| |
Typical |
Atypical |
| Age |
15- 45 years old |
<15; >45 years old |
| Side |
Unilateral |
Bilateral; rapidly sequencial to the fellow eye |
| Onset |
Acute; subacute (1-2 weeks) |
Insidious; Chronic |
| VA |
Moderate affectation |
Severe affectation |
| Pain with eye movement |
Present |
Absent; mild discomfort |
| Fundus exam |
Normal (2/3); diffuse edema without hemorrhages (1/3); periphlebitis; resolved within two months |
Normal; sectorial edema; hemorrhages; persistent after two months |
| Evolution |
Spontaneous resolution; steroids accelerate the recovery of VA |
Progression after two weeks; steroids unresponsive forms (at least two lines of VA); marked steroids responsive forms |
| RAPD |
Present |
Present |
