Measuring the cornea: the latest developments in corneal topography

Swartz, Tracy Schroeder; Martén, Lisa; Wang, Ming

doi:10.1097/icu.0b013e3281ca7121

Cited by 185 publications

(129 citation statements)

References 20 publications

(6 reference statements)

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“…However, in clinical practice, optical pachymetry does not provide reliable data in swollen corneas because of the increased light scattering and absorption. 20 Therefore, in our cases, all measurements were carried out with an ultrasound pachymeter (SP 2000, Tomey GmbH) (Figure 2).…”

Section: Discussionmentioning

confidence: 99%

Collagen crosslinking with ultraviolet-A and hypoosmolar riboflavin solution in thin corneas

Hafezi¹,

Mrochen²,

Iseli³

et al. 2009

Journal of Cataract and Refractive Surgery

314

230

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Corneal collagen crosslinking (CXL) with riboflavin and ultraviolet-A light is a method for treating progressive keratectasia. The currently accepted treatment parameters induce collagen crosslinking in the anterior 250 to 350 mm of corneal stroma. To protect the endothelium, CXL inclusion criteria require a minimum corneal thickness of 400 mm after removal of the epithelium. In advanced keratoconus, however, progressive corneal thinning often leads to a remaining stromal thickness of less than 400 mm. We have therefore modified the current treatment protocol by preoperatively swelling thin corneas to a stromal thickness of at least 400 mm using hypoosmolar riboflavin solution. This treatment protocol was performed in a case series of 20 patients, and no complications were observed. Preoperative swelling of the cornea safely broadens the spectrum of CXL indications to thin corneas that would otherwise not be eligible for treatment.

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Section: Discussionmentioning

confidence: 99%

Collagen crosslinking with ultraviolet-A and hypoosmolar riboflavin solution in thin corneas

Hafezi¹,

Mrochen²,

Iseli³

et al. 2009

Journal of Cataract and Refractive Surgery

314

230

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“…These manifestations can be currently monitored in the clinical practice by means of advanced imaging techniques that are commercially available, such as optical coherence tomographers, systems combining the scanning-slit and Placido disk technologies, and systems based on Scheimpflug photography. 23 These systems also allow the clinician to characterize the pachymetric distribution as well as the volume of the evaluated cornea, which have been shown to be useful for keratoconus diagnosis and characterization. 24 The aim of the current review is to summarize the diagnostic criteria defined for keratoconus with the more advanced topography systems, including analysis of the posterior corneal surface and pachymetric distribution.…”

Section: J Cataract Refract Surg 2012; 38:2167-2183 Q 2012 Ascrs and mentioning

confidence: 99%

Characterization of corneal structure in keratoconus

Piñero¹,

Nieto²,

López-Miguel³

2012

Journal of Cataract and Refractive Surgery

142

113

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“…Nas últimas décadas, observou-se uma verdadeira revolução nos métodos diagnósticos em córnea, destacando-se o advento da topografia de reflexão dos discos de Placido (39,42) , tomografia com reconstrução 3-D (43)(44)(45)(46) , estudo biomecânico da córnea in vivo (47)(48)(49)(50)(51)(52) e a aberrometria ocular (53,59) . A análise da frente de onda (wavefront) ou aberrometria ocular total permite a caracterização das aberrações ópticas do olho de forma mais detalhada e complexa que a tradicionalmente realizada.…”

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