In sympathetic opthalmitis first sign is -
The first sign may be presence of retrolental flare and cells or the presence of keratic precipitates (KPs) on back of cornea. Other signs includes mild ciliary congestion, slight tenderness of the globe, fine vitreous haze and disc oedema which is seen occasionally. Ref : Parsons' 22nd edition , page no.398
Presence of KPs
Ciliary congestion
Tenderness of the globe
Disc oedema
Ocular trauma 