آنکھوں کی بیماری کس وٹامن کی کمی سے ہوتی ہے؟

Question context

This question is part of 🧬 Biochemistry within the broader 🧬 Medical Science subject and appears in the ETEA Educational Testing and Evaluation Agency preparation collection. Reviewing the answer together with nearby questions helps reinforce the underlying concept and identify how it may appear in competitive exams.