Graves’ Ophthalmopathy: VISA versus EUGOGO Classification, Assessment, and Management
Table 2
Clinical Activity Score (CAS) (amended by EUGOGO after Mourits et al.). One point is given for the presence of each of the parameters assessed. The sum of all points defines clinical activity: active ophthalmopathy if the score is above 3/7 at the first examination or above 4/10 in successive examinations.
For initial CAS, only score items 1–7
1
Spontaneous orbital pain
2
Gaze evoked orbital pain
3
Eyelid swelling that is considered to be due to active GO
4
Eyelid erythema
5
Conjunctival redness that is considered to be due to active GO
6
Chemosis
7
Inflammation of caruncle OR plica
Patients assessed after follow-up (1–3 months) can be scored out of 10 by including items 8–10
8
Increase of >2 mm in proptosis
9
Decrease in uniocular ocular excursion in any one direction of >8°
