Table 2.
Causes of childhood blindness across various regions over time
| Authors | Year | Population | State/s, UT | Major cause of blindness | Second Major cause |
|---|---|---|---|---|---|
| Rahi JS et al. (13) | 1999 | 1318 | 9 states across India | Cornea (26.4%) | WG (20.7%) |
| Hornby SJ et al. (16) | 2000 | 291 | Andhra Pradesh | Retina (31.1%) | Cornea (24.3%) |
| Titiyal JS et al. (17) | 2003 | 703 | Delhi | WG (27.4%) | Cornea (21.7%) |
| Gogate P et al. (18) | 2007 | 1778 | Maharashtra | CA (41.3%) | Cornea (22.2%) |
| Bhattacharjee H et al. (19) | 2008 | 258 | 4 North East States | Cornea (36.7%) | CA (36.1%) |
| Krishnaiah S et al. (20) | 2012 | 113 | Andhra Pradesh | CA (41.4%) | Retina (18.9%) |
| Bhalerao SA et al. (21) | 2015 | 90 | Allahabad | WG (54.4%) | Cornea (24.5%) |
| Prakash MV et al. (22) | 2017 | 302 | Tamil Nadu (Chennai) | Optic Nerve (25.8%) | Retina (18.2%) |
| Present Study | 2019 | 515 | 8 North East States | WG (44.85%) | Cornea (17.66%) |
WG: Whole globe; CA: Congenital anomalies