Research Article

Astigmatism Associated with Allergic Conjunctivitis in Urban School Children

Table 4

Distribution of myopia and astigmatism in urban and suburban school.

VariablesSuburban (n = 426)Urban (n = 550) value

Allergic conjunctivitis101 (23.7)173 (31.5)0.008
Spherical equivalent−0.52 ± 1.36−0.74 ± 1.590.025
Astigmatism (cylindrical diopter)0.65 ± 0.550.66 ± 0.580.723
Conjunctival papillary hypertrophy152 (35.7)112 (20.4)<0.001