Xérophtalmie (carence sévère en vitamine A)

Prevention of Xerophthalmia (Severe Vitamin A Deficiency)

• Adequate intake of vitamin A-rich foods (carrots, leafy greens, dairy)
• Nutritional supplementation
• Public health nutrition programs
• Early screening in high-risk populations

Overview 

Xerophthalmia is a serious eye condition caused by a deficiency of vitamin A, leading to dryness of the conjunctiva and cornea. If untreated, it can progress to night blindness and permanent vision loss.

Xerophthalmia is more common in children and populations with poor nutrition. Early diagnosis and timely treatment are essential to prevent blindness.

Types of Xerophthalmia (Severe Vitamin A Deficiency) Disease

• Night Blindness (Nyctalopia): Difficulty seeing in low light
• Conjunctival Xerosis: Dryness of the eye surface
• Bitot’s Spots: Foamy white patches on the eye
• Corneal Xerosis: Dryness of the cornea
• Keratomalacia: Softening and damage of the cornea (severe stage)

Symptoms of Xerophthalmia (Severe Vitamin A Deficiency)

• Night blindness
• Dry eyes
• Irritation or discomfort
• Foamy patches on the eye (Bitot’s spots)
• Blurred vision
• Eye redness
• Vision loss in advanced stages

Causes of Xerophthalmia (Severe Vitamin A Deficiency)

• Vitamin A deficiency
• Poor nutrition
• Malabsorption disorders
• Chronic illnesses
• Inadequate dietary intake of vitamin A

Complications of Xerophthalmia (Severe Vitamin A Deficiency)

• Permanent vision loss
• Corneal damage
• Eye infections
• Blindness (in severe cases)

Risk Factors of Xerophthalmia (Severe Vitamin A Deficiency)

• Malnutrition
• Children in developing regions
• Poor dietary intake
• Gastrointestinal disorders
• Chronic illnesses