Visual impairment is a global health crisis affecting over 2.2 billion individuals, many of whom could have avoided their condition with proper care. The leading causes include easily correctable issues like cataracts, refractive errors, age-related macular degeneration, glaucoma, and diabetic retinopathy. Vision loss is categorized by severity, ranging from low vision, which impacts daily activities, to complete blindness. Both genetic predispositions and environmental factors significantly influence the determination of an individual’s risk. Genetically, single-gene mutations can cause disorders such as retinitis pigmentosa, while the complex interactions of multiple genes contribute to conditions like glaucoma. Environmental impacts range from prenatal infections, such as rubella, to postnatal malnutrition and lack of access to clean water. Effective prevention and management require a multifaceted approach. Genetic counseling can help families understand their risk, while prenatal care and maternal health management can reduce the incidence of congenital eye defects. Community-based programs that promote eye health, provide vaccinations, and ensure proper nutrition are crucial for preventing childhood blindness. Individuals can also take proactive steps, such as quitting smoking, limiting screen time, eating a balanced diet, and ensuring proper lighting. Emerging personalized medicine approaches offer hope for more targeted treatments. Genetic and molecular profiling enables clinicians to tailor treatments to an individual’s unique risk factors, including gene therapies for hereditary conditions. These comprehensive strategies are essential for reducing the global burden of visual impairment and enhancing the quality of life for those affected.