7 Contact lens wear is another form of corneal microtrauma associated with keratoconus. 2 – 6 This association may be due to the activation of wound healing processes and signaling pathways secondary to mechanical epithelial trauma and also direct rubbing-related mechanical trauma to the keratocytes and increased hydrostatic pressure in the eye. Several studies have reported a strong association between eye rubbing and the development of keratoconus.
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The future management of keratoconus will most likely incorporate multiple treatment modalities, both simultaneous and sequential, for the prevention and treatment of this disease.Įtiology is unknown and most likely multifactorial. Corneal cross-linking is a relatively new method of stiffening the cornea to halt the progression of the disease. Phakic intraocular lenses such as iris-fixated, angle-supported, posterior chamber implantable collamer and toric lenses are additional valuable options for the correction of refractive error. Intrastromal corneal ring segments can be used to reshape the abnormal cornea to improve the topographic abnormalities and visual acuity. Several newer, more invasive, treatments are currently available, especially for contact lens-intolerant patients. The traditional conservative management of keratoconus begins with spectacle correction and contact lenses. Computer- assisted corneal topography devices are valuable diagnostic tools for the diagnosis of subclinical keratoconus and for tracking the progression of the disease. It is a relatively common disorder of unknown etiology that can involve each layer of the cornea and often leads to high myopia and astigmatism. It will include questions and answers and explanations of the answers, The NCLE Test Content Areas and Test Specifications, and Strategies for Test Taking.Keratoconus is a non-inflammatory, progressive thinning process of the cornea. This publication is designed to have a similar format of study as the Ophthalmic Dispensing Review book. Over the years, there was a separation of study materials, and contact lens questions were dropped from the ODR. The original Ophthalmic Dispensing Review (ODR) that was originally published by the American Board of Opticianry and later placed with the National Academy of Opticianry included questions and answers on contact lenses. It is a great self-assessment tool to define areas where more study is needed and to help build confidence right before the exam. Those preparing for the NCLE Certification Exam will also benefit from the Strategies for Test Taking section of the book. The NCLE Test Content Areas and Test Specifications are also included in this text.
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The questions and answers are arranged in the same domains as found on the National Contact Lens Examiner’s Certification Exam and as referenced by the NCLE Test Content Areas and Test Specifications.
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The new Contact Lens Review Bookfeatures hundreds of multiple choice questions-and-answers with a brief explanation for the correct answers. This is intended as a review only and does not guarantee passage of the National Contact Lens Examination. Included in the course are:ĭrugs and diseases/viruses affecting contact lens wear,īy Diane F.
#REVIEW OF CORNEA AND CONTACT LENS BOOK VERIFICATION#
Included in this course will be information on anatomy and physiology of the eye, ocular pathology, drugs and disease, lifestyle factors, corneal defects, principles of optics, patient records, confidentiality, patient communication, information gathering, contact lens instrumentation, selection of contact lenses, design of contact lenses, contact lens materials and designs, fluorescein patterns, patient instructions, contact lens solutions, specialty contact lenses, verification of contact lenses, contact lens modification, patient follow-up, and troubleshooting. This course will give the participant information that will better prepare them to sit for the NCLE examination. It is written by Diane Drake, LDO, ABOM, FCLSA Beginning Your Life as a Contact Lens Technicianīeginning Your Life As A Contact Lens Technician is an 8 hour, technical NCLE Review Course for those with a basic knowledge of contact lenses and who are preparing to take the NCLE certification exam.