Patents and Publications - Fours Health

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Our publications highlight groundbreaking developments, best practices, and transformative ideas shaping the future of healthcare. Whether you’re a professional, a student, or a curious mind, this is your destination for staying informed and inspired.

A System and Method for Retinal Imaging , issued by the The Patent Office, Government of India.

Integrated Apparatus For Visual Function Testing And Method thereof.

An Annular Light Source Device For Fundus Cameras.

A Wearable And A System To Determine Corrective Refractive parameters of a subject.

Method And System For Enhancing image Quality.

An Image Processing Method And Apparatus For Correcting an image.

A Method And System For Detecting And Capturing Focused Image.

A Method And System To Identify Intraocular Pressure (IOP) of an eye.

Annular Light Source Device For Neonatal Fundus Cameras.

internal fixation guidance based image stabilization in retinal imaging.

device for generating a toroidal source of illumination.

A portable retinal imaging system.

Apparatus and method for self-correcting objective refractometry.

self-correcting objective refraction using tunable lens.

Annular Light Source Device For Neonatal Fundus Cameras.

A portable retinal imaging system.

internal fixation guidance based image stabilization in retinal imaging.

device for generating a toroidal source of illumination.

method & devices for visual function testing based on tunable-lens refractor & integrated visual stimuli.

An Annular Light Source Device For Fundus Cameras.

A Multi-stage Approach for Cardiovascular Risk Assessment from Retinal Images using an Amalgamation of Deep Learning and Computer Vision Techniques.

Published on: April 29, 2024

A Novel Method Using Deep Learning Technique for Automatic Grading and Classification of Interferometry Video Frames for Dry Eye Analysis.

Published on: April 24, 2024

A Regression-Based Approach to Diabetic Retinopathy Diagnosis Using Efficient Net.

A Regression-Based Approach to Diabetic Retinopathy Diagnosis Using Efficient Net.

Published on: February 17, 2023

$Retinal vascular fractal dimension in bipolar disorder and schizophrenia.$

Retinal vascular fractal dimension in bipolar disorder and schizophrenia.

Published on: December 1, 2019

Retinopathy of prematurity treatment: Asian perspectives.

Retinopathy of prematurity treatment: Asian perspectives.

Published on: October 29, 2019

Retinal vascular tortuosity in schizophrenia and bipolar disorder.

Retinal vascular tortuosity in schizophrenia and bipolar disorder.

Published on: October 6, 2019

Examination of retinal vascular trajectory in schizophrenia and bipolar disorder.

Examination of retinal vascular trajectory in schizophrenia and bipolar disorder.

Published on: August 10, 2019

Performance of a Deep-Learning Algorithm vs Manual Grading for Detecting Diabetic Retinopathy in India.

Performance of a Deep-Learning Algorithm vs Manual Grading for Detecting Diabetic Retinopathy in India.

Published on: June 13, 2019

Imaging the pediatric retina – Where are we headed?

Imaging the pediatric retina – Where are we headed?

Published on: June 1, 2019

A MODEL FOR INTRODUCING GLOBAL IDEAS TO THE U.S.

A MODEL FOR INTRODUCING GLOBAL IDEAS TO THE U.S.

Published on: May 19, 2019

ARTICLE : Reinvention and Adaptation into U.S. Communities of Five Global Health Innovations.

ARTICLE : Reinvention and Adaptation into U.S. Communities of Five Global Health Innovations.

Published on: May 7, 2019

Imaging in Retinopathy of Prematurity.

Imaging in Retinopathy of Prematurity.

Published on: March 1, 2019

Diagnostic accuracy and reliability of retinal pathology using the Forus 3nethra fundus camera compared to ultra wide-field imaging.

Diagnostic accuracy and reliability of retinal pathology using the Forus 3nethra fundus camera compared to ultra wide-field imaging.

Published on: January 24, 2019

Wide-Field Fundus Photography.

Wide-Field Fundus Photography.

Published on: January 8, 2019

BOOK : Pediatric Retinal Vascular Diseases.

BOOK : Pediatric Retinal Vascular Diseases.

Published on: January 6, 2019

Technology and Innovation for Eye Care.

Technology and Innovation for Eye Care.

Published on: December 13, 2018

Economic Barriers in Retinopathy of Prematurity Management.

Economic Barriers in Retinopathy of Prematurity Management.

Published on: December 1, 2018

The Sri Lanka National Blindness, Visual Impairment and Disability Survey: rationale, objectives and detailed methodology.

The Sri Lanka National Blindness, Visual Impairment and Disability Survey: rationale, objectives and detailed methodology.

Published on: October 31, 2018

Prevalence, causes and magnitude of functional low vision in Sri Lanka: results from a national population based survey.

Prevalence, causes and magnitude of functional low vision in Sri Lanka: results from a national population based survey.

Published on: October 31, 2018

Ultra-Widefield Imaging for Pediatric Retinal Disease.

Ultra-Widefield Imaging for Pediatric Retinal Disease.

Published on: June 11, 2018

Frugal innovation in medical devices: Key to growth in emerging economies.

Frugal innovation in medical devices: Key to growth in emerging economies.

Published on: March 18, 2018

Anti–Vascular Endothelial Growth Factor and the Evolving Management Paradigm for Retinopathy of Prematurity.

Anti–Vascular Endothelial Growth Factor and the Evolving Management Paradigm for Retinopathy of Prematurity.

Published on: February 14, 2018

Analysis of yield of retinal imaging in a rural diabetes eye care model.

Analysis of yield of retinal imaging in a rural diabetes eye care model.

Published on: February 1, 2018

Retinal Telemedicine.

Retinal Telemedicine.

Published on: January 29, 2018

Content Design and System Implementation of a Teleophthalmology System for Eye Disease Diagnosis and Treatment and Its Preliminary Practice in Guangdong, China.

Content Design and System Implementation of a Teleophthalmology System for Eye Disease Diagnosis and Treatment and Its Preliminary Practice in Guangdong, China.

Published on: December 1, 2017

Health Care Service Through Internet Communication Technology.

Health Care Service Through Internet Communication Technology.

Published on: July 11, 2017

Industry associations, health innovation systems and politics of development: the cases of India and South Africa.

Industry associations, health innovation systems and politics of development: the cases of India and South Africa.

Published on: January 20, 2017

ARTICLE : Innovations in technology and service delivery to improve Retinopathy of Prematurity care.

ARTICLE : Innovations in technology and service delivery to improve Retinopathy of Prematurity care.

Published on: January 7, 2017

Current Trends in Telemedicine for Retinopathy of Prematurity.

Current Trends in Telemedicine for Retinopathy of Prematurity.

Published on: January 6, 2017

[BOOK] Reverse Innovation in Health Care: How to Make Value-Based Delivery Work.

[BOOK] Reverse Innovation in Health Care: How to Make Value-Based Delivery Work.

Published on: January 3, 2017

An ensemble approach to detect exudates in digital fundus images.

An ensemble approach to detect exudates in digital fundus images.

Published on: January 2, 2017

Wide-Field Digital Imaging Systems in Pediatric Patients.

Wide-Field Digital Imaging Systems in Pediatric Patients.

Published on: January 1, 2017

Design of a Tele-Ophthalmology System for Comprehensive Eye Examination and DR Screening and Its Preliminary Implementation.

Design of a Tele-Ophthalmology System for Comprehensive Eye Examination and DR Screening and Its Preliminary Implementation.

Published on: May 21, 2016

ARTICLE : Pediatric Retina: Advances in Diagnosis and Treatment : Widefield imaging, anti-VEGF agents and shorter instruments expand management options.

ARTICLE : Pediatric Retina: Advances in Diagnosis and Treatment : Widefield imaging, anti-VEGF agents and shorter instruments expand management options.

Published on: March 22, 2016

Fundus Photography in the 21st Century—A Review of Recent Technological Advances and Their Implications for Worldwide Healthcare.

Fundus Photography in the 21st Century—A Review of Recent Technological Advances and Their Implications for Worldwide Healthcare.

Published on: March 14, 2016

BOOK : The Impatient Manager.

BOOK : The Impatient Manager.

Published on: January 2, 2016

Privacy of Health Information in Telemedicine on Private Cloud.

Privacy of Health Information in Telemedicine on Private Cloud.

Published on: January 1, 2016

Reliability of Using Retinal Vascular Fractal Dimension as a Biomarker in the Diabetic Retinopathy Detection.

Reliability of Using Retinal Vascular Fractal Dimension as a Biomarker in the Diabetic Retinopathy Detection.

Published on: January 1, 2016

Evaluation of Visunex Medical’s PanoCamTM LT and PanoCamTM Pro wide-field imaging systems for the screening of ROP in newborn infants.

Evaluation of Visunex Medical’s PanoCamTM LT and PanoCamTM Pro wide-field imaging systems for the screening of ROP in newborn infants.

Published on: January 1, 2016

Use of telemedicine in remote screening for retinopathy in type 2 diabetes.

Use of telemedicine in remote screening for retinopathy in type 2 diabetes.

Published on: December 1, 2015

Efficacy of cost-effective, portable nonmydriatic fundus camera, manufactured in India, to detect retinal pathology in comparison with regular mydriatic fundus camera.

Efficacy of cost-effective, portable nonmydriatic fundus camera, manufactured in India, to detect retinal pathology in comparison with regular mydriatic fundus camera.

Published on: June 16, 2015

BME Trends Around the World : From Baby X to frugal technologies, here’s what biomedical engineers are excited about in 2015.

BME Trends Around the World : From Baby X to frugal technologies, here’s what biomedical engineers are excited about in 2015.

Published on: January 20, 2015

Intellectual Property Protection in India and Implications for Health Innovation: Emerging Perspectives.

Intellectual Property Protection in India and Implications for Health Innovation: Emerging Perspectives.

Published on: January 2, 2015

Mobile admittance of health information with privacy and analysis in telemedicine.

Mobile admittance of health information with privacy and analysis in telemedicine.

Published on: January 1, 2015

The Bottom of the Pyramid Market as a Source for Disruptive Innovations.

The Bottom of the Pyramid Market as a Source for Disruptive Innovations.

Published on: January 1, 2015

BOOK : Frugal Innovation in Healthcare : How Targeting Low-Income Markets Leads to Disruptive Innovation.

BOOK : Frugal Innovation in Healthcare : How Targeting Low-Income Markets Leads to Disruptive Innovation.

Published on: January 1, 2015

Current Impact, Future Prospects and Implications of Mobile Healthcare in India.

Current Impact, Future Prospects and Implications of Mobile Healthcare in India.

Published on: June 2, 2014

$From Unseen to Seen: Tackling the Global Burden of Uncorrected Refractive Errors.$

From Unseen to Seen: Tackling the Global Burden of Uncorrected Refractive Errors.

Published on: June 2, 2014

ForusCare: An integrated teleophthalmology screening system.

ForusCare: An integrated teleophthalmology screening system.

Published on: January 11, 2014

Accuracy of trained rural ophthalmologists versus non-medical image graders in the diagnosis of diabetic retinopathy in rural China.

Accuracy of trained rural ophthalmologists versus non-medical image graders in the diagnosis of diabetic retinopathy in rural China.

Published on: January 2, 2014

Fundus findings in a series of patients with extrapulmonary tuberculosis in Thailand.

Fundus findings in a series of patients with extrapulmonary tuberculosis in Thailand.

Published on: January 2, 2014

Telemedicine screening for retinopathy of prematurity in developing countries using digital retinal images: A feasibility project.

Telemedicine screening for retinopathy of prematurity in developing countries using digital retinal images: A feasibility project.

Published on: June 2, 2008

We develop and manufacture highly advanced medical devices, designed for the effective management of visual health.

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Adult Retinal Imaging

Neonatal Retinal Imaging

Refraction & Myopia Management

Visual Function Testing

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We develop and manufacture highly advanced medical devices, designed for the effective management of visual health.

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Quick Links

Adult Retinal Imaging

Neonatal Retinal Imaging

Refraction & Myopia Management

Visual Function Testing

FH-POISE

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Adult Retinal Imaging

Visual Function Testing

Refraction & Myopia Management

Neonatal Retinal Imaging

FH-POISE

Platforms

Quick Links

Copyright © 2025 Forus Health Pvt Ltd, All Rights Reserved