+ +

Biomechanics

Gatinel D. The mystery of collagen cross linking when it comes to in-vivo biomechanical measurements. J Refract Surg. 2014; 30 (11) - 727

This letter to the editor of the Journal of Refractive Surgery is an article recently published on the results of the Cross Linking in patients of Keratoconus (1). As in all the previous studies, both instruments intended to measure corneal Biomechanics (Ocular Response Analyzer: ORA) and the CorVis did not [...]

Learn more

D Gatinel. Effectiveness of corneal collagen crosslinking vivo for corneal stiffening. J Cataract Refract Surg 2014 40, 111943-1944

This article is about a recent publication on the comparison between two techniques of cross linking (XCL): conventional and accelerated (ultraviolet energy is issued with a higher power on shorter than in the classic crosslinking).  The authors were able to highlight significant changes of corneal rigidity or with [...]

Learn more

Is the cross linking of the corneal collagen really effective for Keratoconus?

  The cross-linking (CXL) of corneal collagen is a surgical technique proposed in recent years to solidify the cornea of evolutionary Keratoconus patients. It is performed under local anesthesia, sequentially (the two eyes don't are not operated on the same day). The first objective of this procedure is to cause an increase in [...]

Learn more

Crosslinking (CXL)

Often referred to as CXL, the technique of crosslinking (corneal collagen cross-linking) is proposed to the patient to increase the stiffness of the cornea in case of keratoconus Evolutionary. Despite its growth in ophthalmology in recent years, no significant increase in the stiffness of the cornea could be highlighted in [...]

Learn more

Grise Dulac A, Saad A, Abitbol O, Febbraro JL, Azan E, Moulin-Thyrode C, Ganeshan D. Assessment of corneal biomechanical properties in normal voltage glaucoma and comparison with open-angle glaucoma, ocular hypertension, and normal eyes. Journal of Glaucoma, Sept 2011

This article concerns the exploration of the biomechanical properties of corneas in the eyes of a group of patients with normal-pressure glaucoma. Download: Assessment of corneal biomechanical properties in normal tension glaucoma.

Learn more

Measurement of the corneal hysteresis

While many instruments allow to study geometric properties and optical (corneal topography) or histo-morphological (confocal microscopy study), the estimate of the biomechanical properties of the cornea was long confined to research until the introduction of the Ocular Response Analyzer® (usually called "ORA" instrument, and designed by the company Reichert, Buffalo, NY). This instrument provides for the [...]

Learn more

Corneal Biomechanics

Biomechanical properties clinical evaluation of the corneal with the Ocular Response Analyzer (ORA). Interest and principles of mesure.de corneal hysteresis. While many instruments allow to study geometric properties and optical (corneal topography) or histo-morphological (confocal microscopy study), the estimate of the biomechanical properties of the cornea was long confined to research up to the introduction [...]

Learn more

Biomechanics of the cornea

The study of the biomechanical resistance of the cornea before refractive surgery is useful to check the possibility of performing a technique of correction of the vision on the cornea. In fact, refractive corneal surgery (LASIK, PKR) affects the biomechanical properties of the cornea. The assessment of the physical characteristics of the cornea thus authorizes operative safety [...]

Learn more

Pre-surgery

Which preoperative assessment in refractive surgery?   The preoperative consultation is a critical time in the operative approach in refractive surgery. The first consultation aims to clinical data collection, and the provision of information to the patient. It allows to choose the best surgical technique, or to recuse an operative indication (even though most [...])

Learn more