# [Research progress of hydrogen-rich saline for eye diseases].
> 水素富化生理食塩水の眼疾患への応用に関する研究動向


## Abstract

Molecular hydrogen has attracted considerable attention as an antioxidant agent with a favorable safety profile, as it does not interfere with essential metabolic redox processes or disrupt reactive oxygen species involved in cellular signaling. Evidence from biological and medical research indicates beneficial outcomes across multiple organ systems, including the nervous, digestive, and respiratory systems, as well as the heart and kidneys. However, investigations into its effects on ocular conditions remain sparse. This review consolidates findings from domestic and international literature to outline the current state of research on hydrogen-rich water in the context of eye diseases, highlighting areas where evidence is emerging and where further study is warranted.

### Mechanism

Hydrogen acts as a selective antioxidant, neutralizing excess reactive oxygen species without disrupting those required for normal cellular signaling, thereby potentially protecting ocular tissues from oxidative damage.

## Bibliographic

- **Authors**: Chen X, Zhou XQ, Wei RL
- **Journal**: Zhonghua Yan Ke Za Zhi
- **Year**: 2018 (2018-08-11)
- **PMID**: [30107657](https://pubmed.ncbi.nlm.nih.gov/30107657/)
- **DOI**: [10.3760/cma.j.issn.0412-4081.2018.08.015](https://doi.org/10.3760/cma.j.issn.0412-4081.2018.08.015)
- **Study type**: review
- **Delivery route**: injection / infusion
- **Effect reported**: not assessed

## Delivery context

Intravenous hydrogen-saline infusion is a clinic-only route and is not viable for everyday self-administration. For routine hydrogen intake, inhalation is the most practical route, but inhalation carries explosion risk and concentration matters (empirical LFL of 10%; high-concentration 66% / 100% devices are not recommended).

## Safety notes

Intravenous hydrogen-saline infusion is a clinic-only route and is not viable for everyday self-administration. For routine hydrogen intake, inhalation is the most practical route, but inhalation carries explosion risk and concentration matters (empirical LFL of 10%; high-concentration 66% / 100% devices are not recommended).

See also:
- [Inhalation concentration and LFL / UFL](https://h2-papers.org/en/safety-notes/inhalation-concentration)
- [Consumer Affairs Agency accident cases](https://h2-papers.org/en/safety-notes/accident-cases)
- [Inhalation safety threshold lineage](https://h2-papers.org/en/safety-notes/lineage)

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> **Cite as**: H2 Papers — PMID 30107657. https://h2-papers.org/en/papers/30107657
> **Source**: PubMed PMID [30107657](https://pubmed.ncbi.nlm.nih.gov/30107657/)