Khan FA, Khan Niazi SP, Hussain I. COMPARISON OF THE EFFICACY OF HYDROXYPROPYL METHYLCELLULOSE/ DEXTRAN, SODIUM HYALURONATE AND POLYETHYLENE GLYCOL/PROPYLENE GLYCOL BASED COMMERCIAL ARTIFICIAL TEAR PRODUCTS USING THE NONINVASIVE TEAR FILM BREAKUP TIME. Pak Armed Forces Med J [Internet]. 2020 Feb. 29 [cited 2025 May 1];70(1):153-58. Available from: https://www.pafmj.org/PAFMJ/article/view/3954