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Research

Research Overview
Dr Carl Sheridan’s research addresses cellular mechanisms that drive glaucoma and ocular wound healing. His work focuses on trabecular meshwork dysfunction in primary open-angle glaucoma, developing advanced 3D in vitro models and organ culture systems to study disease progression. He explores stem cell-based therapies and biomaterials to regenerate the outflow pathway and restore intraocular pressure control.
Carl also investigates retinal wound healing in conditions such as age-related macular degeneration (AMD) and proliferative vitreoretinopathy (PVR). This research is underpinned by retinal pigment epithelium biology and aims to inform regenerative medicine strategies for vision restoration.
His studies combine cell culture, imaging, and omics technologies, supported by collaborations in biomedicine and bioengineering. The goal is to translate laboratory findings into therapies that prevent sight loss.

Research Interests
1. Glaucoma and Trabecular Meshwork Biology
Carl studies the cellular and molecular mechanisms underlying trabecular meshwork dysfunction in primary open-angle glaucoma. His team develops 3D in vitro models and organ culture systems to replicate disease conditions. Research includes stem cell-based therapies and biomaterial scaffolds to regenerate trabecular meshwork and restore aqueous outflow.
2. Retinal Wound Healing and RPE Cell Biology
This area focuses on wound healing processes in retinal diseases such as AMD and PVR. Carl investigates how RPE cells respond to injury and degeneration, aiming to develop cell-based and tissue-engineered solutions for retinal repair.
3. Tissue Engineering and Regenerative Medicine
Carl integrates biomaterials, stem cells, and tissue engineering to design transplantable cell layers and ocular models. These approaches support regenerative strategies for glaucoma and retinal disorders, bridging laboratory research and clinical application.

PhD Recruitment areas
glaucoma research, trabecular meshwork, primary open-angle glaucoma, retinal pigment epithelium, ocular wound healing, AMD, PVR, stem cell therapy, induced pluripotent stem cells (iPSCs), tissue engineering, regenerative medicine, biomaterials, ocular drug delivery, vision science, ocular cell biology, ophthalmology, bioengineering, biomedicine, translational eye research, PhD in glaucoma, PhD in regenerative medicine, PhD in tissue engineering, PhD in bioengineering, PhD in biomedicine, postgraduate research in ocular disease.

Subretinal PVR membrane (white strands) seen beneath the neural retina

Retinal Pathologies and Treatments

A multidiscipline approach to understand the cellular mechanisms of retinal wound healing which occurs due to a variety of blinding retinal disorders (e.g. Age-related Macular Degeneration, Proliferative Diabetic Retinopathy). A number of projects from bench to beside are continually evolving to enhance our knowledge to combat these blinding conditions.

Progenitors of Endothelial or Trabeculum (PET) cells. Adapted from Hogan, Alvarado & Weddell, 1971

Cornea and Trabecular Meshwork

Both the corneal endothelium (CE) and trabecular meshwork (TM) cells are special cell types in the eye that do not self-replace when lost in ageing or diseases, such as Fuch’s endothelial dystrophy and primary open angle glaucoma (POAG) (Yu et al., 2015). Understanding the disease mechanisms involved in both cell loss and potential cell replacement approaches are key areas of study within our group.

Research grants

201381564 BILIR

TURKISH EMBASSY (LONDON)

October 2018 - September 2021

Optimisation of PET cell infiltration of trabecular meshwork

INTERNATIONAL GLAUCOMA ASSOCIATION (UK)

July 2016 - February 2019

Investigating the role of microRNAs in glaucoma pathogenesis.

FIGHT FOR SIGHT (UK)

December 2014 - August 2016

Histopathological evaluation of a new therapy for Diabetic retinopathy

DIABETES UK (UK)

August 2007 - January 2008

Research Eye Bank Project

FOUNDATION FOR THE PREVENTION OF BLINDNESS (UK)

September 2012 - July 2017

Research Fellow.

FOUNDATION FOR THE PREVENTION OF BLINDNESS (UK)

October 1998 - September 2002

Development of a New Strategy to Treat Age-Related Macular Degeneration.

FOUNDATION FOR THE PREVENTION OF BLINDNESS (UK)

September 2008 - August 2009

Identification and propagation of stem cell-rich sites of the conjuctiva.

THE GUIDE DOGS FOR THE BLIND ASSOCIATION (UK)

August 2007 - August 2012

ICE of human ocular surface (corneal and conjunctival) stem cells

ROYAL LIVERPOOL AND BROADGREEN UNIVERSITY HOSPITALS NHS TRUST CHARITABLE FUNDS (UK)

October 2014 - September 2015

Dunhill Research Fellowship: Cell transplantation and the treatment of age-related macular degeneration.

FOUNDATION FOR THE PREVENTION OF BLINDNESS (UK)

August 2001 - January 2005

Micro-Plasma Technology for Controlling Cellular Interactions on Medical Implants

ENGINEERING & PHYSICAL SCIENCES RESEARCH COUNCIL

September 2009 - May 2013

Stem cells for the trabecular meshwork

INTERNATIONAL GLAUCOMA ASSOCIATION (UK)

April 2012 - December 2018

"Smart" targeting of anti-scarring agents in an in vitro model of retinal wound healing.

BRITISH COUNCIL FOR PREV OF BLINDNESS (UK)

December 2003 - November 2009

Endothelial cell and retinal pigment epithelial cell (RPE) interaction in choroidal neovascularization (CNV): action and reaction.

BRITISH COUNCIL FOR PREV OF BLINDNESS (UK)

June 2001 - September 2003

Foundation Research Assistant

FOUNDATION FOR THE PREVENTION OF BLINDNESS (UK)

January 2007 - January 2009

Iris Pigment Epithelial Cell Transplantation and Age Related Macular Degeneration.

FIGHT FOR SIGHT (UK)

October 2002 - September 2005

IPE cell transplantation

THE UNIVERSITY OF HONG KONG (CHINA)🚩

June 2009 - May 2011

Investigation of a new cell treatment for Age-Related Macular Degeneration.

HELP THE AGED

October 2005 - December 2007

Surgical instruments and procedure for cell transplantation in AMD

MACULAR DISEASE SOCIETY (UK)

December 2011 - May 2013

Progenitor cell treatments in Age Related Macular Degeneration (AMD).

VIVENSA FOUNDATION (UK)

January 2006 - December 2009

Transplantation of IPE beneath the neuroretina in ARMD.

ROYAL LIVERPOOL AND BROADGREEN UNIVERSITY HOSPITALS NHS TRUST (UK)

September 2003 - August 2006