By Roberto Pinelli, Antonio Leccisotti
A workforce of exceptional surgeons from world wide who've made fresh significant advances within the administration and therapy of Keratoconus, have shared their worthy stories during this publication. every one of them is a superb scientific author in addition; the standard which isn't in general discovered. comprises most recent strategies which have been expressly ideated to reinforce or to interchange a weakened corneal stroma. Collagen cross-linking might end up to be very powerful within the administration of Ectasia.
Read or Download Keratoconus Surgery and Cross-linking PDF
Similar ophthalmology books
This new instruction manual deals clinicians professional assistance at the commonest ophthalmic difficulties that current to a physician on name or to a major care provider's workplace. incorporated is every little thing a non-specialist must understand on the way to reveal, establish, deal with, and if acceptable, refer stipulations concerning the attention.
The call for for beauty strategies via male sufferers has elevated in recent times. With this pattern has come the conclusion that male aesthetic wishes are diversified from lady aesthetic wishes. This booklet is the 1st hands-on advisor devoted completely to the cultured remedy of the male sufferer, and gives beauty surgeons with vital details on the best way to receive a usual male search for such sufferers.
Growth in vitreo-retinal surgical procedure is mercurial. given that this sequence is devoted to new advancements the reader is gifted with a motley checklist of issues. The developments defined the following could symbolize regularly authorised growth within the box: New tools, Macular gap surgical procedure, Tumor biopsy. The textual content is well-structured textual content and the e-book bridges the space among fundamental literature and day-by-day perform.
Grasp the attention pathology you want to comprehend for the OKAP examination, residency, and past! Here’s an ideal creation to easy eye pathology which may simply be learn and mastered in the course of an ophthalmic pathology rotation. It presents powerful, effective instruction for OKAP examinations or Board certification in ophthalmology, and also will function a concise scientific reference in perform.
- Vaughan & Asbury's General Ophthalmology (18th Edition)
- Visual Perception: A Clinical Orientation, Fourth Edition
- Glaucoma Surgery
- The Brain's eye: Neurobiological and clinical aspects of oculomotor research
- Ocular Periphery and Disorders
- Cataract Surgery: Maximizing Outcomes Through Research
Additional resources for Keratoconus Surgery and Cross-linking
IntacsTM treatments were first instituted by Colin in 1997 on patients with keratoconus who had a central clear cornea but were contact lens intolerant. The aim of this treatment is to modify the shape of the cornea to improve vision rather than arresting the condition. These forms of treatment may be of particular interest in those patients where more invasive forms of management are more at risk such as in highly atopic individuals and in Down syndrome patients. The treatment consists of inserting semicircular plastic rings within the peripheral corneal stroma in order to shorten the arc length of the anterior cornea and therefore force the anterior cornea to flatten.
In the eye, ascorbic acid absorbs UV radiation (at cornea, lens and vitreous body areas); it is a cofactor of several enzymes, the best known of which are prolyne hydroxylase, enzymes involved in byosinthesis of collagen. In vitreous body, after cataract surgery (absence of glutathione), ascorbic acid (in ascorbate form) absorbs UV not stopped by the lens, resulting in the formation of free radicals, disaggregation of hyaluronic acid and increase in cross-linking of collagen fiber networks. Riboflavin-UVA Treatment A photo sensitizer is a substance which is activated by the absorption of light at a given wavelight and which can induce free radical reactions in its activate form.
The basic mechanism of the photochemical treatment of keratoconus is to use Riboflavin as a photo sensitizer and apply on it UV irradiation at a determined wavelength to induce free radicals reactions and increase in this way the cross-links in the collagen fibers. Riboflavin has a high UV absorption between 360 and 450 nm; due to its additional shielding all structures behind the corneal stroma, including corneal endothelium, anterior chamber, iris, lens and retina, are exposed to a residual UV radiant exposure less than 1 J/cm2 (in accordance with safety guidelines).