You searched for "epithelium"

285 results found

Corneal tattooing as treatment for bullous keratopathy

This retrospective study looked at differences in epithelial smoothing in patients with bullous keratopathy (BK) undergoing either corneal tattooing or anterior stromal puncture (ASP). Both procedures were carried out for symptomatic relief in eyes with poor visual potential. Chinese ink...

Biopsy of nasolacrimal duct using sheath guided dacryoendoscopy

In this study the author’s biopsied six eyes of five individuals with recurrent nasolacrimal duct obstruction following a prior dacryoendoscopic probing. All procedures were performed under local anaesthetic, the obstruction or lesion was directly visualised with dacryoendoscope and biopsy was...

Microbiology, risk factors and outcomes of microbial keratitis in Sydney, Australia

The authors present a retrospective case series including all patients with microbial keratitis and ocular surface diseases (OSD), including dry eye, blepharitis, Stevens-Johnson syndrome and / or ocular cicatricial pemphigoid, over a five-year period between 2012 and 2016. A total...

Therapeutic ocular surface medium for persistent corneal epithelial defect

Corneal ulcers and persistent epithelial defects (PEDs) are caused by a variety of different insults to the cornea, which includes limbal epithelial stem cell failure. PED may be resistant to healing with standard therapy such as frequent ointments and /...

Understanding amniotic membrane grafts

Safa Elhassan gives a brief review of amniotic membrane grafts and their application in theatre and clinic-based settings. Amniotic membrane (AM) transplant has been an established adjuvant treatment for many corneal, conjunctival and scleral disorders in ophthalmic clinical practice with...

RPE tears after intravitreal Lucentis

The current hypothesis regarding retinal pigment epithelium (RPE) tears is the contraction and fibrosis in choroidal neovascularisation (CNV) tissue after anti-VEGF therapy can induce rips in the overlying RPE. This South Korean study aimed to identify the association between RPE...

The embryology of the eye

Nobody claims to like embryology. At least nobody I know. It has been a neglected part of the curriculum since time immemorial and a vicious cycle occurs in which those with an incomplete understanding fail to appreciate the inherent beauty...

OCT in peripheral corneal thinning

This small retrospective study used high resolution optical coherence tomography (OCT) Heidelberg Spectralis to identify features which could determine the underlying aetiology of peripheral corneal thinning. Ten patients were included; five with diagnoses of degenerative peripheral thinning; Terrien’s marginal degeneration...

Transfected RPE cells inhibit AMD in rats

Age-related macular degeneration (AMD) is a leading cause of blindness in the elderly. Wet AMD is characterised by choroidal neovascularisation, new vessels into the retina, leading to leakage and tissue damage. Many proangiogenic factors particularly vascular endothelial growth factor (VEGF)...

Review of pathogenesis of Acanthamoeba keratitis

In this review, the author summarised the current microbiomic and immunological evidence related to the pathogenesis of Acanthamoeba keratitis (AK). AK has been described for almost 50 years, but the exact biology of the disease remains perplexing. Acanthamoeba spp. are...

Corneal dystrophies simplified

Based on biomicroscopic and histopathologic features, corneal dystrophies can be broadly classified into epithelial, Bowman’s layer / anterior stromal, stromal, and endothelial dystrophies. Corneal dystrophies are a group of inherited, bilateral, gradually progressing, non- inflammatory conditions caused by accumulation of...

Corneal molecular and cellular biology for refractive surgeon

This is an interesting literature review that looks into the recent advances concerning the corneal molecular and cellular processes that are involved in the wound healing response after excimer laser surface ablation and LASIK surgery. It talks about the complex...