Rotational malposition during laser in situ keratomileusis

American Journal of Ophthalmology
Anil U SwamiApril A White

Abstract

To investigate the degree of rotational malposition in eyes undergoing laser in situ keratomileusis. Prospective observational study. We measured the rotational position of 240 eyes of 169 patients who underwent treatment for myopic or hyperopic astigmatism with the Alcon Summit Autonomous (Orlando, Florida) LADARVision excimer laser. Immediately preoperatively, each eye was marked while the patient was seated upright. Rotational position was measured on the supine patient immediately before beginning the laser exposure. For all 240 eyes, mean +/- standard deviation (SD) torsional misalignment was 4.1 +/- 3.7 degrees (right eye 3.8 +/- 3.7 degrees, left eye 4.2 +/- 3.6 degrees). A total of 20 eyes (8%) had a deviation of greater than 10 degrees. A 4 degree and 10 degree misalignment would theoretically result in a 14% and 35% undercorrection of astigmatism, respectively. Preoperative marking of the upright patient and subsequent rotational alignment of the supine patient before laser treatment may reduce the error in correction of astigmatism during excimer laser vision correction surgery.

References

Jul 1, 1995·Journal of Cataract and Refractive Surgery·E M Smith, J H Talamo
Feb 11, 1998·Journal of Cataract and Refractive Surgery·A SuzukiY Tano
Jan 3, 2001·Journal of Cataract and Refractive Surgery·S G FarahF S Brightbill

❮ Previous
Next ❯

Citations

Feb 24, 2004·The British Journal of Ophthalmology·R BeckerH Wassill
Nov 11, 2006·Der Ophthalmologe : Zeitschrift der Deutschen Ophthalmologischen Gesellschaft·T KohnenA Strenger
Feb 10, 2016·Journal of Refractive Surgery·Samuel Arba-Mosquera, Diego de Ortueta
May 31, 2016·Journal of Current Ophthalmology·Hamid GharaeeHashem Naseri
Jul 26, 2011·Journal of Cataract and Refractive Surgery·Nienke VisserRudy M M A Nuijts
Mar 12, 2011·Contact Lens & Anterior Eye : the Journal of the British Contact Lens Association·Ioannis M AslanidesSai Kolli
Sep 28, 2010·Journal of Cataract and Refractive Surgery·Jean-Luc FebbraroDamien Gatinel
Mar 6, 2010·Journal of Cataract and Refractive Surgery·Elizabeth P ShenFung-Rong Hu
Mar 3, 2009·Journal of Cataract and Refractive Surgery·Mounir KhalifaMohamed Shafik Shaheen
Sep 25, 2008·Journal of Cataract and Refractive Surgery·Joseph J K Ma, Santos S Tseng
Sep 25, 2008·Journal of Cataract and Refractive Surgery·John Chang
Aug 30, 2008·Journal of Cataract and Refractive Surgery·Theeratep TantayakomDavid J Schanzlin
Jul 5, 2008·Ophthalmology·Steven C SchallhornUNKNOWN American Academy of Ophthalmology
Mar 26, 2008·Journal of Cataract and Refractive Surgery·Hyojin Kim, Choun-Ki Joo
Mar 13, 2016·Graefe's Archive for Clinical and Experimental Ophthalmology = Albrecht Von Graefes Archiv Für Klinische Und Experimentelle Ophthalmologie·Mehdi ShajariThomas Kohnen
Jan 27, 2005·Clinical & Experimental Ophthalmology·Lionel KowalBurton Kushner
Mar 24, 2009·Clinical & Experimental Optometry : Journal of the Australian Optometrical Association·Fang WuPaul J Dougherty
Dec 22, 2005·IEEE Transactions on Bio-medical Engineering·Dimitri A Chernyak
May 6, 2004·American Journal of Ophthalmology·George D KymionisIoannis G Pallikaris
Mar 31, 2004·Journal of Cataract and Refractive Surgery·Dimitri A Chernyak
Jul 5, 2006·Survey of Ophthalmology·Salomon EsquenaziOlga Bibas
Oct 4, 2015·Journal of Cataract and Refractive Surgery·Samuel Arba Mosquera, Shwetabh Verma
Jun 23, 2015·Journal of Ophthalmology·Kazutaka KamiyaHidenaga Kobashi
Aug 20, 2014·Journal of Cataract and Refractive Surgery·Steven DeweyUNKNOWN ASCRS Cataract Clinical Committee, Instrumentation and IOLs Subcommittee
Aug 15, 2014·The British Journal of Ophthalmology·Adam L PrickettWallace Chamon
Feb 4, 2016·IEEE Transactions on Bio-medical Engineering·Dustin Morley, Hassan Foroosh
Feb 6, 2013·Journal of the Formosan Medical Association = Taiwan Yi Zhi·Yao-Lin LiuYu-Chih Hou
Mar 17, 2012·Journal of Refractive Surgery·Xiangjun ChenTor Paaske Utheim
Sep 1, 2009·Journal of Refractive Surgery·Celine BucherIsaak Schipper
Mar 8, 2012·International Ophthalmology Clinics·Clara C Chan, Edward J Holland
Dec 12, 2012·International Ophthalmology Clinics·Bryan S LeeDavid R Hardten
Feb 5, 2008·Journal of Cataract and Refractive Surgery·Sudipta GhoshRasik B Vajpayee
Aug 22, 2017·Journal of Cataract and Refractive Surgery·Chad D HummelRobert J Weinstock

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.

Related Papers

Journal of Cataract and Refractive Surgery
E M Smith, J H Talamo
Journal of Cataract and Refractive Surgery
Martha J Tjon-Fo-SangW Houdijn Beekhuis
Journal of the Optical Society of America. A, Optics, Image Science, and Vision
A GuiraoIan G Cox
© 2022 Meta ULC. All rights reserved