![]() This book is organized for versatility to allow the student “in a rush” to go quickly through the scenarios and check the corresponding answers or to consider the thought-provoking explanations. Most importantly, the explanations for the cases emphasize the mechanisms and structure–function principles, rather than merely rote questions and answers. Thus, this collection of patient cases is designed to simulate the clinical approach and stress the clinical relevance to the anatomical sciences. Even with accurate knowledge of the basic science, the application of that knowledge is not always easy. Clearly, there is no replacement for education at the bench. To gain these skills, the student learns best with good anatomical models or a well-dissected cadaver, at the laboratory bench, guided and instructed by experienced teachers, and inspired toward self-directed, diligent reading. It is even more difficult to draw on that knowledge, relate it to a clinical setting, and apply it to the context of the individual patient. doi: 10.1097/OPX.Mastering the diverse knowledge within a field such as anatomy is a formidable task. Hypoxic Corneal Changes Following Eight Hours of Scleral Contact Lens Wear. Vincent SJ, Alonso-Caneiro D, Collins MJ, et al. ![]() Scleral Lens–Induced Corneal Edema after Penetrating Keratoplasty. ![]() Reducing the amount of time patients wear scleral lens and using fenestrated scleral lenses may also reduce corneal edema, they said. “This may be achieved by increasing the scleral lens material’s oxygen permeability (however, minimal benefits are seen in healthy eyes increasing beyond 100 Dk), minimizing lens thickness (although this is influenced by the required back vertex power and can increase lens flexure), and reducing the thickness of the post-lens fluid reservoir.” “Practitioners should aim to minimize any potential hypoxic and mechanical corneal stress when fitting post–penetrating keratoplasty eyes with scleral lenses,” the researchers said. They also noted that measuring the endothelial cell density would have provided more detail regarding the corneal response after scleral lens wear. Limitations of the study included a small sample size, possible landing zone misalignment and other uncontrolled differences between the two groups, the researchers said. 1 The lenses had an initial central clearance of 353 μm (95% CI, 287 to 419 μm). The healthy control group wore nonfenestrated lenses made of hexafocon (oxygen permeability, 100 Dk center thickness, 300 μm diameter, 16.5 mm) for an average of 8.5 hours (95% CI, 8.4 to 8.6 hours range, 8.3 to 8.8 hours). (Photo by Leon Neal/Getty Images) Researchers compared the central corneal response to short-term scleral lens wear in subjects after penetrating keratoplasty with those who did not undergo the procedure. As well as working in local hospitals, the charity also has a self-sufficient surgical unit on the Orbis Flying Eye Hospital, a converted McDonald-Douglas MD10 aircraft. Founded in 1982 by ophthalmologist David Paton, Orbis trains eyecare teams across Africa, Asia and Latin America to improve the standard of eyecare in the region. After suffering with the condition since the age of three, Diana was chosen for a penetrating keratoplasty procedure (cornea transplant) during a programme run by Orbis, the ophthalmic training organisation. Diana’s mother Rosa has the same syndrome and has struggled with sight loss since the age of nine. Reis-Buckler corneal dystrophy is a rare genetic condition which causes the Bowman’s layer of the cornea to disintegrate. ![]() TRUJILLO, PERU – APRIL 20: A surgeon works on the eye of Reis-Buckler syndrome patient Diana, aged 17, during surgery onboard the Orbis Flying Eye Hospital on Apin Trujillo, Peru. ![]()
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