Table 3

Effective cataract surgical coverage (eCSC) and CSC persons, by age and gender, in Theni population (n=7127)

Age, yearsSample sizeSample size with complete dataNo of persons (n)eCSC*CSC†Quality gap (1−eCSC/CSC)
abcde
40–4926022601142420311954.372.90.26
50–591999198328111501286657.073.00.22
60–6915841569492409130111157.577.90.26
70–79755744202044928811050.175.40.34
80 and over187184106418853553.674.60.28
Gender
Male30042981582449931311257.678.60.27
Female412340946339912952022952.673.90.29
Total 71277075 121 643 228 833 341 54.5 75.7 0.28
  • a: Individuals with unilateral operated cataract attaining PVA≥6/12 in the operated eye, who have BCVA<6/12 in the other eye.

  • b: Individuals with bilateral operated cataract attaining PVA≥6/12 in at least one eye.

  • c: Individuals with unilateral operated cataract (regardless of VA in the operated eye) and BCVA<6/12 in the other eye.

  • d: Individuals with bilateral operated cataract, regardless of VA in the operated eyes.

  • e: Individuals with BCVA<6/12 in both eyes with cataract as the main cause of vision impairment or blindness in one or both eyes.

  • *ECSC is defined as [(a+b)/(c+d+ e)]×100.

  • †CSC is defined as [(c+d)/(c+d+ e)]×100.

  • BCVA, best-corrected visual acuity; PVA, presenting visual acuity.