{"hq_id":"hq-p-bdy-000070","name":"Contact Lens Solution (multipurpose)","category":{"primary":"personal_care","secondary":"eye_care","tags":["eye","medical_device","preservative","corneal_health"]},"product_tier":"BDY","overall_risk_level":"moderate","description":"Multipurpose contact lens disinfecting and cleaning solution. Contains PHMB (polyhexamethylene biguanide) or polyquaternium-1 as antimicrobial preservatives, surfactants for cleaning, and buffering agents. PHMB linked to corneal toxicity and Acanthamoeba keratitis outbreaks when underdosed. Direct corneal exposure makes preservative toxicity a significant concern. Market dominated by Alcon, Bausch+Lomb, CooperVision.","synthesis":{"derived_risk_level":"moderate_to_high","synthesis_confidence":0.656,"synthesis_method":"compound_composition","context_used":"human_adult","context_source":"default","exposure_modifier":1.15,"vulnerability_escalated":false,"escalation_reason":null,"compounds_resolved":1,"compounds_total":1,"synthesis_date":"2026-03-27","synthesis_version":"1.0.0"},"hazard_summary":{"overall_risk":"moderate","primary_concerns":["PHMB corneal toxicity with extended exposure","Acanthamoeba keratitis risk if antimicrobial underdosed","Preservative sensitivity/allergic reactions","Biofilm formation in improperly cleaned cases"],"sensitive_populations":"Contact lens wearers with dry eye, sensitive corneas, immunocompromised individuals","exposure_routes":"Ocular (direct corneal contact daily)"},"exposure":{"routes":["ocular"],"contact_types":[],"users":[],"duration":"years","frequency":"daily","scenarios":[],"notes":"Direct corneal contact; residual on lens surfaces during wear"},"consumer_guidance":{"red_flags":["Using tap water instead of solution","Not replacing lens case monthly","Topping off old solution instead of replacing","Using expired solution"],"green_flags":["Preservative-free option available","FDA 510(k) cleared","ISO 14729 compliant"],"what_to_ask":["Which preservative system? PHMB or Polyquad?","Is a preservative-free option available?"],"alternatives":["Hydrogen peroxide-based systems (preservative-free)","Daily disposable lenses (no solution needed)","Preservative-free saline + separate enzymatic cleaner"],"notes":null},"regulatory":{"applicable_regulations":["FDA 510(k) medical device clearance","ISO 14729 antimicrobial efficacy","EU MDR (Class IIb medical device)"],"certifications":[],"labeling":{},"recalls":[],"regulatory_gap":null,"notes":null},"lifecycle":{"recyclable":"bottle yes","disposal_guidance":"Rinse and recycle bottle","hazardous_waste":false,"expected_lifespan":"3 months after opening"},"formulation":{"form":"solution","key_ingredients":[{"hq_id":null,"name":"PHMB (Polyhexamethylene biguanide)","role":"antimicrobial","concentration_pct":"0.0001"},{"hq_id":null,"name":"Polyquaternium-1 (Polyquad)","role":"antimicrobial","concentration_pct":"0.001"},{"hq_id":"hq-c-org-001321","name":"Poloxamer 407","role":"surfactant_cleaner","concentration_pct":"0.05-0.1"},{"hq_id":"hq-c-org-000818","name":"Sodium citrate","role":"buffer","concentration_pct":"0.5-1"},{"hq_id":"hq-c-ino-000020","name":"Boric acid","role":"buffer_antimicrobial","concentration_pct":"0.5-1"}],"certifications":["FDA 510(k) cleared"]},"materials":{"common":[],"concerning":[],"preferred":[]},"compound_composition":[{"hq_id":"hq-c-ino-000015","compound_name":"Hydrogen Peroxide","role":"disinfectant (peroxide-based systems)","typical_concentration":null}],"identifiers":{"manufacturer":"","common_names":[],"aliases":[],"brands":[]},"brand_examples":[{"brand":"Generic Mass-Market Brand A","manufacturer":"Consumer Products Corporation","market_position":"mass_market","notable":"Widely available mass-market option"},{"brand":"Generic Mass-Market Brand B","manufacturer":"Consumer Goods Ltd","market_position":"mass_market","notable":"Popular budget alternative"},{"brand":"Premium Brand A","manufacturer":"Premium Consumer Inc","market_position":"premium","notable":"Upscale premium positioning"},{"brand":"Professional Brand","manufacturer":"Professional Products Co","market_position":"professional","notable":"Professional/salon-grade option"},{"brand":"Specialty Eco-Brand","manufacturer":"Natural Products Ltd","market_position":"premium","notable":"Sustainable/natural product line"}],"sources":[{"type":"expert_curation","name":"ALETHEIA Safety Database","date":"2026-03-23"},{"type":"regulation","title":"FDA 510(k) medical device clearance","jurisdiction":"","id":"src_43cbc52c"},{"type":"regulation","title":"ISO 14729 antimicrobial efficacy","jurisdiction":"","id":"src_b8433b80"},{"type":"regulation","title":"EU MDR (Class IIb medical device)","jurisdiction":"","id":"src_9b0bb083"}],"meta":{"schema_version":"4.0.0","last_updated":"2026-03-22","timestamp":"2026-05-02T18:21:02.833Z"}}