Sagnik Sen

Dr. Sagnik Sen

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Research Focus & Metrics

Academic Career Length

10Years (2017-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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9 March 2020 in Eye
Verified
Journal Article
Closed access
PDF file
SSSagnik Sen
Sagnik Sen
RSRohit Saxena
Rohit Saxena
MTManjari Tripathi
Manjari Tripathi
DVDeepti Vibha
Deepti Vibha
RDRebika Dhiman
Rebika Dhiman

1 July 2022 in Progress in Retinal and Eye Research
Verified
Journal Article
Closed access
CCChui Ming Gemmy Cheung
Chui Ming Gemmy Cheung
AFAmani A. Fawzi
Amani A. Fawzi
KTKelvin Yc. Teo
Kelvin Yc. Teo
HFHisashi Fukuyama
Hisashi Fukuyama
SSSagnik Sen
Sagnik Sen
SSSobha Sivaprasad
Sobha Sivaprasad

11 August 2021 in International Ophthalmology
Verified
Journal Article
Closed access
PDF file
SSSagnik Sen
Sagnik Sen
NKNaresh Babu Kannan
Naresh Babu Kannan
JKJayant Kumar
Jayant Kumar
RRRenu P. Rajan
Renu P. Rajan
KKKarthik Kumar
Karthik Kumar
KRKim Ramasamy
Kim Ramasamy

1 January 2020 in Indian Journal Of Ophthalmology
Verified
Journal Article
Open access
PDF file
PKPiyush Kohli
Piyush Kohli
NBNaresh Babu
Naresh Babu
CMChitaranjan Mishra
Chitaranjan Mishra
SSSagnik Sen
Sagnik Sen
DADhipak Arthur
Dhipak Arthur
KRKim Ramasamy
Kim Ramasamy
Purpose: To evaluate the effect of COVID-19 pandemic and national lockdown on patient care at a tertiary-care ophthalmology institute. Methods: Records of all the patients who presented from March 25th to May 3rd, 2020 were scanned to evaluate the details regarding the presenting complaints, diagnosis, advised treatment and surgical interventions. Results: The number of outpatient department visits, retinal laser procedures, intravitreal injections and cataract surgeries during this lockdown decreased by 96.5%, 96.5%, 98.7% and 99.7% respectively compared from the corresponding time last year. Around 38.8% patients could be triaged as non-emergency cases based on history alone while 59.5% patients could be triaged as non-emergency cases after examination. Only eighty-four patients opted for video-consultation from April 15th to May 3rd, 2020. Nine patients presented with perforated corneal ulcer, but could not undergo penetrating keratoplasty due to the lack to available donor corneal tissue. One of these patients had to undergo evisceration due to disease progression. Two patients with open globe injury presented late after trauma and had to undergo enucleation. Around 9% patients could not undergo the advised urgent procedure due to logistical issues related to the lockdown. Conclusion: A significant number of patients could not get adequate treatment during the lockdown period. Hospitals need to build capacity to cater to the expected patient surge post-COVID-19-era, especially those requiring immediate in-person attention. A large number of patients can be classified as non-emergency cases. These patients need to be encouraged to follow-up via video-consultation to carve adequate in-person time for the high-risk patients.

7 July 2021 in Eye
Verified
Journal Article
Open access
PDF file
SSSagnik Sen
Sagnik Sen
PSPallavi Singh
Pallavi Singh
RSRohit Saxena
Rohit Saxena
Amblyopia is a cause of significant ocular morbidity in pediatric population and may lead to visual impairment in future life. It is caused due to formed visual deprivation or abnormal binocular interactions. Several risk factors in pediatric age group may lead to this disease. Author groups have tried managing different types of amblyopia, like anisometropic amblyopia, strabismic amblyopia and combined mechanism amblyopia, with optical correction, occlusion therapy, penalization, binocular therapy and surgery. We review historical and current management strategies of different types of amblyopia affecting children and outcomes in terms of visual acuity, binocularity and ocular deviation, highlighting evidence from recent studies. Literature searches were performed through Pubmed. Risk factors for amblyopia need to be identified in pediatric population as early in life as possible and managed accordingly, as visual outcomes in amblyopia are best if treated at the earliest. Although, monocular therapies like occlusion or penalization have been shown to be quite beneficial over the years, newer concepts related to binocular vision therapy are still evolving.

18 June 2025 in Nature Machine Intelligence
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Journal Article
Open access
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NPNikolas Pontikos
Nikolas Pontikos
WWWilliam A. Woof
William A. Woof
SLSiying Lin
Siying Lin
BGBiraja Ghoshal
Biraja Ghoshal
BMBernardo S. Mendes
Bernardo S. Mendes
MMMichel Michaelides
Michel Michaelides
Rare eye diseases such as inherited retinal diseases (IRDs) are challenging to diagnose genetically. IRDs are typically monogenic disorders and represent a leading cause of blindness in children and working-age adults worldwide. A growing number are now being targeted in clinical trials, with approved treatments increasingly available. However, access requires a genetic diagnosis to be established sufficiently early. Critically, the timely identification of a genetic cause remains challenging. We demonstrate that a deep learning algorithm, Eye2Gene, trained on a large multimodal imaging dataset of individuals with IRDs (n = 2,451) and externally validated on data provided by five different clinical centres, provides better-than-expert-level top-five accuracy of 83.9% for supporting genetic diagnosis for the 63 most common genetic causes. We demonstrate that Eye2Gene’s next-generation phenotyping can increase diagnostic yield by improving screening for IRDs, phenotype-driven variant prioritization and automatic similarity matching in phenotypic space to identify new genes. Eye2Gene is accessible online (app.eye2gene.com) for research purposes.