EyeWorld is the official news magazine of the American Society of Cataract & Refractive Surgery.
Issue link: https://digital.eyeworld.org/i/853444
EW INTERNATIONAL 92 August 2017 by Stefanie Petrou Binder, MD, EyeWorld Contributing Writer Innovative pinhole implant used in pseudophakic patients with corneal scarring and irregular corneal astigmatism resulted in improvements in uncorrected visual acuity O cular trauma can present scenarios with myri- ad complications that challenge the eye surgeon to come up with viable solutions for patients to regain their sight. Speaking at the 2017 ASCRS•ASOA Symposium & Con- gress as part of the "Symposium of Challenging Cases" sponsored by the Brazilian Association of Cataract and Refractive Surgery (BRASCRS), Fernando Trindade, MD, PhD, director, Instituto de Oftalmologia Cançado Trindade, Belo Horizon- te, Brazil, described his use of the XtraFocus pinhole implant (Morch- er, Stuttgart, Germany) to restore vision in eyes complicated by severe corneal trauma. "This new device can be very helpful in severely damaged eyes," Dr. Trindade said. "We have used the XtraFocus pinhole intraocular implant in pseudophakic patients with different kinds of eye trauma, with excellent outcomes, especially in patients with highly irregular cor- neal astigmatism with large pupils. There are few and complex solutions for these patients, and because they will never regain a perfect optical system, the pinhole effect, based on the stenopeic principle, an old and well-established principle in ophthalmology, is very useful. The black pinhole device is best used as a secondary piggyback implant." Black pinhole implant The XtraFocus is an opaque black intraocular device with an overall diameter of 14 mm and a central pinhole opening of 1.3 mm. The hydrophobic acrylic material that makes up the device blocks visible light, but is completely transparent to infrared light more than 750 nm. The implant is well polished with rounded edges, and has very thin, flexible open loop haptics. The foldable device is insert- ed using an injector and follows a Pinhole vision The pinhole implant is able to reduce the impact of post-RK aberrations. The implant may enhance the results of cataract surgery in cases of keratoconus. Presentation spotlight