4.1 The Five History Domains: Ocular, Medical, Medication, Social & Family
Key Takeaways
- The IJCAHPO history content area names exactly five domains: ocular, medical, medication, social and family.
- A chief complaint is recorded in the patient's own words, then characterised by onset, duration, laterality, severity, quality and modifying factors.
- Medication history must include over-the-counter drops, supplements and herbal products because tamsulosin, amiodarone, hydroxychloroquine and anticholinergics all change ophthalmic management.
- Family history of glaucoma, retinal detachment, macular degeneration and retinoblastoma changes screening intervals and must be recorded with the relationship and age of onset.
- Open-ended questions gather content; closed questions confirm specifics — use open first, then narrow.
Why history is a scored content area
History and Documentation is 3% of the COMT examination — roughly six items — but its real weight is larger, because scenario questions in motility, pharmacology, patient services and supplemental testing all open with a history. A candidate who reads histories well answers those items faster.
IJCAHPO names five history domains: ocular, medical, medication, social and family. Cover all five and the record is complete.
The chief complaint
Record the chief complaint in the patient's own words, in quotation marks, then characterise it. A reliable structure:
| Element | Question that gets it |
|---|---|
| Onset | "When did you first notice it?" |
| Duration / course | "Is it constant or does it come and go? Getting better or worse?" |
| Laterality | "One eye or both? Does it change if you cover one eye?" |
| Severity | "How much does it interfere with what you need to do?" |
| Quality | "Describe it — blurry, double, a curtain, flashes, a shadow?" |
| Associated symptoms | Pain, photophobia, discharge, headache, nausea, neurological signs |
| Modifying factors | "Anything that makes it better or worse? Distance versus near? Light versus dark?" |
| Prior episodes and treatment | "Has this happened before? What was done?" |
The laterality question is the one technologists most often get wrong. Patients frequently report a "right eye problem" that is actually a right visual field defect in both eyes. Asking the patient to cover each eye separately resolves it in ten seconds and can be the difference between a routine refraction and a stroke referral.
Red-flag symptoms
These change the appointment, not just the record:
- Sudden painless loss of vision — vascular occlusion, retinal detachment, vitreous haemorrhage.
- New flashes with a shower of floaters, or a curtain — retinal tear or detachment.
- Pain with nausea, vomiting and haloes — acute angle closure.
- New binocular diplopia — cranial nerve palsy; ask about pain, headache and pupil size.
- Headache with jaw claudication or scalp tenderness in a patient over 50 — giant cell arteritis.
- Chemical splash — irrigate first, take the history second.
- Transient monocular loss lasting minutes — amaurosis fugax, a carotid warning.
Ocular history
Previous refractive error and spectacle or contact lens wear; previous eye surgery with dates (refractive surgery invalidates standard intraocular lens formulas and changes keratometry interpretation); ocular trauma; amblyopia, patching or strabismus surgery in childhood; previous diagnoses of glaucoma, uveitis, retinal disease or dry eye; current ocular medications with frequency and last dose; date and result of the last eye examination.
Medical history
Record systemic diagnoses with control status and duration, not just names. "Diabetes" is inadequate; "type 2 diabetes for 14 years, most recent HbA1c 9.2%" predicts retinopathy risk. Ask specifically about diabetes, hypertension, thyroid disease, autoimmune disease, cancer, neurological disease, sickle cell trait or disease, and pregnancy (which affects both drug choice and refractive stability). Record blood pressure and pulse when the protocol calls for it.
Medication history — where errors hide
Ask for the actual bottles or a current list. Cover:
- Prescription systemic drugs and the reason for each.
- Topical ocular drops, including the cap colour, because patients often know the colour and not the name.
- Over-the-counter products, including decongestant drops (rebound hyperaemia) and artificial tears.
- Supplements and herbal products.
- Allergies and the nature of the reaction — a rash is not the same as anaphylaxis, and "allergic to iodine" requires careful clarification before any antisepsis or angiography.
Four systemic drug classes must be actively elicited because they change the ophthalmic plan:
| Drug | Ophthalmic consequence |
|---|---|
| Tamsulosin and other alpha-1 blockers | Intraoperative floppy iris syndrome; surgeon must know before cataract surgery |
| Hydroxychloroquine | Retinal toxicity; requires baseline and interval screening with visual fields and OCT |
| Amiodarone | Vortex keratopathy; rarely optic neuropathy |
| Anticholinergics, some antihistamines, topiramate | Angle-closure risk; topiramate causes acute myopic shift with angle closure |
Also flag corticosteroids (cataract, raised pressure), ethambutol (optic neuropathy), sildenafil-class drugs (transient blue tinge), isotretinoin (dry eye, lens intolerance) and anticoagulants (bleeding risk for injections and surgery).
Social history
Occupation and visual demands (welder, night driver, microscope user, screen hours), hobbies, driving status and any licensing vision standard, smoking (a strong modifiable risk factor for macular degeneration and thyroid eye disease), alcohol, recreational drug use, and living circumstances that affect compliance with a four-times-daily drop regimen. For contact lens wearers add water exposure, sleeping in lenses and replacement habits.
Family history
Record the relationship and the age at onset, not just the condition.
- Glaucoma — first-degree relative history substantially raises risk and lowers the screening threshold.
- Retinal detachment and high myopia.
- Age-related macular degeneration.
- Retinoblastoma — heritable in a significant fraction; changes paediatric screening entirely.
- Keratoconus, colour vision deficiency, retinitis pigmentosa and other hereditary dystrophies.
- Strabismus and amblyopia.
- Systemic hereditary disease with ocular involvement such as Marfan syndrome, neurofibromatosis and sickle cell disease.
Interviewing technique
Start open ("What brings you in today?"), let the patient finish, then narrow with closed questions to pin specifics. Avoid leading questions — "Does it hurt?" invites a yes. Use plain language: patients do not know what "photophobia" or "metamorphopsia" mean; ask about "light hurting your eyes" and "straight lines looking wavy." Use a professional interpreter rather than a family member when there is a language barrier, and document that an interpreter was used. When a patient has hearing loss, face them, speak at normal volume and confirm understanding rather than shouting.
A patient says their 'right eye has gone blurry' for two days. What single question best clarifies the finding?
Which medication must be identified before cataract surgery because it predisposes to intraoperative floppy iris syndrome?
Which five domains does the IJCAHPO history content area specify?
When recording a family history of glaucoma, what additional detail is most useful?
A patient reports a headache, scalp tenderness and pain in the jaw when chewing. They are 71 years old. What does this history require?