Dr Raju Sapkota

Research Fellow, Vision and Eye Research Unit

Faculty:Faculty of Medical Science

Department:School of Medicine

Location: Cambridge

Areas of Expertise: Vision and eye research

Dr Sapkota's research expertise is in diabetes and diabetic retinopathy in South Asians, as well as attention, eye tracking, visual short-term memory tests, and behavioural markers of early dementia.

raju.sapkota@anglia.ac.uk

Background

Following two-and-a-half years' service as an optometrist at BP Koirala Institute of Health Sciences in Nepal, Dr Sapkota came to the UK. He obtained an MSc in Investigative Ophthalmology and Vision Science from the University of Manchester (2006), and PhD from Anglia Ruskin University (2010). Dr Sapkota works as a Research Fellow in our Vision and Eye Research Unit.

Dr Sapkota has published findings in high-impact journals, presented papers at several national and international conferences, and obtained a number of research-related grants and awards.

Spoken Languages

  • English
  • Nepali
  • Hindi

Research interests

  • Use of visual short-term memory tests as marker of early cognitive decline in Alzheimer’s
  • How do non-clinical (knowledge, awareness, life-style, self-help) and clinical parameters (blood sugar, blood pressure, HbA1c levels) relate to severity of retinopathy in South Asian diabetic patients?
  • Efficacy of paper-based user-friendly tests of visual functions for self-monitoring of eye conditions at home
  • Barriers to self-help and diabetic awareness amongst South Asians living in the UK
  • Eye complications of UV and blue light

Areas of research supervision

Raju has supervised five summer students to date.

Qualifications

  • Doctor of Philosophy (2007-2010), Anglia Ruskin University, UK
  • MSc in Investigative Ophthalmology & Vision science (2005-2006), University of Manchester, UK
  • Bachelor in Optometry (1998-2002), Institute of Medicine, Tribhuvan University, Nepal

Memberships, editorial boards

  • Member, Vision Science Society (2009, 2010, 2012, 2013, 2018)
  • Member, The Association of Research in Vision and Ophthalmology (2017)
  • Member, Applied Vision Association (2008-2010)
  • Dementia Research, UK
  • Member, British Congress of Optometry and Visual Science (2014-2016)

Research grants, consultancy, knowledge exchange

  • Anglia Ruskin University RIDO travel grant (£2000) - 2017 plus 2018
  • Anglia Ruskin University Faculty of Medical Science networking grant (£1000), 2017
  • Nuffield Summer Research Student Placement, 2016
  • Faculty (Faculty of Health, Social Care & Education) summer studentship (£2000), Anglia Ruskin University, 2014
  • Patrick Geoghegan Health & Wellbeing Academy fund (£67,616, with Professor S Pardhan), 2014
  • Cambridge Research System travel award (£150) to present at a conference at University of East Anglia, 2014
  • HR postdoc support fund (£150), 2014
  • Nuffield Summer Research Student Placement, 2013
  • Anglia Ruskin University, RDCS, The UK Research Development fund (£500), 2012
  • The 'Guarantors of Brain' travel grant (£800), 2012
  • Faculty (Science & Technology) summer studentship (£2000), Anglia Ruskin University, 2011
  • Winner of the best paper presentation (£250) at the research student conference, Anglia Ruskin University, 2010
  • Experimental Psychology Society's Grindly Grant (£500), 2009
  • Applied Vision association travel grant (£100), 2008

Selected recent publications

Sapkota, R.P, Upadhyaya, T., Gurung, G., Raman, R., and Pardhan S., 2018. Need to improve awareness and treatment compliance in high-risk patients for diabetic complications in Nepal. BMJ Open Diabetes Research and Care, 6:e000525. doi:10.1136/bmjdrc-2018-000525.

Pardhan, S., Nakafero, G., Raman, R., and Sapkota, R., 2018. Barriers to diabetes awareness and self-help are influenced by people's demographics: perspectives of South Asians with type 2 diabetes. Ethnicity and Health, 26:1-19. doi: 10.1080/13557858.2018.1455809. [Epub ahead of print]

Sapkota, R.P., van der Linde, I., Lamichhane, N., Upadhyaya, T. and Pardhan, S, 2017. Patients with mild cognitive impairment show lower visual short-term memory performance for feature binding tasks. Dementia and Geriatric Cognitive Disorders: Extra, 7, pp74–86. doi:10.1159/000455831.

Pardhan, S. and Sapkota, R., 2016. Eye complications of exposure to blue-violet light, Points de Vue, International Review of Ophthalmic Optics, www.pointsdevue.com, September 2016.

Sapkota, R.P., Pardhan, S. and van der Linde I., 2016. Spatiotemporal Proximity Effects in Visual Short-Term Memory Examined by Target-Non-target Analysis. Journal of Experimental Psychology: Learning, Memory, and Cognition, 42, pp1304-1315.

Sapkota, R., Pardhan, S. and van der Linde, I., 2015. Change detection in visual short-term memory: the relative impact of pairwise switches and identity substitutions. Experimental Psychology, 62, pp232-239.

Sapkota, R., van der Linde, I. and Pardhan, S., 2015. How does aging affect the types of error made in a visual short-term memory 'object-recall' task? Frontiers in Aging Neuroscience, 6(346). doi: 10.3389/fnagi.2014.00346.

Sapkota, R. & Pardhan, S., 2015. Eye diseases and smoking. B Positive, Indian National, March, 54-55.

Sapkota, R., Pardhan, S., and van der Linde, I., 2013. Manual tapping enhances visual short-term memory performance where visual and motor coordinates correspond, British Journal of Psychology, 104, pp249-264.

Sapkota, R., Pardhan, S. and van der Linde, I., 2011a. The impact of extra-foveal information on visual short-term memory for object-position. Journal of Cognitive Psychology, 23, pp574-585.

Sapkota, R., Pardhan, S. and van der Linde, I., 2011b. Object-position binding in visual short-term memory for sequentially presented unfamiliar stimuli. Perception, 40, pp538-548.

Recent presentations and conferences

Sapkota, R., Upadhyaya, T., Gurung, G., Biswas, A., Durgasri, J., Raman, R., Pardhan, S. (2017). Clinical and non-clinical factors predicting retinopathy severity in patients attending three different diabetic eye clinics in India and Nepal. The Association of Research in Visio and Ophthalmology, Baltimore, MD, May 7-11, 2017. Investigative Ophthalmology & Visual Science, 58, 70.

Chen, Z., Sapkota, R., Zheng, D., Pardhan, S. (2017). The need for early retinopathy screening and improved awareness in diabetic patients in Hangzhou, China. The Association of Research in Visio and Ophthalmology, Baltimore, MD, May 7-11, 2017. Investigative Ophthalmology & Visual Science, 58, 79.

Robson, J., Raman, R., Durgasri, J., Sapkota, R., Pardhan, S. (2017). Contrast sensitivity measured with illiterate single-use printed paper charts to assess the severity of diabetic retinopathy. The Association of Research in Visio and Ophthalmology, Baltimore, MD, May 7-11, 2017. Investigative Ophthalmology & Visual Science, 58, 4698.

Robson J, Sapkota R, Kidd J, Newman D, & Pardhan S (2016). Self-assessment of visual function using new single-use printed charts. The Association of Research in Visio and Ophthalmology, Seattle, Washington, May 1-5, 2016. Investigative Ophthalmology & Visual Science, 57, 12.

Sapkota, R., van der Linde, I. and Pardhan, S. (2014), Effect of age on the types of error made in a visual short-term memory ‘object-recall’ task. British Congress for Optometry and Vision Science, September 8-9, Cardiff, Wales. Ophthalmic and Physiological Optics, 34, 684.

Pardhan, S., Sapkota, R., & van der Linde, I. (2014). How does ageing affect visual short-term memory for identifying objects in their spatial locations? The Association for Research in Vision & Ophthalmology, May 4-8, Orlando, Florida. Investigative Ophthalmology and Visual Science, 55, 779.

Sapkota, R., van der Linde, I. and Pardhan, S. (2013), Age difference in visual short-term memory for object recall and location recognition. British Congress for Optometry and Vision Science, September 9-10, Glasgow, Scotland. Ophthalmic and Physiological Optics, 34, 105.

Sapkota, R., Pardhan, S. and van der Linde, I. (2013), Change detection in visual short-term memory: The relative impact of pairwise swaps and object substitutions. Vision Sciences Society, May 10-15, Naples, FL. Journal of Vision 13, 324.

Van der Linde, I., Pardhan, S. and Sapkota, R. (2013), Spatio-temporal priming facilitates visual short-term memory only in a forward direction. Vision Sciences Society, May 10-15, Naples, FL. Journal of Vision, 13, 328.

Sapkota, R., Pardhan, S. and van der Linde, I. (2012), A load-specific influence of stimulus category on short-term memory for object and position. Vision Sciences Society Annual Meeting, May 11-16, Naples, FL. Journal of Vision, 12, 292.

Sapkota, R., Pardhan, S. and van der Linde, I. (2011), Priming effects in visual short-term memory for object position: Evidence for name-addressable object files? 34th European Conference on Visual Perception, August 28 - September 1, Toulouse, France. Perception, 40, 82-83.

Sapkota, R., Pardhan, S. and van der Linde, I. (2010), Feature binding across visual and manual domains: Evidence from a VSTM study. Vision Sciences Society Annual Meeting, May 7-12, Naples, FL. Journal of Vision, 10, 766.

Sapkota, R., Pardhan, S. and van der Linde, I. (2009), Extra-foveal processing in visual short-term memory: Facilitatory or inhibitory? AVA Xmas Meeting, December 19 2008, Bristol, UK. Perception, 38, 467.

Sapkota, R., Pardhan, S. and van der Linde, I. (2009), Dual impact of extra-foveal processing in human visual short-term memory. Vision Sciences Society Annual Meeting, May 8-13, Naples, FL. Journal of Vision, 9, 596.

Sapkota, R., Pardhan, S., Tavassoli, A. and van der Linde, I. (2008), Visual short-term memory for unfamiliar visual stimuli. British Congress for Optometry and Vision Science, September 4-5 2007, Ulster, NI. Ophthalmic and Physiological Optics, 28, 99.

Media experience

Interview with OS Nepal to increase awareness amongst Nepalese on the UV and blue light and their complications in the eye.