The ninth edition of Ocular Differential Diagnosis is a practical manual to help practitioners make a quick diagnosis based on presentation and symptoms. The chapters are organised by regions of the eye, listing possible causes for each symptom in both common and uncommon disorders. Syndromes and diseases associated with exophthalmos, ptosis, strabismus, nystagmus, glaucoma, cataracts, uveitis and optic atrophy are discussed in detail. Drugs associated with each disorder are listed alphabetically and their recommended selection and dosage are in accordance with current practice. Diagnoses are listed alphabetically with more common and clinically significant disorders highlighted by asterisks. Further reading suggestions appear after each diagnostic description.