A 3-year-old girl from rural Bihar presents with her mother complaining of progressive vision loss over 2 months. On examination, the child has bilateral conjunctival xerosis with Bitot's spots, corneal haze, and inability to see in dim light. Anthropometry shows weight-for-age <60% of expected. The mother reports the child eats predominantly rice and lentils, with rare access to eggs, milk, or leafy vegetables. What is the most appropriate immediate management?

Explanation

## Management of Xerophthalmia — Vitamin A Deficiency ### Clinical Context This child presents with **stage 3–4 xerophthalmia** (conjunctival xerosis with Bitot's spots, corneal haze, and night blindness). The malnutrition background (weight-for-age <60%) and dietary history confirm nutritional vitamin A deficiency. ### Correct Management Strategy **Key Point:** WHO and Indian guidelines recommend **high-dose oral vitamin A** for xerophthalmia management, NOT topical treatment alone. The standard regimen is: 1. **Day 1:** 200,000 IU (60 mg retinol) orally 2. **Day 2:** 200,000 IU orally (repeat) 3. **Day 14:** 200,000 IU orally (third dose) This dosing achieves rapid restoration of retinal function and halts corneal progression. ### Why This Approach? | Feature | Oral High-Dose | Topical Drops | IM/IV | |---------|---|---|---| | **Systemic restoration** | ✓ Restores liver stores | ✗ Local only | ✓ But less preferred | | **Speed of effect** | Rapid (hours–days) | Slow, inadequate | Rapid but invasive | | **Corneal penetration** | Excellent | Poor | Excellent | | **Guideline recommendation** | **WHO, India** | Adjunct only | Reserved for severe/vomiting | | **Cost** | Low | Low | Higher | **High-Yield:** Oral vitamin A is the **gold standard** for all stages of xerophthalmia in children with adequate GI absorption. IM/IV is reserved for severe malabsorption, persistent vomiting, or measles-associated deficiency. ### Supportive Care - Lubricating eye drops (artificial tears) as adjunct - Nutritional rehabilitation (protein, energy, micronutrients) - Treat concurrent infections (measles, diarrhea, respiratory) - Educate on dietary sources (liver, eggs, orange/yellow vegetables, leafy greens) **Clinical Pearl:** Bitot's spots (foamy white patches on temporal conjunctiva) are pathognomonic for vitamin A deficiency and regress with treatment, confirming diagnosis and response. [cite:Park 26e Ch 6 — Nutrition & Health]