To define the corneal optics of conductive keratoplasty ck and assess the. After the conductive keratoplasty procedure, the corneas of the subjects were obtained through penetrating keratoplasty pkp at different postoperative periods table and evaluated histologically. The field of corneal modification for the correction of. The operating microscope was positioned over or in front of the eye to be treated.
Although nonsurgical correction ie, glasses, contact lenses for patients with lowlevel hyperopia and presbyopia has been widely successful throughout the world, the surgical correctional procedures have been somewhat less accepted. Keratoplasty definition of keratoplasty by medical dictionary. Ltk physician training manual, sunrise technologies, fremont, california. Request pdf conductive keratoplasty conductive keratoplasty is a noninvasive, inoffice procedure for the correction of hyperopia, hyperopic astigmatism, and management of. Topographyguided conductive keratoplasty was successful in reshaping the irregularity of advanced keratoconus quite effectively, reducing irregular astigmatism and improving visual acuity. Ck works by increasing the curvature of the cornea in a uniform fashion and adding more light bending power to. We would like to show you a description here but the site wont allow us. Penetrating keratoplasty pk for post lasik ectasia and hydrops duration. It uses the same principles of laser thermokeratoplasty ltk and radial keratocoagulation, although the former uses. The cornea plays an important role in bending the light properly as it enters the eye. View video to view the video presentation, mouse over the player, then click the arrow.
Conductive keratoplasty ck reduces need for reading glasses. Conductive keratoplasty handpiece with keratoplast tip 90 m wide, 450 m long and insulated stop at the distal end. Paul minotty before undergoing a conductive keratoplasty by dr. It does this by shrinking the collagen fibers of the cornea, analgous to changing the shape of a football by tightening the laces. This animation describes a medical procedure known as near vision conductive keratoplasty created by refractec. Conductive keratoplasty for the correction of low to moderate.
The viewpoint conductive keratoplasty system, including the handpiece with the keratoplast tip and a choice of two lid specula that act as the electrical return path. However, with the help from insurance companies and payment plans available, you can get this surgery at a fraction of the cost. Conductive keratoplasty, an fdaapproved minor surgical procedure, has improved near vision for thousands of people with presbyopia. Conductive keratoplasty offers hyperopes a nonlaser option. Conductive keratoplasty for the correction of low to moderate hyperopia.
Conductive keratoplasty ck can improve your near vision allowing you to see clearly like you could 10 years ago. Our surgeon uses a handheld instrument with a tiny probe smaller than a human hair to apply lowlevel, extremely accurate pulses of radio frequency rf energy to specific spots on thecornea. This type of surgery uses radio waves to shrink the cornea collagen rather than having to resort to lasers. Conductive keratoplasty ck is a new surgical technique for steepening the contours of the cornea to reduce hyperopia alio. In a series of studies, this thesis first will investigate the optics of the ck procedure, in general. Conductive keratoplasty has been approved by the fda for the correction of hyperopia of 0. Pdf version in english pdf version in spanish word version in english word version in spanish.
As the collagen shrinks it pulls the outer edge tighter, which, in turn, increases the dome shape of the cornea. Conductive keratoplasty ck is a nonlaser refractive eye surgery designed to correct mild hyperopia and help people who are middleaged and older reduce their need for reading glasses after they become presbyopic refractec inc. Jul 05, 2011 an excerpt of the video created for one of our clients. Now that conductive keratoplasty with the viewpoint system from refractec has been approved for over a year, and some patients are at their fouryear followup points, surgeons are getting a clearer picture of what the procedures limits are. Ck is a nonlaser technique that uses mild heat energy to reshape the cornea for better vision. Description, policy as not covered and when not covered. Conductive keratoplasty ck benefits, risks, candidcay. Conductive keratoplasty ck eye surgery is a minimally invasive, nonlaser presbyopia treatment that helps to overcome age related longsight. Although not specifically fdaapproved for treatments of keratoconus and after other eye surgeries, it can be selected by the patient and surgeon as. Corneal remodeling medical clinical policy bulletins aetna. New refractive surgery procedures and their implications. With conductive keratoplasty ck, a special probe introduces an electrical current to the peripheral cornea, shrinking the corneal fibers. Nearvision ck conductive keratoplasty can change how the eye focuses light by reshaping the cornea to improve near vision. Conductive keratoplasty is a relatively quick procedure which takes up to 10 minutes to perform.
By their midforties, most people notice a decline in their near vision. Conductive keratoplasty, better known as ck, uses radiofrequency rf energy to reshape the cornea. Vero beach 32963 march 11, 2010 page health laser helps. Conductive keratoplasty ck is a nonlaser refractive eye surgery designed to correct mild hyperopia and help people who are middleaged and older reduce their need for reading glasses after they become presbyopic. Conductive keratoplasty is the only fdaapproved procedure for the correction of presbyopia. Pdf to provide 6month results of a 1year clinical trial evaluating conductive keratoplasty ck for the treatment of presbyopic symptoms in. Conductive keratoplasty ck is a new nonablative, radiofrequencybased.
Conductive keratoplasty ck is a relatively new corneal steepening procedure for the correction of hyperopia and management of presbyopia. Refractive keratoplasty procedures include keratomileusis laser assisted in situ keratomileusis. Conductive keratoplasty ck is a refractive procedure in which regions of the cornea are heated to cause collagen shrinkage and change the corneal shape to correct mild to moderate hyperopia. To assess the regression rate of conductive keratoplasty ck in patients with or without previous laserassisted in situ keratomileusis lasik or photorefractive keratectomy prk. New refractive surgery procedures and their implications for. This form is intended as a sample form of the information that you as the surgeon should personally discuss with the patient. Conductive keratoplasty ck for farsightedness and nearvision ck reduces the need for reading glasses after age 40 and makes use of radio waves that are delivered, painlessly, to the cornea clear front window of the eye in a ringshaped pattern. Conductive keratoplasty ck conductive keratoplasty, better known as ck uses radiofrequency rf energy, instead of a laser, to reshape the cornea and help patients with near vision and reading. Conductive keratoplasty ck without contacts or glasses, corneal conditions and refractive errors like presbyopia can make daytoday tasks more challenging although lasik can correct these issues, many patients are intimidated by the laser or blade used during vision correction. When seeking out conductive keratoplasty cost and plans its essential to weigh the pros and cons. The patient was reminded to fixate on the light from the microscope during corneal marking.
An example of topographyguided conductive keratoplasty for. Description section revised to further define refractive eye surgery and the added refractive surgical procedures. Conductive keratoplasty followed by collagen crosslinking. A guide to laser vision correction online books dr. Next, we use a special device to keep your eye open while we apply dye in a specific, predesigned pattern to help guide the procedure. Recent innovations in minimally invasive anterior and posterior. Nearvision ck the ck stands for conductive keratoplasty is a nonlaser surgical procedure that can correct mild degrees of farsightedness and the loss of accommodation and near vision that begins to become bothersome in our forties due to a normal agerelated loss of focusing ability called presbyopia. Modeling for radiofrequency conductive keratoplasty. Gender, age treated eye followup time between ck and pkp ck spots location 1 m 32 od 24 hours 3 spots at 12, 1, 2 oclock at 6 mm optical zone 2 m 33 os 24 hours 3 spots at 1, 2, 3 oclock at 6 mm optical zone. Keratoplasty definition of keratoplasty by medical.
Clinical trial 1year results on 355 eyes marguerite b. To document the 1year safety, efficacy, and stability results of 355 eyes treated in the multi center study of conductive keratoplasty ck used to. The treatment areas on your cornea are marked for easy identification. Conductive keratoplasty, teaneck, nj, ck, new york city. Maloney, md,4 jonathan davidorf, md,5 moataz sabry, md,1 and the conductive keratoplasty united states investigators group objective. Conductive keratoplasty ck is a type of refractive surgery that uses radio waves to adjust the contour of the cornea by shrinking the corneal collagen around it.
It is popular with those people who have had good sight all their lives until their mid forties when they begin to need reading glasses. Conductive keratoplasty uses radio waves to reshape your cornea for improved focus. Local anesthetic eye drops are usually sufficient to keep your eye numb and free from pain. Conductive keratoplasty ck, an advanced method for vision correction using controlledrelease radiofrequency energy to. Oneyear results suggest the radiofrequency technique provides postoperative stability for hyperopes. About presbyopia and conductive keratoplasty visit our. The uses for conductive keratoplasty are plentiful, and treatment has been approved by the u.
We begin the procedure by administering anesthetic eye drops to numb the tissue. The eightintersection ck marker was dampened with gentian violet or. Ck utilizes radiofrequency rf energy applied to the outer aspects of the cornea to change the central corneal curvature. Nearvision ck uses low energy radio waves to reshape. If youve had good vision your whole life but now find yourself in the unfortunate position of needing reading glasses to see up close, a procedure called conductive keratoplasty ck, or nearvision ck, may be the key to restoring your vision so you can ditch those glasses. Conductive keratoplasty ditch the glasses with nearvision ck.
Conductive keratoplasty ck conductive keratoplasty utilizes radio frequency energy to change the focusing power of the eye used to correct farsightedness hyperopia and presbyopia. Duffey performs conductive keratoplasty ck for presbyopic patients who desire a fast, convenient and comfortable inoffice alternative to laser refractive surgery. Conductive keratoplasty using the viewpoint ck system refractec inc. Its an exciting advancement in vision correction because it is a simple painless procedure that uses radiofrequency rf energy instead of a laser.
The laser employed by the allegreto machine, called an excimer laser, depends on a pseudo molecule produced by an inert gas, a reactive gas, and electrical stimulation of just the right kind. Conductive keratoplasty, or ck, is an alternative to laser surgery for people who are over forty and have hyperopia, astigmatism, or presbyopia. Conductive keratoplasty ck is a treatment used for mild and moderate farsightedness hyperopia and presbyopia, a form of farsightedness known as aging eye, in which the eye gradually loses its ability to focus on closeup objects or print. Developed by refractec, the process received fda approval for reduction of hyperopia, and in march 2004 received the first fda approval for vision technology to improve presbyopia. By directing the energy at the collagen tissue in the cornea in concentric circles, the process adds contour to the tissue so that the eye can focus on near objects. Give the patient a copy and send this form to the hospital or surgery center as verification that you have obtained. General clinical trial results have been published. These analyses will look at putative corneal multifocality, sia, and the optical aberrational profile. To view the video presentation, mouse over the player, then click the arrow. Conductive keratoplasty for the correction of low to. Conductive keratoplasty cornea and laser eye institute. Benefits for the treatment of side effects and complications of noncovered services e. For both treatments, patients are typically 40 years of age or older and have had a stable refraction for at least 12 months. This animation describes a medical procedure known as near vision conductive keratoplasty.
Omic informed consent conductive keratoplasty american. Conductive keratoplasty ck is a surgical technique that delivers radio frequency 350. In 2004, conductive keratoplasty ck received fda approval for treatment of presbyopia in the nondominant eye of a presbyopic patient with an endpoint of. Reading becomes more difficult, even when books or newspapers are held at arms length. Conductive keratoplasty is also recognized as a followup treatment after lasik in the case of overcorrection.
Understanding conductive keratoplasty contact lens. Nearvision conductive keratoplasty ck is a refractive surgery procedure that uses radiofrequency energy to reshape the cornea and correct presbyopia how does nearvision ck work. Nearvision ck uses low energy radio waves to reshape the cornea and restore near vision. Optometric comanagement of refractive surgery american. Ck uses radio waves to shrink the collagen around the outer edge of the cornea. Lasik, in which the front of the cornea is removed, frozen, reshaped, and stitched. Conductive keratoplasty procedure ophthalmology animation. However, it is a refractive surgery, and as with any refractive procedure, potential side effects do exist. May 16, 2003 the limits of conductive keratoplasty now that conductive keratoplasty with the viewpoint system from refractec has been approved for over a year, and some patients are at their fouryear followup points, surgeons are getting a clearer picture of what the procedures limits are. Pdf treatment of presbyopia with conductive keratoplasty. Sep 06, 2017 conductive keratoplasty ck is a treatment used for mild and moderate farsightedness hyperopia and presbyopia, a form of farsightedness known as aging eye, in which the eye gradually loses its ability to focus on closeup objects or print. Kazakos, md, ioannis giapitzakis, md, and ioannis g. Ck utilizes radiofrequency rf energy applied to the outer aspects of the cornea to.
It is a noninvasive alternative to other types of eye surgery. Conductive keratoplasty has allowed many people to lessen their dependency on glasses and usually provides. About presbyopia and conductive keratoplasty visit our san diego or coronado practice for treatment. Refractive keratoplasty is surgery to reshape the cornea of the eye to correct vision problems such as myopia nearsightedness and hyperopia farsightedness. Conductive keratoplasty, also known as ck for short, is a surgery performed on patients that have mild to moderate cases of hyperopia. Conductive keratoplasty for the correction of hyperopia 81 taped closed. An excerpt of the video created for one of our clients. Immediately after pkp, a triangular tissue piece containing the three ck spots was prepared in each eye. Histological study of human corneascase summary case no. The effect is like the tightening of a belt, and the central cornea steepens.
1305 1442 213 701 1104 275 957 412 24 537 985 455 878 730 867 647 178 242 624 1235 1158 83 148 15 775 358 1434 784 1166 1424 78 357 1102 1135 719 261 650 684 914 947