shelley hopkins, sumithira narayanasamy, stephen j vincent, geoff p sampson, joanne m wood.  (2020).  do reduced visual acuity and refractive error affect classroom performance?.  - clinical and experimental optometry.  278-289. 

izzah azreena azizan , eg yue qi, sharanjeet kaur, sumithira narayanasamy.  (2020).  visual acuity demands of different language mediums in modern primary school classrooms in malaysia.  - f1000 research.  1-12. 

wan nur amirah ibrahim, zainora mohammed, norliza mohamad fadzil, sumithira narayanasamy, mohd izzuddin hairol.  (2018).  perubahan tahap pencahayaan dalam bilik darjah di sebuah sekolah pendidikan khas cacat penglihatan dan perbandingan tahap pencahayaan di bawah keadaan pencahayaan yang berbeza.  - sains malaysiana.  . 

sumithira narayanasamy.  (2017).  the test of visual-perceptual skills (non-motor)- revised (tvps-r) performance among sample of year-2 students in klang valley.  - medical journal of malaysia.  33. 

mohamad fadzil n, mohamed d, mohammed z, narayanasamy s.  (2017).  accommodation and convergence demand and reserves among visually impaired school children.  - medical journal of malaysia.  35. 

ibrahim wna, mohammed z, mohamad fadzil n, narayanasamy s.  (2017).  change in visual acuity and contrast sensitivity of visually impaired schoolchildren under various illumination levels.  - medical journal of malaysia.  25. 

sumithira narayanasamy, stephen j vincent, geoff p sampson, joanne m wood.  (2016).  visual demands in modern australian primary school classrooms.  - clinical and experimental optometry.  233-240. 

sharanjeet-kaur, noor islam ramli, sumithira narayanasamy.  (2012).  heredity factor in myopia development among a sample in klang valley, malaysia.  - chinese medical journal.  125(19):3522-3525.