ICO Advanced study guide
ICO Advanced · Work through your exam, one topic at a time.
The International Council of Ophthalmology (ICO) sits behind a family of international ophthalmology examinations that lead to fellowship-level designations, including FICO – Fellow of the ICO and FRCS (Ophth)(Glasg) – Fellow of the RCPSG. The ICO describes its mission as connecting ophthalmologists around the world to achieve eye health for everyone, and it lists examinations under its "Enhancing Education" workstream alongside fellowships, educational programs, and the World Ophthalmology Congress. Candidates are typically ophthalmologists or ophthalmology trainees who want an internationally recognised credential that is not tied to a single national training system. Because the credential is examined across national borders, preparation usually means working through a broad ophthalmology curriculum - optics and refraction, cornea and external disease, glaucoma, retina and vitreous, uveitis, neuro-ophthalmology, oculoplastics, paediatric ophthalmology and strabismus, ocular pathology, and pharmacology - combined with clinical case reasoning rather than isolated fact recall. A practical preparation plan is to work from the ICO's own published examination pages first, since the ICO states that its current website has been updated and that examination information now lives on a dedicated ICO Examination section; then build a study schedule around the syllabus, practise structured case-based questions, and rehearse timed conditions. Independently verify dates, fees, centres, and eligibility directly with the ICO before you register - this page is an independent study resource and is not affiliated with, endorsed by, or operated by the ICO or the Royal College of Physicians and Surgeons of Glasgow. Topics on this exam: Ophthalmology (content domains not enumerated in source). The ICO Advanced study guide has 1 section and about 386 words.
01Ophthalmology
The ICO Advanced ophthalmology section tests whether you can move from a symptom to a defensible diagnosis and management plan across cornea, glaucoma, retina, uveitis, neuro-ophthalmology, pediatrics, and oculoplastics. Questions favor integrated reasoning: a disc finding may require a vascular, inflammatory, or compressive explanation; a red eye may hinge on contact-lens history or anterior chamber depth. Classify vision loss by onset (sudden vs progressive), laterality, pain, and whether the problem is ocular or afferent. A relative afferent pupillary defect points to optic nerve or extensive retinal disease, not media opacity.
386 words, about 2 minMore study resources for ICO Advanced
- Practice questionsA patient with a known diagnosis of keratoconus undergoes refraction.
- FlashcardsCentral corneal thickness. Average central corneal thickness is about 540 micrometers.
- Cheat sheetCorneal thickness: central corneal thickness (CCT) averages about 540 µm; thinner corneas (e.g., <500 µm) raise measured intraocular pressure (IOP) by applanation and are a risk factor for glaucoma progression.
- Key termsAmblyopia. Reduced best-corrected vision in one or both eyes caused by abnormal visual experience during early development, without a structural cause on examination.
- Study planMap the full ICO Advanced ophthalmology syllabus into a personal topic checklist covering optics and refraction, cornea and external disease, lens and cataract, glaucoma, uveitis, retina and vitreous, neuro-ophthalmology, strabismus and pediatric ophthalmology, oculoplastics and orbit, and ocular oncology.
- Common mistakesAdvanced items often package a common presentation with one atypical feature that shifts the answer; candidates pattern-match on the familiar stem opening and stop reasoning once a comfortable diagnosis appears.
- Exam-day guideBring the original document named in your admission confirmation (typically a passport or national ID card).