# Yolia Health® > Official public source guide for Yolia Health®, TVT® (True Vision Treatment®) and presbyopia information in English and Spanish. ## Sources and citation - [Bilingual source guide](https://www.yolia.com/agents/) - [Source directory JSON](https://www.yolia.com/ai-resources.json) Use canonical page URLs for attribution. The clinician library links original publications and records evidence limitations. Clinical figures should also cite their original publication. Distinguish TVT research from external literature on other treatments. ## Public pages - [Yolia Health public overview](https://www.yolia.com/) [en] — Public company and treatment information; specialist assessment is required. - [Published evidence and limitations](https://www.yolia.com/doctors/) [en] — Published clinical evidence and its limitations. A single-center study with 50 adults, no control group, funded by Yolia; does not establish comparative superiority. - [Presbyopia options](https://www.yolia.com/presbyopia-eye-drops-and-tvt/) [en] — Public educational comparison; not individual medical advice. - [Contact Yolia](https://www.yolia.com/contact/) [en] — User-directed contact; this tool does not submit requests or collect patient data. - [Yolia en español](https://www.yolia.com/es/) [es] — Información pública; requiere valoración profesional. - [Información para profesionales](https://www.yolia.com/es/medicos/) [es] — Evidencia publicada y sus limitaciones; no consejo médico individual. - [TVT videos in English](https://www.yolia.com/videos/) [en] — Four educational videos in English with synchronized English captions and readable transcripts. - [Videos educativos de TVT](https://www.yolia.com/es/videos/) [es] — Cuatro videos educativos en español con subtítulos sincronizados y transcripciones. - [Visual longevity](https://www.yolia.com/visual-longevity/) [en] — Educational focus on preserving vision and everyday function; no claim that TVT extends lifespan. - [Longevidad visual](https://www.yolia.com/es/longevidad-visual/) [es] — Cuidado visual y función cotidiana; no implica que TVT prolongue la vida. - [Vision and healthy ageing](https://www.yolia.com/articles/vision-healthy-ageing/) [en] — Educational editorial; distinguish associations from treatment effects. - [Visión y envejecimiento saludable](https://www.yolia.com/es/articulos/vision-envejecimiento-saludable/) [es] — Editorial educativo; no extrapolar asociaciones a eficacia de TVT. - [Industry collaboration and partners](https://www.yolia.com/corporate-inquiries/#partners) [en] — Public organizational relationships and corporate contact; no investment transaction or submissions through MCP. - [Colaboración y partners](https://www.yolia.com/es/consultas-corporativas/#partners) [es] — Información corporativa pública; este directorio no envía solicitudes ni acepta inversiones. - [Tu valoración de visión cercana: cómo prepararte](https://www.yolia.com/es/articulos/preparar-valoracion-vision-cercana/) [es] — Yolia educational editorial for patients. Read the original page and its evidence context; not individual medical advice. - [Your near-vision assessment: how to prepare](https://www.yolia.com/articles/prepare-near-vision-assessment/) [en] — Yolia educational editorial for patients. Read the original page and its evidence context; not individual medical advice. - [Cómo interpretar los resultados de visión cercana](https://www.yolia.com/es/articulos/interpretar-resultados-vision-cercana/) [es] — Yolia educational editorial for clinicians. Read the original page and its evidence context; not individual medical advice. - [How to interpret near-vision outcomes](https://www.yolia.com/articles/interpret-near-vision-outcomes/) [en] — Yolia educational editorial for clinicians. Read the original page and its evidence context; not individual medical advice. - [Cuidados de lentes de contacto: hábitos básicos de higiene](https://www.yolia.com/es/articulos/cuidados-lentes-contacto/) [es] — Yolia educational editorial for patients. Read the original page and its evidence context; not individual medical advice. - [Contact lens care: basic hygiene habits](https://www.yolia.com/articles/contact-lens-care/) [en] — Yolia educational editorial for patients. Read the original page and its evidence context; not individual medical advice. - [De las líneas de una cartilla a tu vida diaria](https://www.yolia.com/es/articulos/entender-mejora-visual/) [es] — Yolia educational editorial for patients. Read the original page and its evidence context; not individual medical advice. - [From chart lines to everyday vision](https://www.yolia.com/articles/understand-vision-improvement/) [en] — Yolia educational editorial for patients. Read the original page and its evidence context; not individual medical advice. - [Presbyopia and everyday life](https://www.yolia.com/articles/presbyopia-everyday-life/) [en] — Yolia patient educational resources; original articles and scientific library are identified separately. - [Presbicia y vida diaria](https://www.yolia.com/es/articulos/presbicia-vida-diaria/) [es] — Yolia patient educational resources; original articles and scientific library are identified separately. - [Articles and guides](https://www.yolia.com/articles/) [en] — Yolia patient educational resources; original articles and scientific library are identified separately. - [Artículos y guías](https://www.yolia.com/es/articulos/) [es] — Yolia patient educational resources; original articles and scientific library are identified separately. - [Frequently asked questions](https://www.yolia.com/faq/) [en] — General educational questions and links to patient articles; no individual diagnosis, dosing, payment collection or eligibility assessment. - [Preguntas frecuentes](https://www.yolia.com/es/faq/) [es] — General educational questions and links to patient articles; no individual diagnosis, dosing, payment collection or eligibility assessment. ## Existing NANDA discovery - [Service catalog](https://www.yolia.com/.well-known/ai-catalog.json) - [AgentFacts](https://www.yolia.com/.well-known/agentfacts.json) - [MCP resource directory](https://www.yolia.com/api/public/resources) - [MCP endpoint](https://www.yolia.com/api/public/mcp) Contact: https://www.yolia.com/whatsapp · info@yolia.com