pui theng yong, zainora mohammed, norliza mohamad fadzil, mohd harimi abd rahman, mohd izzuddin hairol, sharanjeet-kaur, sumithira narayanasamy.  (2024).  does the optimal level of illumination improve both visual functions and visual comfort in schoolchildren with low vision?.  - plos one.  1 - 18. 

mariah asem, sumithira narayanasamy, mahadir ahmad, masne kadar, mohd izzuddin hairol.  (2023).  association between visual perception and socioeconomic status in malaysian preschool children: results from the test of visual perceptual skills-4.  - children.  1-11. 

mohd harimi abd rahman, prashanti amirtharatnam, sharanjeet sharanjeet-kaur, sumithira narayanasamy, hanif farhan mohd rasdi, mae-lynn catherine bastion.  (2023).  development of knowledge, attitude and practice questionnaire for age-related macular degeneration patients.  - international journal ophthalmology.  82-93. 

thilageswary chellapan, norlaila binti mat daud, sumithira narayanasamy.  (2023).  smartphone use on accommodation and vergence parameters: a systematic review.  - malaysian journal of medicine and health sciences.  325-333. 

humairah kamaruddin, naufal nordin, nurlin erlina abdul-manap, sumithira narayanasamy, sharanjeet-kaur & mohd izzuddin hairol.  (2022).  association between socioeconomic status and vision screening outcomes among preschool children in klang valley, malaysia: a cross-sectional study.  - the malaysian journal of medical sciences.  102-113. 

mohd izzuddin hairol, naufal nordin, jacqueline png, sharanjeet-kaur, sumithira narayanasamy, manisah mohd-ali, mahadir ahmad & masne kadar.  (2021).  association between reduced visual-motor integration performance and socioeconomic factors among preschool children in malaysia: a cross-sectional study.  - plos one.  1-16. 

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. 

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. 

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.  . 

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. 

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. 

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. 

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.