You searched for "Corneal"

2290 results found

Resurfacing the ocular surface

The ocular surface (OS) is an anatomical and functional unit made of the tear film, the conjunctival, limbal and corneal epithelium, the lacrimal, mucous and meibomian glands and the lids and blink reflex. The tear film is composed of a...

LASIK for myopia progression

The authors hypothesise that corneal reshaping with refractive surgery could have an effect on myopic progression similar to that of orthokeratology because it results in changes to the central cornea and not to the peripheral cornea. This was a retrospective...

Acute dellen formation post trauma

Corneal dellen are saucer-like thinnings, usually of the peripheral cornea [1]. Dellen formation is thought to be related to localised tear film instability [2], specifically the absence of the mucin component of the tear film. Without the mucin layer, dry...

Bardet Biedl refractive error

This is a retrospective cross-sectional study of 45 patients with genetically diagnosed Bardet Biedl syndrome. Patients with biallelic defects in any gene known to cause Bardet Biedl syndrome were eligible for inclusion. Patients underwent cycloplegic refraction and keratometry. The mean...

Quiz Aug/Sep 2025

History A 78-year-old female presented with bilateral, painless, progressive blurring of vision over five years, photophobia and increasing glare. Her past medical history included a known diagnosis of monoclonal gammopathy of undetermined significance (MGUS). On examination, vision in the left...

Presumed DALK stromal graft rejection following Covid-19 infection

Case report A 45-year-old healthy male patient with a past ocular history of keratoconus and right deep-anterior lamellar keratoplasty (DALK) graft performed 10 months prior, presented to our eye casualty clinic with a two-day history of right photophobia and epiphora....

Dramatic myopic shift due to epithelial basement membrane dystrophy

Epithelial basement membrane dystrophy (EBMD), also known as map-dot-fingerprint dystrophy, is a common anterior corneal disorder affecting approximately 2% of the population [1]. It is characterised by the abnormal maintenance of the basement membrane, resulting in protrusions into the epithelium....

Combined PRK and CXL in keratoconus

This study aimed to investigate the results after photorefractive keratectomy (PRK) followed immediately by standard 30-minute corneal cross-linking (CXL) for keratoconus. This retrospective study included 26 eyes of 16 patients with keratoconus. Uncorrected distance visual acuity (UDVA), corrected distance visual...

Anaesthetic drops abuse

A 67-year-old retired female nurse presented with persistent, bilateral, non-healing (>6 weeks) corneal ulcers and stromal ring infiltrates (Figures 1 and 2). The epithelial defects were the result of chemical burns caused by her contact lenses which had been stored...

Penetrating keratoplasties in infants

This retrospective review looked at endothelial cell counts (ECC) following penetrating keratoplasties (PKP) performed in infants within the first year of their life. One hundred eyes of 71 patients had their first PKP during the study period (1998-2013). In 30%...

In vivo confocal microscopy, principles and use in keratitis Part 1: Principles

In 1968 Maurice introduced the concept of high powered specular microscopy, it was in that very year that the first scanning confocal microscope was proposed. Marvin Minsky developed the first confocal microscope in 1955 named the ‘double focusing scanning microscope’....

Factors influencing the outcome of GT and TBT in PCG

This is a retrospective study between 2013 to 2016 of 452 eyes of patients </=12 years with primary congenital glaucoma (PCG), who underwent either goniotomy (GT) (median age: six months, 120 eyes) or trabeculotomy (TBT) (median age: 5.2 months, 332...