Research & Innovation
Mr Ratnarajan is a leading clinical scientist and publishes regularly in high impact international peer-reviewed journals and presents his research all over the world.
Below is a list of Mr Ratnarajan’s research and prizes.
- Best Paper International Congress Glaucoma Society 2018
- Royal College of Ophthalmologist’s Keeler Scholarship 2016
- Best Poster UKEGS 2015
- Gold medal UKISCRS 2015
- Best Cataract Paper UKISCRS 2015
- HCA International Foundation Grant for Minimally Invasive Glaucoma Surgery 2015
- European Glaucoma Panel ARVO Presentation Prize, 2015
- Best of the Best Presentation ESCRS, 2012
- National Institute for Health Research Flexibility and Sustainability award, 2012
Publications
- Qidwai U, Jones L, Ratnarajan G. A comparison of iStent combined with phacoemulsification and endocyclophotocoagulation (ICE2) with the PreserFlo MicroShunt and XEN-45 implants in the United Kingdom. Ther Adv Ophthalmol 2022, Oct. doi 10.1177/25158414221135697
- Pantalon AD, Barata ADO, Georgopoulos M, Ratnarajan G. Outcomes of phacoemulsification combined with two istent inject trabecular microbypass stents with or without endocycclophotocoagulation. Br J Ophthalmol 2020 Oct; 104(10): 1378-1383. doi 10.1136/bjophthalmol-2019-315434.
- Szigiato AA, Sandhu S, Ratnarajan G, Dorey MW, Ahmed IIK. Surgeon perspectives on learning ab-interno gelatin microstent implantation. Can J Ophthalmol. 2018 Jun;53(3):246-251. doi: 10.1016/j.jcjo.2017.10.005.
- Ratnarajan G, Jolly JK, Yusuf IH, Salmon JF. The effect of trabeculectomy surgery on the central visual field in patients with glaucoma using microperimetry and optical coherence tomography. Eye (Lond). 2018 Apr 30. doi: 10.1038/s41433-018-0095-2.
- Yusuf IH, Jolly JK, Ratnarajan G, Salmon JF. Microperimetry and optical coherence tomography imaging in the fellow eye of patients with unilateral focal ischaemic glaucoma. Eye (Lond). 2018 Apr 30. doi: 10.1038/s41433-018-0094-3.
- Sherwin JC, Ratnarajan G, Elahi B, Bilkiewicz-Pawelec A, Salmon JF. Effect of a punctal plug on ocular surface disease in patients using topical prostaglandin analogues: a randomized controlled trial. Clin Exp Ophthalmol. 2018 Apr 26. doi: 10.1111/ceo.13311.
- King C, Sherwin JC, Ratnarajan G, Salmon JF. Twenty-year outcomes in patients with newly diagnosed glaucoma: mortality and visual function. Br J Ophthalmol. 2018 Mar 3. pii: bjophthalmol-2017-311595. doi: 10.1136/bjophthalmol-2017-311595.
- Mohamed-Noriega J, Scott A, Pinto LA, Rousseau A, Garway-Heath D; Writing Committee for the International Glaucoma Panel. Cautious interpretation of the associations between systemic hypertension, antihypertensive medications and the risk of developing glaucoma. J Hypertens. 2017 Nov;35(11):2328-2329. doi: 10.1097/HJH.0000000000001537.
- Yusuf IH, Ratnarajan G, Kerr RS, Salmon JF. Normal-Tension Glaucoma and Low Cerebrospinal Fluid Pressure. J Glaucoma. 2017 Mar;26(3):e133-e134.
- Author’s reply. Lawrenson JG, Baker H, Ratnarajan G, Harper RA, Edgar DF. Ophthalmic Physiol Opt. 2017 Jan;37(1):113-114. doi: 10.1111/opo.12347. No abstract available.
- Baker H, Ratnarajan G, Harper RA, Edgar DF, Lawrenson JG. Effectiveness of UK optometric enhanced eye care services: a realist review of the literature. Ophthalmic Physiol Opt. 2016 Sep;36(5):545-57. doi: 10.1111/opo.12312. Review.
- Yusuf IH, Ratnarajan G, Kerr RS, Salmon JF. Juvenile-onset Normal Tension Glaucoma from Chronic Recurrent Low Cerebrospinal Fluid Pressure. J Glaucoma. 2016 Aug;25(8):e738-40.
- Ratnarajan G, Thompson A, Dodridge C, Parry A, Elston J. Novel variant of Miller Fisher syndrome occurring with tumour necrosis factor alpha antagonist therapy. JAMA Neurology 2015 Nov 1;72(11):1377-1378.
- Ratnarajan G, Hirn C, Normando E, Poli M, Scott A, Munoz M, Karmiris T, Garway-Heath D. Comparison of risk factor profiles for primary open angle glaucoma subtypes defined by pattern of visual field loss: true risk factors or arbituary definition? Invest Ophthalmol Vis Sci 2015 Oct 1;56(11):6531.
- Jayaram H, Pinto LA, Prokosch V, Matlach J, Skonieczna K, Mercieca K, Digiuni M, Mocan MC, Mahave S, Andersson S, Ratnarajan G, Garway-Heath DF; Writing Committee for the European Glaucoma Panel. Circadian Arterial Blood Pressure Variation and Glaucoma Progression: More Questions Than Answers? Am J Hypertens. 2015 Sep;28(9):1182-3.
- Ratnarajan G, Kean J, French K, Parker M, Bourne R. The false negative rate and the role for virtual review in a nationally evaluated glaucoma referral refinement scheme. Ophthalmic & physiological optics : the journal of the British College of Ophthalmic Opticians (Optometrists) 2015 Sep;35(5):577-81.
- Ratnarajan G, Coombes E, Jones A, Parker M, Bourne R. The equity profile of an enhanced optometry scheme. Ophthalmic and Physiological Optics: the journal of the British College of Ophthalmic Opticians (Optometrists) 2015; 35: 243–44.
- Ratnarajan G, Alexander I, Cuthertson F et al. Impact of Cataract Surgery on Sleep in Patients Receiving either Ultra-Violet Blocking or Blue-Filtering Intraocular Lens Implants. Invest Ophthalmol Vis Sci. 2014 Jun 26. pii: IOVS-14-14054.
- Ratnarajan G, Somner J, Coombes E, Jones A, Bourne R. Awareness of sight-testing entitlements in patients referred for suspected glaucoma. Eye (Lond) 2014;28(4):504-5.
- Ratnarajan G, Wormald R, Astbury N. The NHS Act of 1951; is it time to re-act? Eye (Lond) 2013;27(6):685-7.
- Ratnarajan G, Newsom W, Vernon SA, et al. The effectiveness of schemes that refine referrals between primary and secondary care--the UK experience with glaucoma referrals: the Health Innovation & Education Cluster (HIEC) Glaucoma Pathways Project. BMJ open 2013;3(7).
- Ratnarajan G, Calladine D, Bird KJ, Watson SL. Delayed presentation of severe ocular injury from a button battery. BMJ case reports 2013;2013.
- Ratnarajan G, Wormald R. Peep into policy, politics, Parliament. Perspectives in public health 2013;133(1):7.
- Ratnarajan G, Newsom W, French K, et al. The impact of glaucoma referral refinement criteria on referral to, and first-visit discharge rates from, the hospital eye service: the Health Innovation & Education Cluster (HIEC) Glaucoma Pathways project. Ophthalmic & physiological optics: the journal of the British College of Ophthalmic Opticians (Optometrists) 2013;33(2):183-9.
- Ratnarajan G, Newsom W, French K, et al. The effect of changes in referral behaviour following NICE guideline publication on agreement of examination findings between professionals in an established glaucoma referral refinement pathway: The Health Innovation & Education Cluster (HIEC) Glaucoma Pathways project. The British journal of ophthalmology 2012; 97(2):210-4.
- Ratnarajan G, Nath R, Appaswamy S, Watson SL. Intravitreal injections using a novel conjunctival mould: a comparison with a conventional technique. The British journal of ophthalmology 2012; 97(4):395-7.
- Ratnarajan G, Packard R, Ward M. Combined occlusion-triggered longitudinal and torsional phacoemulsification during coaxial microincision cataract surgery: effect on 30-degree mini-flared tip behavior. Journal of cataract and refractive surgery 2011;37(5):825-9.
- Ratnarajan G, Mellington F, Saldanha M, de Silva SR, Benjamin L. Long-term visual and retinopathy outcomes in a predominately type 2 diabetic patient population undergoing early vitrectomy and endolaser for severe vitreous haemorrhage. Eye (Lond) 2011;25(6):704-8.
- Ratnarajan G, Calladine D, Watson SL. Cross-action capsulorhexis forceps for coaxial microincision cataract surgery. Journal of cataract and refractive surgery 2011;37(8):1559-60.
- Calladine D, Ratnarajan G, McAllister J. New polyethylene glycol 'hydrogel bandage' technique to cover the conjunctival-limbal wound in fornix-based trabeculectomy surgery. Clinical & experimental ophthalmology 2011;39(9):921-3.
- One year outcomes of minimally invasive glaucoma surgery on the quality of life and ocular surface in glaucoma patients.
Presented at the European Society of Cataract and Refractive Surgeons Milan, Italy. September 2022 - The role of ECP in modern glaucoma management. Presented at the European Society of Cataract and Refractive Surgeons Milan, Italy. September 2022
- 2 year surgical outcomes for istent combined with ECP and Preserflo microshunt and Xen 45. Presented at the European Society of Cataract and Refractive Surgeons Milan, Italy. September 2022
- Smart app to predict best personalized minimally invasive glaucoma treatment. Presented at European Glaucoma Society. Athens, Greece. June 2022
- Managing complications with the Hydrus microstent. Presented at the International congress for Glaucoma surgery. Geneva, Switzerland. May 2022
- The impact of Minimally invasive glaucoma surgery on the quality of life and ocular surface in glaucoma patients – 4-month outcomes.
Presented at the American Glaucoma society meeting. Nashville, USA. March 2022 - Management of a dislocated IOL in Glaucoma patient.
Presented at UK and Ireland Glaucoma surgery meeting Virtual meeting. November 2021 - Innovations in glaucoma surgery.
Presented at UK and Ireland Glaucoma surgery meeting Glasgow, UK. November 2020