A 32-year-old male factory worker presents to the emergency department 15 minutes after a splash of hydrochloric acid (HCl) to his right eye during an industrial accident. On examination, the cornea appears hazy with a ground-glass appearance, the anterior chamber is shallow with fibrin, and intraocular pressure is 32 mmHg. Visual acuity is hand movements. What is the most appropriate immediate management?

Explanation

## Immediate Management of Chemical Eye Injuries **Key Point:** The cornerstone of chemical eye injury management is **immediate and copious irrigation** with any available isotonic solution (normal saline, Ringer's lactate, or even tap water in prehospital settings) for a minimum of 15–20 minutes, regardless of the type of chemical agent. ### Pathophysiology of Acid Injuries Acids (like HCl) cause **coagulation necrosis** of corneal and conjunctival epithelium. The protein denaturation is rapid but **self-limiting** — the acid is neutralized by tissue buffers and does not penetrate deeply into the eye. This contrasts sharply with alkali burns, which cause liquefactive necrosis and deeper penetration. ### Management Algorithm ```mermaid flowchart TD A[Chemical splash to eye]:::outcome --> B[Immediate irrigation]:::action B --> C[Saline/Ringer's lactate × 15-20 min]:::action C --> D[Check pH with litmus paper]:::action D --> E{pH normal?}:::decision E -->|Yes| F[Topical antibiotics + cycloplegics]:::action E -->|No| G[Continue irrigation until pH ≥ 7]:::action G --> F F --> H[Ophthalmology referral]:::action H --> I[Assess severity: Roper Hall grade]:::outcome ``` ### Post-Irrigation Management | Step | Agent | Rationale | |------|-------|----------| | **Immediate** | Copious irrigation (15–20 min) | Remove chemical, neutralize pH | | **Topical antibiotics** | Ciprofloxacin or gentamicin | Prevent secondary infection | | **Cycloplegics** | Cyclopentolate 1% TID | Reduce ciliary spasm, comfort | | **Lubricants** | Preservative-free artificial tears | Maintain corneal hydration | | **Systemic** | Oral vitamin C (500 mg TID) | Collagen cross-linking inhibitor (if severe) | | **Topical steroids** | Prednisolone acetate 1% QID | Start after 24–48 hrs if no perforation risk | **Clinical Pearl:** In this case, the **hazy cornea and shallow anterior chamber** suggest significant corneal edema and inflammation. Immediate irrigation is the only intervention that can prevent further tissue damage; steroids alone without irrigation will worsen the outcome. **High-Yield:** Acid burns are **self-limiting** (protein coagulation stops penetration), whereas alkali burns are **progressive** (liquefactive necrosis continues for hours). This distinction determines urgency and duration of irrigation. ### Why Immediate Irrigation Matters Even 15 minutes of delay significantly increases the risk of: - Corneal scarring and opacity - Anterior synechiae (iris-cornea adhesions) - Secondary glaucoma - Permanent vision loss **Tip:** In the exam, **always choose irrigation first** for any chemical eye injury, regardless of the agent or clinical findings. It is the single most important intervention.