EyeWorld is the official news magazine of the American Society of Cataract & Refractive Surgery.
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August 2012 EW NEWS & OPINION 11 CLAO to join ASCRS in new administrative agreement by Cindy Sebrell ASCRS Director of Communications In the journal … August 2012 Technique: Pseudo anterior capsule barrier after posterior capsule rupture Soon-Phaik Chee, F.R.C.Ophth. This paper highlights a technique for managing a posterior capture rup- ture with the aid of an IOL. With the technique, if a rupture occurs the IOL is used as a barrier. To prevent vitreous prolapse, the first step is to inject a dispersive ophthalmic viscosurgical device (OVD) into the anterior chamber, where remaining nucleus is cordoned off. An attempt is then made to transform the posterior capsule tear into a continuous curvilinear capsulorhexis. While the large fragments remain separated by the OVD in the anterior chamber, a dissociated anterior vitrectomy is performed as needed. Optic capture of the lens, which is placed in either the bag or sulcus, is done through the anterior capsulorhexis. This IOL serves as a barrier cordoning off the vitreous cavity while the nucleus is fragmented using phacoemulsification done with reduced parameters. A vitreous cutter is used under the optic to remove vitreous and residual nuclear fragments from the area. The optic is then recaptured and the instruments removed. Impact of corneal aberrations on IOL power calculations Carmen Canovas, M.Sc., Salome Abenza, M.D., Encarna Alcon, M.Sc., Eloy A. Villegas, Ph.D., Jose M. Marin, M.D., Pablo Artal, Ph.D. In this case series, investigators set out to find how IOL calculations in normal eyes as well as those that have undergone previous LASIK are impacted by corneal aberrations. Calculations were performed with in- clusion of corneal aberrations and without using ray tracing and tradi- tional power calculation techniques. Post-cataract optimum IOL power was the standard to which all predictions were compared. Investigators found that for those with normal eyes that had never undergone previ- ous refractive surgery, there was a similar mean for residual error and variance using either ray-tracing or traditional approaches. For these patients, inclusion of corneal aberrations did not make a difference. However, in cases where the eye had undergone previous surgery, when ray tracing was used, inclusion of aberrations did make a difference, boosting the accuracy. This could be a difference of up to 3 D of IOL power depending upon the amount of spherical aberration. Investiga- tors concluded that use of ray tracing paired with corneal aberrations resulted in the most accurate power outcomes for post-LASIK patients. Because of elevated corneal spherical aberrations in these post-LASIK cases, incorporation of corneal aberrations is crucial. CXL with LASIK Ugur Celik, M.D., Nese Alagöz, M.D., Yusuf Yildirim, M.D., Alper Agca, M.D., John Marshall, M.D., Ahmet Demirok, M.D., Omer Faruk Yilmaz, M.D. This prospective case series out of Istanbul involving eight eyes focused on outcomes with accelerated corneal collagen crosslinking in conjunc- tion with LASIK. Patients underwent traditional myopic or myopic astig- matic LASIK in one eye and LASIK paired with accelerated crosslinking in the other. They determined that at the 12-month mark, those that underwent the crosslinking in conjunction with LASIK were on par or had uncorrected distance acuity that surpassed those that received LASIK alone. Ultimately no eye lost more than one line of corrected distance visual acuity. Those that underwent LASIK crosslinking proce- dure showed no additional endothelial cell loss compared to those that received LASIK alone. Investigators concluded that corneal crosslinking appears promising for possibly staving off ectasia after LASIK and should be studied further. CLAO will join other ophthalmic associations now managed under the ASCRS umbrella T he Contact Lens Associa- tion of Ophthalmologists (CLAO), a non-profit organization with about 300 members dedicated to providing ophthalmologists, optometrists, and other eyecare professionals with leading-edge information in contact lens and re- lated vision science, will be managed under the administrative umbrella of ASCRS effective August 15. The move comes as the CLAO Board of Directors initiates an effort to grow membership, increase its educational offering, and launch a new vision for the organization's fu- ture. ASCRS has a successful history of providing synergistic manage- ment services for ophthalmic societies. Other societies and organi- zations under the ASCRS umbrella include the ASCRS Foundation, the American Society of Ophthalmic Administrators, and the Cornea Society. Joyce D'Andrea, who has served as ASCRS clinical coordinator since 2005, will assume responsibili- ties as the CLAO staff liaison. "This is an exciting opportunity for CLAO to grow and emerge as a stronger, more vibrant community of ophthalmological professionals dedicated to the science of contact lenses," said CLAO president Warren R. "Chip" Fagadau, M.D. "CLAO has had long-standing and productive relationships with oph- thalmology's major organizations. We look forward to strengthening those bonds in the years to come as ophthalmologists increasingly recog- nize the clinical significance of new contact lens technology in the con- tinuum of vision care. Furthermore, we'll look to broaden our already-es- tablished interaction with a number of international contact lens soci- eties. All of these initiatives, we feel, can be advanced through the sup- port of ASCRS." CLAO was founded in 1963, and its first scientific program was held the following year during the annual meeting of the American Academy of Ophthalmology and Otolaryngol- ogy. Since then CLAO has grown to become an important medical sub- specialty association focused on edu- cation and professional support for the office-based ophthalmologist, optometrist, and other contact lens professionals. In addition to its peer- reviewed scientific journal, Eye and Contact Lens: Science and Clinical Practice, CLAO offers educational programming, professional develop- ment, and an annual symposium and congress. Under the arrange- ment, the CLAO Education and Re- search Foundation, which supports education and the advancement of research and technologies related to contact lenses, anterior segment vision care services, and public eye healthcare, will also be managed by ASCRS. CLAO's annual symposium and congress and its publications will remain independent, and the organization will continue to func- tion under its current bylaws and leadership board, with the sole addi- tion of an ASCRS representative. "I'd like to thank ASCRS immediate past president Dr. Edward Holland and CLAO president Dr. Fagadau for their determined and collaborative effort to forge this new relationship," said ASCRS president David F. Chang, M.D. "I believe that this management support and collaboration will benefit CLAO members and their patients, and we're excited to help the organiza- tion grow and meet its educational mission for many years to come." Contact information Sebrell: csebrell@ascrs.org 11