全球隐形眼镜市场前景预测(2020-2025年)
According to the International Classification of Diseases - 10 (ICD-10), vision function
is classified into four broad categories - normal vision, moderate vision impairment,
severe vision impairment, and blindness. Visual impairment is a broad term, which
involves moderate or severe vision loss or complete blindness. It is a global health
concern that has a negative impact on both physical and mental health. Preventive
blindness, which was considered among common ailments, will soon emerge as a
major challenge to the global healthcare system.
Blindness and visual impairment necessitate high costs as they not only constitute
great productivity loss but also increase the burden on healthcare spending
significantly. According to the International Agency for the Prevention of Blindness
(IAPB), about 36 million people were categorized as blind, and about 217 million
people were estimated to suffer from moderate to severe visual impairment (MVSI)
in 2014. According to the World Health Organization (WHO), uncorrected errors,
especially myopia, hyperopia, or astigmatism, constituted 43% of overall visual
impairment cases in 2014.