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 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. 

shazrina ariffin, saadah mohamed akhir, sumithira narayanasamy.  (2024).  development and validation of a novel questionnaire regarding vision screening among preschool teachers in malaysia.  - international journal of ophthalmology.  1102 - 1109. 

thilageswary chellapan, norlaila mat daud, sumithira narayanasamy.  (2024).  smartphone use patterns and the impact on accommodation and convergence system of the eyes among malaysian teenagers.  - international journal of ophthalmology.  2093 - 2099. 

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. 

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.  . 

prema muthiah, sharanjeet-kaur, mohd izzuddin hairol, saadah mohamed akhir, sumithira narayanasamy .  (2025).  the practice of primary eye care by optometrists worldwide - a systematic literature review.  - iium medical journal malaysia (imjm).  23 - 30. 

thilageswary chellapan, norlaila mat daud, sumithira narayanasamy.  (2024).  smartphone use patterns and the impact on accommodation and convergence system of the eyes among malaysian teenagers.  - international journal of ophthalmology.  2093 - 2099. 

prema muthiah , sharanjeet sharanjeet-kaur , mohd izzuddin hairol , saadah mohamed akhir , sumithira narayanasamy.  (2024).  development, validity, and reliability of the primary eye care questionnaire (pecq) among optometrists in malaysia.  - cureus.  1 - 26. 

shazrina ariffin, saadah mohamed akhir, sumithira narayanasamy.  (2024).  development and validation of a novel questionnaire regarding vision screening among preschool teachers in malaysia.  - international journal of ophthalmology.  1102 - 1109. 

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. 

mohammed, z., narayanasamy, s., mutalib, h.a., kaur, s., ariffin, s.r..  (2011).  learning styles preferences among third year optometry students of universiti kebangsaan malaysia.  - kongres pengajaran dan pembelajaran ukm, 2010; tanjung keling, melaka (procedia - social and behavioral sciences).  . 

sumithira narayanasamy.  (2023).  penjagaan mata dan covid-19.  - .  132-147. 

sumithira narayanasamy.  (2023).  penjagaan mata dan covid-19.  - .  132-147. 

razinah binti sharif @ mohd sharif;rozilawati binti ahmad;wan syafira binti ishak;noor hazfalinda binti hamzah;hanis mastura binti yahya;siti fathiah binti masre;nurul huda binti razalli;sumithira a/p narayanasamy;lee onn wah;nurul farahana binti kamaludi.  (2021).  jaringan kolaborasi strategik bersama kementerian pendidikan malaysia dan industri bagi pembudayaan inovasi dalam sains kesihatan di malaysia.  - .  . 

sumithira a/p narayanasamy;sharanjeet kaur a/p malkeet singh.  (2020).  kajian keperluan akuiti visual di bilik darjah sekolah rendah di lembah klang.  - .  . 

razinah sharif,rozilawati ahmad, wan syafira ishak, noor hazfalinda hamzah, hanis mastura yahya, siti fathiah masre, nurul huda razalli, sumithira a/p narayanasamy, lee onn wah, nurul farahana kamaludin, chu shin ying, nor afifi razaob, nur najmi.  (2020).  pembelajaran stem dari perspektif sains kesihatan.  - .  1-140. 

sumithira a/p narayanasamy;mohd harimi bin abd. rahman.  (2020).  kajian rintis data normatif ujian development eye movement dalam kalangan kanak-kanak di kuala lumpur.  - .  . 

sumithira narayanasamy, nurul mardhiah azman.  (2025).  learning styles and academic performance of optometry student:an impact of gender and race.  - international conference on teaching and learning in health sciences education (intlec) 2025.  . 

woi pui juan, aishah farzana binti abu naser md feroz, mizhanim binti mohamad shahimin, sumithira narayanasamy .  (2025).  clinical learning in optometry: final-year students’ perceptions of internal and mixed-mode learning at universiti kebangsaan malaysia.  - international conference on teaching and learning in health sciences education (intlec) 2025.  . 

mizhanim mohamad shahimin, norhafizah mohamed arif, woi pui juan, sumithira narayanasamy.  (2025).  the impact of a clinical contact lens self-learning module on optometry student competency based on the cognitive, affective, and psychomotor domains.  - international conference on teaching and learning in health sciences education (intlec) 2025.  . 

yong pui theng, zainora mohammed, norliza mohamad fadzil, mohd harimi abd rahman, mohd izzuddin hairol, sumithira narayanasamy.  (2024).  assessment of textbook font sizes for children with low vision in malaysia: a study on near acuity demand.  - the 24th apoc 2024.  . 

sumithira narayanasamy, tan yong xuan.  (2023).  knowledge and attitude towards refractive error among fsk undergraduate students and the contributing sociodemographic factors.  - 4th optometry scientific conference (4th osc 2023).  35.