@article{Mazhar-ul-Hassan_2017, title={The Frequency and Causes of Visual Impairment and Blindness among Middle and Older Population}, volume={33}, url={https://pjo.org.pk/index.php/pjo/article/view/80}, DOI={10.36351/pjo.v33i1.80}, abstractNote={<p>Purpose: To estimate the frequency and causes of visual impairment and blindness in middle and older age groups.</p> <p>Study Design: Retrospective study (hospital based data).</p> <p>Place and Duration of Study: Eye department of Dow university hospital (Ojha campus), Dow international medical college, Dow university of health sciences, Karachi, Pakistan </p> <p>Purpose: To estimate the frequency and causes of visual impairment and blindness in middle and older age groups.</p> <p>Study Design: Retrospective study (hospital based data).</p> <p>Place and Duration of Study: Eye department of Dow university hospital (Ojha campus), Dow international medical college, Dow university of health sciences, Karachi, Pakistan</p>}, number={1}, journal={Pakistan Journal of Ophthalmology}, author={Mazhar-ul-Hassan, Farnaz Siddiqui, Saba Alkhairy,}, year={2017}, month={Mar.} }