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A/Prof Ray Manotosh

  • Senior Consultant, Department of Ophthalmology, National University Hospital
  • Associate Professor, Department of Ophthalmology, Yong Loo Lin School of Medicine, National University of Singapore
Ophthalmology (Eye)
Cataract, Cornea, General Ophthalmology, Refractive Surgery
Special Interests:
Cornea and External Eye Diseases, Cataract, Refractive Surgery, General Ophthalmology


A/Prof Ray Manotosh is currently a Senior Consultant in Ophthalmology at National University Hospital. His field of specialisation is in Cornea, External eye diseases, Cataract, Contact Lens and Refractive Surgery. Concurrently, he is the Associate Professor and Education Director at the Department of Ophthalmology, Yong Loo Lin School of Medicine, National University of Singapore.

He completed his basic surgical training (MD) at All India Institute of Ophthalmic Sciences (AIIMS), New Delhi, India in 1997. Subsequently, he went through advanced surgical training in the field of Cornea and External Eye diseases at AIIMS, and later attained his Fellowship in Ophthalmology from Royal College of Surgeons of Edinburgh (UK).

A/Prof Ray has published many peer reviewed journals. He has co-authored two medical books. One of the books, “Essentials of Ophthalmology: For Medical School and beyond”, was nominated as one of the best Ophthalmology books in Ophthalmology. He also attained the National Healthcare Group Excellence award for teaching in 2006.

Journals & Publications

Selected Publications:
1. Y Lai, G Sundar, R Manotosh. Surgical treatment outcome of medically refractory huge giant papillary conjunctivitis. Am J Ophthalmol Case Rep. 2017 Sep; 18(8): 22-24.
2. LH On Annie, R Manotosh. Bilateral simultaneous infective keratitis. Contact Lens Anterior Eye. 2017 (40): 224 - 227.
3. BX Lim, VTC Koh, R Manotosh. Microbial characteristics of post-traumatic infective keratitis. Eur J Ophthalmol. 2018 Jan;28(1):13-18.
4. K Lun, R Manotosh. Keratectasia after presbyopia treatment with INTRACOR. Eye Contact Lens. 2018 Sep (44); Suppl 1: S333-336. 
5. D Ho, C Chai, R Manotosh et al. Optical and Tectonic Corneal Transplant Outcomes in a Tertiary Hospital in Singapore within the Singapore Corneal Transplant Registry. Ann Acad Med Singapore 2018; 47:92-100.
6. WWD Yong, HC Chai, R Manotosh et al. Comparing outcomes of phaxoemulsification with Femtolaser-assisted cataract surgery in patients with Fuch’s Endothelial Dystrophy. Am J Ophthalmol. 2018;173-80.
7. D Ho, C Chai, R Manotosh, D Tan et al. Optical and tectonic corneal transplant outcome in a tertiary hospital in Singapore within Singapore Corneal Transplant Registry. Ann Acad Med Singap. 2018;47(3): 92-100.
8. W Tong, D Chen, C Chai, AM Tan, R Manotosh. Disease patterns of microbial keratitis in Singapore: A retrospective case series. Contact Lens Anterior Eye. 2019; 42(4):455-461.
9. DJ Hernstadt, C Chai, A Tan, R Manotosh. Three-year outcomes of Descemet’s stripping endothlial keratoplasty in eyes with pre-existing glaucoma drainage devices. Canadian J Ophthalmol. 2019;54(5):577-584.
10. WW D Yong, HC Chai, R Manotosh et al. Impact of fibrin glue vs suture closure on double headed pterygia in Asian eyes: A seven-year study in a tertiary Institution. Ann Med. 2021;53(1):448-453.


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