disease	23	40.4
Identification of zone	8	14.0
Poor image quality	5	8.8
Total number of images	57†

^*Number of images that were diagnosed correctly by <50% of fellows. The sum is larger than the total number of images because some images were diagnosed incorrectly by fellows for different reasons.

^†Total number of images that were diagnosed correctly by <50% of fellows.