pui theng yong, norlaili arif, sharanjeet kaur, mohd izzuddin hairol.  (2020).  double eyelid tape wear affects anterior ocular health among young adult women with single eyelids.  - international journal of environmental research and public health.  1-14. 

mohd izzuddin hairol, norazizah abd latif, pui juan woi, nurul hafizah ahmad rashaidi, sharanjeet kaur, sarah j waugh.  (2014).  visual acuity and spatial interaction zones: investigating the periphery in anisometropic amblyopia.  - journal of vision.  772. 

sarah j waugh, monika f formankiewicz, m izzuddin hairol.  (2014).  effects of stimulus duration on foveal crowding using visual acuity letters.  - journal of vision.  787. 

hairol, m.i., formankiewicz, m.a., waugh, s.j..  (2013).  foveal visual acuity is worse and shows stronger contour interaction effects for contrast-modulated than luminance-modulated cs.  - visual neuroscience.  30(3):105-120. 

sarah j waugh, monika a formankiewicz, m izzuddin hairol.  (2012).  contour interaction extents (in mar) for differently-sized cs vary little within, but lots between, lm and cm acuity systems.  - journal of vision.  12(10):101.