In modern cataract surgery, the precision by which the target refraction is achieved still remains unsatisfactory in many cases. Potential reasons include interindividual differences in wound healing, a postoperative shift of the anatomical position of the lens or previous refractive laser surgery. A system that allows for postoperative adjustment of target refraction would be highly beneficial. The light-adjustable lens LAL, Calhoun Vision, Inc., Pasadena, CA potentially represents such a system where refractive power is adjusted postoperatively using photosensitive silicone molecules and irradiation with ultraviolet UV light. Based on the principle of photochemistry and diffusion and using a well-defined spatial and temporal UV irradiance profile, the LAL is modified to add or subtra... http://wfeeds.igolenses.com/rss/phrase/eye-laser-surgery.xml en http://www.medworm.com/index.php?rid=3409932&cid=c_13_30_f&fid=36642&url=http%3A%2F%2Fwww.ophsource.org%2Fperiodicals%2Fophtha%2Farticle%2FPIIS0161642009014444%2Fabstract%3Frss%3Dyes In modern cataract surgery, the precision by which the target refraction is achieved still remains unsatisfactory in many cases. Potential reasons include interindividual differences in wound healing, a postoperative shift of the anatomical position of the lens or previous refractive laser surgery. A system that allows for postoperative adjustment of target refraction would be highly beneficial. The light-adjustable lens LAL, Calhoun Vision, Inc., Pasadena, CA potentially represents such a system where Tue, 23 Nov 2010 18:10:18 +0000 http://www.medworm.com/index.php?rid=3806939&cid=c_13_30_f&fid=33405&url=http%3A%2F%2Fwww.springerlink.com%2Fcontent%2Fu88g712221287707%2F ConclusionnbspnbspCorneal spherical aberration and Z increased with corresponding increases in the internal spherical aberration and Z following LASIK. This may be an active compensatory mechanism of the internal optics to change, in order to reduce the effect of induced corneal HOA. Content Type Journal ArticleCategory Refractive SurgeryDOI .s---xAuthorsColm McAlinden, University of Ulster School of Biomedical Sciences Cromore Road Coleraine BT SA UKJo Tue, 23 Nov 2010 18:10:18 +0000 http://www.medworm.com/index.php?rid=3386475&cid=c_13_30_f&fid=32292&url=http%3A%2F%2Fdx.doi.org%2F10.1111%252Fj.1442-9071.2010.02198.x Photorefractive keratectomy, laser epithelial keratomileusis LASEK and Epi-LASIK are all variants of a similar type refractive surgery involving laser on the surface of the cornea and differ mainly in management of the epithelium. Although laser in situ keratomileusis LASIK is currently the most popular form of refractive surgery, LASEK is the procedure of choice in some patients. We highlight potential complications of LASEK and how these may be managed. Following laser refractive surgery, corneal th Tue, 23 Nov 2010 18:10:18 +0000 http://www.medworm.com/index.php?rid=3788828&cid=c_13_30_f&fid=38496&url=http%3A%2F%2Fwww.jcrsjournal.org%2Farticle%2FPIIS0886335010008175%2Fabstract%3Frss%3Dyes In the consultation section of the January issue, the refractive surgical problem involved a patient who was operated on for a pterygium but the surgeon did not know that laser in situ keratomileusis LASIK had been performed years previously. The LASIK flap was excised during surgery, and irregular astigmatism and corneal scarring developed. The patients visual acuity deteriorated to . Source Journal of Cataract and Refractive Surgery Tue, 23 Nov 2010 18:10:18 +0000 http://www.medworm.com/index.php?rid=3434302&cid=c_13_30_f&fid=38496&url=http%3A%2F%2Fwww.jcrsjournal.org%2Farticle%2FPIIS0886335010000891%2Fabstract%3Frss%3Dyes Conclusion There was a greater decrease in IOP measurement after LASIK by rebound tonometry, showing this method was more affected by surgery.Financial Disclosure No author has a financial or proprietary interest in any material or method mentioned. Source Journal of Cataract and Refractive Surgery Tue, 23 Nov 2010 18:10:18 +0000 http://www.medworm.com/index.php?rid=3439191&cid=c_13_26_f&fid=39048&url=http%3A%2F%2Frss.feedsportal.com%2Fc%2F851%2Ff%2F10852%2Fs%2F9d21167%2Fl%2F0L0Sirishtimes0N0Cnewspaper0Chealth0C20A10A0C0A40A60C12242677415980Bhtml%2Fstory01.htm Before opting for laser eye surgery, you need to make sure you know what the procedure will entail and how it will work for you, writes FIONA REDDAN Source The Irish Times - Health Tue, 23 Nov 2010 18:10:18 +0000 http://www.medworm.com/index.php?rid=3528576&cid=c_13_26_f&fid=23292&url=http%3A%2F%2Ffeedproxy.google.com%2F%7Er%2Fmnt%2Fhealthnews%2F%7E3%2FgqnQ6_QDwjU%2F3C5W Dr. Angela Nahl of La Jolla LASIK Institute recently became the first San Diego LASIK surgeon to perform refractive surgery on a patient using the new Ziemer Z-LASIK technology. The patient, who happens to be a physician, reported only minor discomfort and tested with vision following the ten minute procedure. During LASIK, the surgeon cuts a flap in the patients cornea, performs laser treatment and replaces the flap. Over the last eight years, the quality of results and speed of healing have been Tue, 23 Nov 2010 18:10:18 +0000 http://www.medworm.com/index.php?rid=3525295&cid=c_13_26_f&fid=23292&url=http%3A%2F%2Ffeedproxy.google.com%2F%7Er%2Fmnt%2Fhealthnews%2F%7E3%2FZa0fqc5VGv8%2F3C4r The May issue of Ophthalmology, the journal of the American Academy of Ophthalmology, includes a surprising, first report on increasing rates of age-related macular degeneration AMD among Asians, and describes an innovative bypass laser surgery that may help many people with central retinal vein occlusion CRVO avoid serious vision loss. Are Asians as Vulnerable to AMD as Caucasians A major review by Tien Yi Wong, MD, MPH, PhD, and Singapore Eye Research Institute colleagues concludes that Asians ma Tue, 23 Nov 2010 18:10:18 +0000 http://www.medworm.com/index.php?rid=3523815&cid=c_13_30_f&fid=36640&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D20429496%26dopt%3DAbstract Authors Liu A, Manche EE The authors report anterior segment optical coherence tomography OCT imaging findings in a case of central toxic keratopathy following laser in situ keratomileusis LASIK surgery for low hyperopia. OCT imaging month after surgery demonstrates that the flap thickness is maintained and the location of stromal tissue loss is just posterior to the flap in the stromal bed in the affected area. This corresponds to the clinical observation of interface opacity extending posteri Tue, 23 Nov 2010 18:10:18 +0000 http://www.medworm.com/index.php?rid=3511932&cid=c_13_30_f&fid=36640&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D20415292%26dopt%3DAbstract Authors Srinivasan S, Herzig S The femtosecond laser is gaining popularity as a safe and effective alternative to the microkeratome for creating corneal flaps during LASIK. Rarely, gas bubble formation in the anterior chamber during laser flap creation can interfere with the eye tracking and iris registration software during the subsequent excimer laser ablation. Surgical steps to ensure successful eye tracking and iris registration in such cases are described in this report. PMID PubM Tue, 23 Nov 2010 18:10:18 +0000 http://www.medworm.com/index.php?rid=3558351&cid=c_13_26_f&fid=23300&url=http%3A%2F%2Fwww.nhs.uk%2Fnews%2F2010%2F05May%2FPages%2FCorrective-eye-surgery-reviewed.aspx ConclusionThis is a well-conducted Cochrane review, which carried out a thorough search for all suitable trials comparing laser eye surgery with phakic intraocular lenses for moderate to severe short-sightedness.Both techniques achieved the same success rate for the proportion of people who had vision months after surgery. People given phakic lenses were less likely to have a loss in their best spectacle corrected visual acuity after treatment. However, on two occasions, cataracts develop Tue, 23 Nov 2010 18:10:18 +0000 http://www.medworm.com/index.php?rid=3554255&cid=c_13_26_f&fid=23269&url=http%3A%2F%2Fwww.dailymail.co.uk%2Fhealth%2Farticle-1277775%2FFixing-plastic-lens-eyes-replace-laser-surgery-say-experts.html%3FITO%3D1490 A new type of procedure for correcting short-sightedness could be safer than laser eye surgery, according to a new scientific review. Source the Mail online Health Tue, 23 Nov 2010 18:10:18 +0000 http://www.medworm.com/index.php?rid=3697840&cid=c_13_30_f&fid=36641&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D20563585%26dopt%3DAbstract Authors Kohnen T, Klaproth OK Non-corrected residual refractive errors after cataract extraction and implantation of an artificial intraocular lens IOL lead to limited visual acuity or suboptimal usage of enhanced optical properties of IOLs, such as bifocal implants, which are dependent on postoperative emmetropia. In addition to the established corneal procedures for correction of ametropia excimer laser surgery or limbal relaxing incisions sulcus supported pseudophakic supplementary IOLs can al Tue, 23 Nov 2010 18:10:18 +0000 http://www.medworm.com/index.php?rid=3372211&cid=c_13_30_f&fid=33405&url=http%3A%2F%2Fwww.springerlink.com%2Fcontent%2Fd78x246541807539%2F ConclusionsnbspnbspImprovements in Pelli-Robson CS scores were observed during the first year after IVRIVB in eyes with mCNV. Content Type Journal ArticleCategory Retinal DisordersDOI .s---xAuthorsSarah Moussa, The Ludwig Boltzmann Institute for Retinology and Biomicroscopic Laser Surgery Vienna AustriaSiamak Ansari-Shahrezaei, The Ludwig Boltzmann Institute for Retinology and Biomicroscopic Laser Surgery Vienna AustriaEva Smretschnig, The Ludwig Boltzmann Institute for R Tue, 23 Nov 2010 18:10:18 +0000 http://www.medworm.com/index.php?rid=3918021&cid=c_13_30_f&fid=32299&url=http%3A%2F%2Fwww.iovs.org%2Fcgi%2Fcontent%2Ffull%2F51%2F9%2F4641%3Frss%3D1 Conclusions.The authors describe an accurate and reliable setup to measure and record in vivo real-time changes in IOP measurement from the anterior chamber during laser surgery. Femtosecond laser flap creation exerts less extreme IOP fluctuations with improved chamber stability but requires more procedure time than does microkeratome. Source Investigative Ophthalmology Tue, 23 Nov 2010 18:10:18 +0000 http://www.medworm.com/index.php?rid=3434330&cid=c_13_30_f&fid=38496&url=http%3A%2F%2Fwww.jcrsjournal.org%2Farticle%2FPIIS0886335010001367%2Fabstract%3Frss%3Dyes In reference to the article describing histological examination of epi-LASIK flaps, we report a unique postoperative problem. A -year-old man had epi-LASIK in both eyes after standard refractive surgery evaluation. The refractive error was . diopters sphere DS in each eye. Intraoperatively, the patient squeezed his eyes as the epikeratome was creating the epithelial flap. The epithelial flaps appeared thin and were spontaneously amputated. The laser was delivered as usual, and bandage contact le Tue, 23 Nov 2010 18:10:18 +0000 http://www.medworm.com/index.php?rid=3547877&cid=c_13_30_f&fid=38496&url=http%3A%2F%2Fwww.jcrsjournal.org%2Farticle%2FPIIS0886335010003056%2Fabstract%3Frss%3Dyes Conclusion Flap thickness did not affect visual or refractive outcomes with a mechanical microkeratome with either blade type.Financial Disclaimer No author has a financial or proprietary interest in any material or method mentioned. Source Journal of Cataract and Refractive Surgery Tue, 23 Nov 2010 18:10:18 +0000 http://www.medworm.com/index.php?rid=3547882&cid=c_13_30_f&fid=38496&url=http%3A%2F%2Fwww.jcrsjournal.org%2Farticle%2FPIIS0886335010003469%2Fabstract%3Frss%3Dyes We report a case of Mycobacterium abscessus keratitis after elective laser in situ keratomileusis in a -year-old woman. The infection started weeks after uneventful surgery, and the patient received multiple antimicrobial treatments without response. A corneal scrape isolate showed an acid-fast bacterium that was subsequently confirmed by culture to be M abscessus. Prompt treatment of oral moxifloxacin mg twice daily and hourly topical amikacin . was started. Recovery occurred within the first Tue, 23 Nov 2010 18:10:18 +0000 http://www.medworm.com/index.php?rid=3547883&cid=c_13_30_f&fid=38496&url=http%3A%2F%2Fwww.jcrsjournal.org%2Farticle%2FPIIS0886335010003081%2Fabstract%3Frss%3Dyes A -year-old man with a history of myopic laser in situ keratomileusis LASIK had selective laser trabeculoplasty SLT for the treatment of glaucoma in the right eye. He subsequently developed grade diffuse lamellar keratitis DLK. He then elected to have SLT in the left eye and developed grade DLK. To our knowledge, this is the first report of bilateral consecutive late postoperative DLK following SLT after LASIK.Financial disclosure Neither author has a financial or proprietary interest in any Tue, 23 Nov 2010 18:10:18 +0000 http://www.medworm.com/index.php?rid=3547899&cid=c_13_30_f&fid=38496&url=http%3A%2F%2Fwww.jcrsjournal.org%2Farticle%2FPIIS0886335010003688%2Fabstract%3Frss%3Dyes We would like to make several comments about the article by Nishimura etal. Forward movements of the cornea measured by slit scan or similar devices after myopic laser in situ keratomileusis LASIK or photorefractive keratectomy have been reported by many authors. This phenomenon can be explained by the steepening of the posterior cornea caused by postoperative changes in the magnification ratio. Postoperative differences in the corneal thickness measurement by ultrasound and by slit scan or similar de Tue, 23 Nov 2010 18:10:18 +0000