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Scleral lens

Qintuo Pan, Zhengwei Yang, Xiaomeng Chen, Wenlong Wei, Zhisheng Ke, Ding Chen, Fang Huang, Junyong Cai, Zhenquan Zhao
PURPOSE: To describe the clinical outcomes of traumatic aphakic eyes with corneal astigmatism after using a novel technique for toric intraocular lens suture fixation. METHODS: In total, 12 eyes of 12 patients who underwent a new scleral suture fixation technique of one-piece toric intraocular lens (SN6AT series, Alcon Inc., TX, USA) were included in our retrospective study. Preoperative patient status, postoperative visual acuity and refractive outcomes, postoperative intraocular lens rotation, tilt, decentration, and complications were analyzed...
April 1, 2018: European Journal of Ophthalmology
Jocelyn Lam, Bradley Sifrig, Hoon Jung
Purpose: We report an unusual case of rapid and severe anterior capsular contraction associated with secondary intraocular lens (IOL) dislocation following cataract surgery in a patient with unspecified rod-cone dystrophy. Case Report: A 68-year-old woman with a history of uncharacterized bilateral rod-cone dystrophy presented with blurry vision 1 month after cataract surgery. Best corrected visual acuity was 20/40 in the operative eye. Slit-lamp exam showed severe anterior capsular phimosis limiting view of the fundus...
January 2018: Case Reports in Ophthalmology
Samaresh Srivastava, Vaishali Vasavada, Viraj Vasavada, Shail Vasavada, Mamidipudi R Praveen, Rajendra Reddy, Abhay R Vasavada
PURPOSE: To compare the change in ocular higher-order wavefront aberrations (HOAs), visual acuity, and modulation transfer function (MTF) after lens extraction with intraocular lens (IOL) implantation in patients with subluxated lenses. SETTING: Iladevi Cataract & IOL Research Centre, Ahmedabad, India. DESIGN: Prospective case series. METHODS: Eyes with subluxated lenses having lens extraction with IOL implantation were included...
March 31, 2018: Journal of Cataract and Refractive Surgery
Seung Yong Choi, Youlim Lee, Mirinae Kim, Young Hoon Park
PURPOSE: To investigate the outcomes of scleral buckling surgery performed under a slit-lamp illumination system (Visulux) with a contact wide-angle viewing lens (Mini Quad) in patients with rhegmatogenous retinal detachment (RRD) and to compare these outcomes with those of surgery performed under an indirect ophthalmoscope. METHODS: By retrospective review of electronic medical records, patients with RRD who had undergone scleral buckling surgery were identified...
March 13, 2018: Korean Journal of Ophthalmology: KJO
Xiao Lin, Bing-Jie Wang, Yen-Chiao Wang, Ren-Yuan Chu, Jin-Hui Dai, Xing-Tao Zhou, Xiao-Mei Qu, Hong Liu, Hao Zhou
AIM: To address the microstructure and biomechanical changes of the sclera of rabbits after negative lens application by spectacle frame apparatus. METHODS: Five New Zealand rabbits of seven weeks post-natal were treated with -8 D lens monocularly over the course of two weeks. Refractive errors and axial length (AXL) were measured at the 1st , 7th and 14th days of the induction period. Ultrastructure of sclera was determined with electron microscopy. Biomechanical properties were tested by an Instron 5565 universal testing machine...
2018: International Journal of Ophthalmology
M Baali, S Belghmaidi, H Ahammou, S Belgadi, I Hajji, A Moutaouakil
PURPOSE: To evaluate the contribution of scleral lenses in terms of improving quality of life and vision. METHODS: We conducted a retrospective study of the quality of life (QOL) of patients fitted with scleral lenses, between November 2015 and November 2016 in the Marrakech university hospital department of ophthalmology. QOL was assessed before and after scleral lens (ICD) adaptation using a version of the National Eye Institute Visual Function Questionnaire 25 translated into the Moroccan dialect of Arabic...
March 21, 2018: Journal Français D'ophtalmologie
Takuya Kataoka, Motohiro Kamei
PURPOSE: To report a novel technique for intrascleral fixation of a posterior chamber intraocular lens using a silicone microtube to manipulate the haptics into position. METHODS: Intrascleral fixation was performed in six eyes and the results evaluated in this retrospective case series. A silicone microtube with a 0.2-mm external diameter was passed from a sclerocorneal incision through the chamber and a sclerotomy made using a 30-gauge needle. The tips of the intraocular lens haptics were connected to the silicone microtube outside the eye...
March 20, 2018: Retina
Stephen J Vincent, David Alonso-Caneiro, Henry Kricancic, Michael J Collins
PURPOSE: To develop a methodology to reliably determine the thickness profile of scleral contact lenses and examine the relationship between the centre and average lens thickness for a range of lens designs and back vertex powers. METHODS: High-resolution images of 37 scleral trial lenses (Epicon LC, Rose K2 XL and ICD 16.5) were captured using an optical coherence tomographer, and their thickness profiles were generated after correcting for known measurement artefacts...
March 16, 2018: Contact Lens & Anterior Eye: the Journal of the British Contact Lens Association
Muriel M Schornack, Cherie B Nau
OBJECTIVES: Debris accumulation in the postlens fluid reservoir during scleral lens wear is clinically observed. We evaluated a method to quantify increases in turbidity of the postlens fluid reservoir by assessing changes in optical density of the fluid over time and compared these changes during 2 hr of scleral lens wear using three different lens designs. METHODS: Thirty-five patients (age, mean [SD], 29 [7] years) with no history of eye disease were enrolled in the study...
March 16, 2018: Eye & Contact Lens
Stephen J Vincent, David Alonso-Caneiro, Michael J Collins
PURPOSE: To examine the magnitude and time course of central epithelial, stromal and total corneal thickness changes during sealed miniscleral contact lens wear and the influence of initial central corneal clearance upon these thickness changes. METHODS: High-resolution OCT images were captured over an 8 h period of miniscleral contact lens wear (using a rotationally symmetric 16.5 mm diameter lens) in 15 young, healthy participants with normal corneae. Corneal thickness data were derived from OCT images using semi-automated image processing techniques over the central 4 mm...
March 13, 2018: Contact Lens & Anterior Eye: the Journal of the British Contact Lens Association
Jun Hui Lee, Lucia Rivera Sanchez, Travis Porco, Ying Han, Alejandra G de Alba Campomanes
PURPOSE: To study the correlation between corneal and scleral intraocular pressure (IOP) by pneumatonometry in pediatric patients. DESIGN: Cross-sectional study. PARTICIPANTS: Patients (age range, 0-15 years) undergoing an eye examination under anesthesia or eye surgery were recruited at the University of California, San Francisco, Benioff Children's Hospital between July 2015 and April 2016. METHODS: Intraocular pressure measurements were obtained by pneumatonometry on the central cornea and the inferonasal and inferotemporal sclera in a random order...
March 12, 2018: Ophthalmology
Eric Nudleman, Yoshihiro Yonekawa, Jonathan L Prenner
PURPOSE OF REVIEW: The surgical approach to eyes needing a secondary intraocular lens have evolved rapidly in recent years. Here, we will focus on techniques for scleral-fixation of intraocular lenses (IOLs), and will review the evidence for their safety and efficacy. RECENT FINDINGS: Transscleral fixation of IOLs refers the placement of lens haptics within scleral tunnels to stabilize the lens in eyes that lack adequate capsular support. Various surgical techniques have been reported recently to accomplish this goal...
March 13, 2018: Current Opinion in Ophthalmology
Amir Hadayer, Sidharth Puri, Janelle Fassbender Adeniran, Wei Wang, Henry J Kaplan
No abstract text is available yet for this article.
March 8, 2018: Retina
Kelly E Knickelbein, Mallory Stock, Sebastian E Carrasco, Christopher M Reilly, Mary E Lassaline
An 18-year-old American Miniature Horse mare was presented with a complaint of a scleral swelling affecting the right eye and a history of suspected trauma 6 weeks prior to evaluation. Clinical findings included severe blepharospasm, a bulbous swelling of the dorsotemporal bulbar conjunctiva, and phthisis bulbi. Ocular ultrasound was recommended but declined. Enucleation was elected for the blind, painful eye and was performed standing. Gross and histopathologic examinations of the globe were consistent with extrusion of the lens to the episcleral space, which is classified as a traumatic phacocele when associated with naturally occurring trauma...
March 8, 2018: Veterinary Ophthalmology
Norihiko Yoshida, Takashi Kojima, Sho Yokoyama, Rie Horai, Kazuo Ichikawa
We report a new surgical technique of intrascleral posterior chamber intraocular lens (PC IOL) fixation using a newly developed hook-shaped haptic IOL (NX-70CH) and a 25-gauge loop-shaped haptic manipulator. Previous techniques of intrascleral PC IOL fixation had 2 major technical challenges; that is, externalization of the haptic and fixation of the haptic into the scleral tunnel. The new IOL and manipulator can facilitate externalization and secure fixation of the IOL haptic and can be used for suture fixation or implantation in the capsular bag in cases with presumed subluxated lens...
March 2, 2018: Journal of Cataract and Refractive Surgery
Spyridon Dimopoulos, Vasileios Dimopoulos, Gunnar Blumenstock, Hugo Trevino-Rodriguez, Karl Ulrich Bartz-Schmidt, Martin S Spitzer, Bogomil Voykov
PURPOSE: To assess the long-term results and complications of scleral-fixated posterior chamber intraocular lenses (PC IOLs) with the knotless Z-suture technique. SETTING: University Eye Hospital, Tübingen, Germany. DESIGN: Retrospective case series. METHODS: Records of consecutive patients who had implantation of scleral-fixated PC IOLs with the knotless Z-suture technique with a minimum follow-up of 3 years were reviewed...
March 2, 2018: Journal of Cataract and Refractive Surgery
Yu Mizuno, Yosuke Sugimoto
PURPOSE: To compare short-term clinical outcomes between scleral-fixated and transscleral suture-fixated intraocular lens (IOL) implantation. SEETING: Hiroshima Prefectural Hospital, Japan. DESIGN: A retrospective, nonrandomized, comparative case series. METHODS: Eighty-nine eyes of 87 patients were included in this study; 45 eyes underwent transscleral suture-fixated IOL implantation (group 1), and 44 eyes underwent scleral-fixated IOL implantation (group 2) between February 2009 and June 2017 in the department of Ophthalmology, Hiroshima Prefectural Hospital, Japan...
March 3, 2018: International Ophthalmology
AnnMarie Hipsley, Brad Hall, Karolinne M Rocha
Presbyopia corrections traditionally have been approached with attempts to exchange power, either at the cornea or the lens planes, inducing multifocality, or altering asphericity to impact the optical system. Treatments that affect the visual axis, such as spectacle and contact lens correction, refractive surgeries, corneal onlays and inlays, and intraocular lenses are typically unable to restore true accommodation to the presbyopic eye. Their aim is instead to enhance 'pseudoaccommodation' by facilitating an extended depth-of-focus for which vision is sufficient...
2018: Eye and Vision (London, England)
Daddi Fadel
PURPOSE: To summarize the research findings on the ocular surface profile, to provide a definition and a classification of the corneoscleral shape, and to offer guidelines in selecting scleral lens design. METHODS: The definition of rotational symmetry and rotational asymmetry was inquired and PubMed searches were conducted. RESULTS: The better understanding of the scleral contact lens comportment on the eye and the introduction of new diagnostic instruments to measure the anterior ocular surface have led to improve comprehension of corneoscleral contour formulating new scleral lens designs...
February 26, 2018: Contact Lens & Anterior Eye: the Journal of the British Contact Lens Association
Xingyi Li, Wei Wang, Wenbin Huang, Shida Chen, Jiawei Wang, Zhonghao Wang, Yaoming Liu, Mingguang He, Xiulan Zhang
PURPOSE: To measure the anterior and posterior ocular biometric characteristics concurrently and to explore the relationship between iris, ciliary body and choroid in acute primary angle closure eyes (APAC) and fellow eyes. METHODS: It is a prospective, cross-sectional study. Thirty patients with recent APAC were finally enroled in it. Anterior and posterior uveal parameters were measured simultaneously by anterior segment optical coherence tomography (AS-OCT), swept-source optical coherence tomography (SS-OCT) and ultrasound biomicroscopy (UBM)...
March 1, 2018: Eye
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