Corneal hydrops secondary to undiagnosed keratoconus

A 21-year old female presented to the emergency department with an abnormal appearing of her left eye after trivial trauma the previous day. A protruding, opaque appearing area was noted on the left cornea. The patient underwent visual acuity testing, fluorescein staining with slit lamp examination revealing a conical corneal protrusion with corneal stromal edema suggestive of corneal hydrops. Corneal hydrops is a rare complication of keratoconus and various corneal ectasias where aqueous humor can leak into the corneal stroma causing edema and protruding pockets of fluid.
Source: The American Journal of Emergency Medicine - Category: Emergency Medicine Authors: Source Type: research

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In cases of uncorrected regular and irregular astigmatism, the formation of an aqueous ‘lens’ in the post-lens tear film of rigid contact lenses neutralises 90 % of corneal astigmatism [1,2]. CoL bear on the cornea only, SL vault the cornea bearing entirely on the sclera, preventing detrimental mechanical interaction with the cornea [3]. CoL are considered the gold standard in the management of keratoconus [4]. Despite recent resurgence, SL use is limited to relatively few practitioners [3] managing advanced disease or as a problem solver for failed alternative contact lenses [5,6].
Source: Contact Lens and Anterior Eye - Category: Opthalmology Authors: Source Type: research
DiscussionCorneal assessment techniques, with the ability to characterise both the anterior and posterior corneal surfaces, are invaluable in the diagnosis of pre-clinical KC. Reflection based and elevation based corneal imaging systems should be used in conjunction with other assessments such as higher order aberration measuring systems to improve sensitivity and reliability in the diagnosis of pre-clinical KC. Ultra high resolution ultrasound can detect pre-clinical KC. The ability to asses both the epithelium and endothelium makes anterior surface optical coherence tomography a superior technique for pre-clinical KC dia...
Source: Journal of Optometry - Category: Opthalmology Source Type: research
Purpose: To investigate the correlations between the biomechanical indices determined in Scheimpflug-based corneal biomechanical assessments and the severity of keratoconus (KC) based on corneal tomographic assessments in patients with different stages of KC. Methods: Fifty-three patients who presented with clinical KC in 1 eye and KC suspect in the fellow eye were included. Corneal tomographic and biomechanical assessments were performed using the Pentacam HR and Corvis ST (Oculus Optikgeräte GmbH, Wetzlar, Germany). Correlations between the tomographic indices and biomechanical indices were assessed, including ...
Source: Cornea - Category: Opthalmology Tags: Clinical Science Source Type: research
Conclusions: Combined intracameral gas injection and approximation sutures are probably effective and safe for the treatment of acute CH. This treatment results in rapid recovery with very rare complications.
Source: Cornea - Category: Opthalmology Tags: Techniques Source Type: research
Conclusions: The results of this study, as the most comprehensive meta-analysis of keratoconus prevalence and risk factors, showed that keratoconus had a low prevalence in the world and eye rubbing, family history of keratoconus, allergy, asthma, and eczema were the most important risk factors for keratoconus according to the available evidence.
Source: Cornea - Category: Opthalmology Tags: Review Source Type: research
No abstract available
Source: Cornea - Category: Opthalmology Tags: Letters to the Editor Source Type: research
No abstract available
Source: Cornea - Category: Opthalmology Tags: Letters to the Editor Source Type: research
Purpose: To evaluate the clinical outcomes of a new model of intrastromal corneal ring segments (ICRSs) (Keraring AS) in patients with keratoconus and quantify subsequent changes in refraction and corneal topography. Methods: This nonrandomized, single-center, retrospective observational study explores the effect of progressive thickness ICRS implantation in patients with keratoconus with a 3-month follow-up. After creating an intrastromal tunnel using a femtosecond laser, 1 or 2 ICRSs of progressive thicknesses (150/250 μm or 200/300 μm) and 160-degree arc length were implanted. Changes in uncorrected distance ...
Source: Cornea - Category: Opthalmology Tags: Clinical Science Source Type: research
Purpose: To compare the clinical results of accelerated corneal collagen cross-linking (ACXL) to standard corneal collagen cross-linking (SCXL) in progressive keratoconus by summarizing randomized controlled trials using a meta-analysis. Methods: Trials meeting the selection criteria were quality appraised, and data were extracted by 2 independent authors. A comprehensive search was performed using the Cochrane methodology to evaluate the clinical outcomes of ACXL and SCXL for treating progressive keratoconus. Estimates were evaluated by weighted mean difference (WMD) and 95% confidence interval (CI) for absolute chan...
Source: Cornea - Category: Opthalmology Tags: Clinical Science Source Type: research
Conclusions: The study showed no statistical differences between younger and older patients. These findings support the indication of CXL treatment in pediatric patients for early stabilization of the disease and better progress regarding BCVA and keratometry parameters.
Source: Cornea - Category: Opthalmology Tags: Clinical Science Source Type: research
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