Line separator

RESEARCH STUDY

RESEARCH

Effect of Providing Near Glasses on Productivity Among Rural Indian Tea Workers with Presbyopia (PROSPER): A Randomised Trial

AUTHOR:

Priya Adhisesha Reddy, Nathan Congdon, Graeme MacKenzie, Parikshit Gogate, Qing Wen, Catherine Jan, Mike Clarke, Jordan Kassalow, Ella Gudwin, Ciaran O'Neill, Ling Jin, Jianjun Tang, Ken Bassett, David H Cherwek, Rahul Ali

SPONSOR/INSTITUTION:

Clearly & Ulverscroft Foundation (UK)

YEAR PUBLISHED:

2018

PUBLICATION:

The Lancet Global Health

KEY HIGHLIGHTS:

  • Presbyopia, age-related decline in near vision, is the most common cause of vision impairment globally, but no trials have assessed its workplace effects.

  • This trial studies the effect of near glasses on the productivity of 751 tea workers with presbyopia in India.

  • A substantial productivity increase was achieved in this rural cohort by providing glasses to correct presbyopia, with little cost and high intervention uptake.

  • The main study outcome was the difference between randomised groups in the change in mean daily weight of tea picked between the baseline period and the evaluation period.