What Are the Challenges in Enhancing Light Penetration?
Despite the advancements, several challenges remain:
1. Tissue Heterogeneity: Human tissues are highly variable in composition, which can lead to inconsistent light penetration. 2. Safety Concerns: Invasive methods like optical fibers must be used cautiously to avoid damaging healthy tissues. 3. Optimization of Dosage: Determining the optimal light dose that maximizes cancer cell destruction while minimizing damage to normal cells is complex.
