Table 15.

Prognosis

Glabellar injections	Often CRAO, with sudden painless loss of vision; Snellen acuity of only counting fingers
Nasal injections	Often OAO; 6 prognostic types, diffuse occlusion carrying worse prognosis
CRAO	Poor prognosis;15% spontaneous recovery or after traditional rescue methods Partial recovery has been documented 15 hrs after incomplete CRAO
OAO	Poor prognosis
BRAO	Better prognosis; quadrantal visual field with early preservation of central visual acuity
Irreversible damage	60–90 minutes; may be less

Abbreviations: CRAO, central retinal artery obstruction; OAO, ophthalmic artery occlusion; BRAO, branch retinal artery occlusion.