Differential diagnosis
Common
Infrequent
- Corneal abrasion
- Central retinal vein occlusion
- Anterior uveitis
- Primary open-angle glaucoma
- Pre-eclampsia
- Herpes simplex keratitis
- Acute angle closure glaucoma
- Vitreous haemorrage
- Optic neuritis
- Temporal arteritis
- Multiple sclerosis
Rare
- Thyroid eye disease
- Scleritis
- Type 1 diabetes mellitus
- Carotid artery dissection
- Orbital cellulitis
- Marfan's syndrome
- Central retinal artery occlusion
Specific differential diagnosis
TYPES
Dark spots in visionFlashes
Floaters
Visual field loss