keyword
MENU ▼
Read by QxMD icon Read
search

Keratocone

keyword
https://www.readbyqxmd.com/read/29746325/corneal-cross-linking-in-pediatric-patients-evaluating-treated-and-untreated-eyes-5-year-follow-up-results
#1
Lior Or, Assaf Rozenberg, Adi Abulafia, Isaac Avni, David Zadok
PURPOSE: To evaluate the long-term results of corneal collagen cross-linking (CXL) for treatment of pediatric keratoconus and the long-term outcomes of the fellow untreated keratoconic eye in patients younger than 18 years old. METHODS: A retrospective case analysis was performed on 88 eyes of 44 patients aged 18 years or younger, with keratoconus, who underwent CXL in at least 1 eye. Follow-up measurements, for the treated and untreated eye pair, taken up to 5 years after treatment, were compared with baseline values...
May 3, 2018: Cornea
https://www.readbyqxmd.com/read/29719635/mean-posterior-corneal-power-and-astigmatism-in-normal-versus-keratoconic-eyes
#2
Sepehr Feizi, Siamak Delfazayebaher, Mohammad Ali Javadi, Farid Karimian, Vahid Ownagh, Fatemeh Sadeghpour
Purpose: To compare mean posterior corneal power and astigmatism in normal versus keratoconus affected eyes and determine the optimal cut-off points to maximize sensitivity and specificity in discriminating keratoconus from normal corneas. Methods: A total of 204 normal eyes and 142 keratoconus affected eyes were enrolled in this prospective comparative study. Mean posterior corneal power and astigmatism were measured using a dual Scheimpflug camera. Correlation coefficients were calculated to assess the relationship between the magnitudes of keratometric and posterior corneal astigmatism in the study groups...
April 2018: Journal of Ophthalmic & Vision Research
https://www.readbyqxmd.com/read/29703286/transepithelial-corneal-crosslinking-for-keratoconus
#3
Peter S Hersh, Michael J Lai, John D Gelles, Sebastian P Lesniak
PURPOSE: To evaluate outcomes of corneal crosslinking (CXL) using a transepithelial technique for the treatment of keratoconus. SETTING: Cornea and refractive surgery subspecialty practice. DESIGN: Prospective case series. METHODS: Transepithelial CXL was performed in keratoconic eyes using riboflavin 0.1% and topical anesthetic containing benzalkonium chloride to facilitate riboflavin diffusion through the epithelium...
March 2018: Journal of Cataract and Refractive Surgery
https://www.readbyqxmd.com/read/29661163/characteristics-of-keratoconic-patients-at-two-main-eye-centres-in-palestine-a-cross-sectional-study
#4
Yousef Shanti, Ithar Beshtawi, Sa'ed H Zyoud, Ahlam Abu-Samra, Areen Abu-Qamar, Reem Barakat, Reham Shehada
BACKGROUND: Keratoconus (KC) is a multifactorial, degenerative ectatic condition of the cornea. It usually manifests during late adolescence or the early twenties. A painless disease, KC may end with severe visual loss. The prevalence of KC in middle-eastern countries is much higher than in other regions of the world. This may be due to genetic and environmental risk factors and consanguinity. The goal of this study is to explore the demographic profile of Palestinian keratoconic patients...
April 16, 2018: BMC Ophthalmology
https://www.readbyqxmd.com/read/29576880/three-year-outcomes-of-cross-linking-plus-combined-cross-linking-with-femtosecond-laser-intracorneal-ring-segments-implantation-for-management-of-keratoconus
#5
Mohammed Iqbal Hafez Saleem, Hosam A Ibrahim Elzembely, Mortada Ahmed AboZaid, Mohammed Elagouz, Ahmed Mohamed Saeed, Osama Ali Mohammed, Ahmed Gad Kamel
Purpose: To analyze the results of three-year outcomes of combined epithelium-on cross-linking with femtosecond laser ICRS (cross-linking PLUS) for keratoconus management. Design: A retrospective multicenter clinical study. Methods: 43 eyes of 38 patients were subjected to preoperative and postoperative UCVA, BCVA, refraction, Pentacam pachymetry, and keratometry examinations at 3-, 6-, 12-, 24-, and 36-month follow-up period. Results: The preoperative and postoperative mean UCVA was 1...
2018: Journal of Ophthalmology
https://www.readbyqxmd.com/read/29572936/long-term-outcomes-of-posterior-chamber-phakic-intraocular-lens-implantation-in-keratoconus
#6
Seyed Javad Hashemian, Nahid Saiepoor, Leila Ghiasian, Hossein Aghai, Mohammad Ebrahim Jafari, Sayyed Pooya Alemzadeh, Mahsa Sadat Hashemian, Seyed Mahyar Hashemian
BACKGROUND: In this retrospective observational case series study, the aim was to evaluate the long-term safety, efficacy, stability and predictability of posterior chamber phakic intraocular lens (pIOL) implantation to correct myopia and myopic astigmatism associated with keratoconus. METHODS: Uncorrected distance visual acuity (UDVA), best spectacle-corrected distance visual acuity (BSCDVA), refraction and adverse effects were evaluated in 23 keratoconic eyes of 13 patients after five years with Visian ICMV4 pIOL (STAAR Surgical)...
March 23, 2018: Clinical & Experimental Optometry: Journal of the Australian Optometrical Association
https://www.readbyqxmd.com/read/29566542/comparative-evaluation-of-scheimpflug-tomography-parameters-between-thin-non-keratoconic-subclinical-keratoconic-and-mild-keratoconic-corneas
#7
Samira Huseynli, José Salgado-Borges, Jorge L Alio
PURPOSE: To evaluate and compare the topographic and topometric parameters, thickness profile data, and data from enhanced elevation maps of thin non-keratoconic, subclinical keratoconic, and mild keratoconic corneas with the Pentacam Scheimpflug corneal tomography and to study the usefulness of different parameters to differentiate keratoconus from topographically normal thin corneas. METHODS: The study included 30 eyes with subclinical keratoconus, 30 eyes with mild-stage keratoconus, and 54 healthy eyes with minimal pachymetry ≤500 µm, with a mean age of 21...
March 1, 2018: European Journal of Ophthalmology
https://www.readbyqxmd.com/read/29564655/template-based-methodology-for-the-simulation-of-intracorneal-segment-ring-implantation-in-human-corneas
#8
REVIEW
Julio Flecha-Lescún, Begoña Calvo, Jesús Zurita, Miguel Ángel Ariza-Gracia
Keratoconus is an idiopathic, non-inflammatory and degenerative corneal disease characterised by a loss of the organisation in the corneal collagen fibrils. As a result, keratoconic corneas present a localised thinning and conical protrusion with irregular astigmatism and high myopia that worsen visual acuity. Intracorneal ring segments (ICRSs) are used in clinic to regularise the corneal surface and to prevent the disease from progressing. Unfortunately, the post-surgical effect of the ICRS is not explicitly accounted beforehand...
March 21, 2018: Biomechanics and Modeling in Mechanobiology
https://www.readbyqxmd.com/read/29564418/central-corneal-thickness-measurement-with-different-devices-in-keratoconic-patients
#9
Maddalena De Bernardo, Nicola Rosa
No abstract text is available yet for this article.
March 2018: Journal of Current Ophthalmology
https://www.readbyqxmd.com/read/29554011/logmar-and-stereoacuity-in-keratoconus-corrected-with-spectacles-and-rigid-gas-permeable-contact-lenses
#10
Vinay Kumar Nilagiri, Sangeetha Metlapally, Parthasarathi Kalaiselvan, Clifton M Schor, Shrikant R Bharadwaj
SIGNIFICANCE: This study showed an improvement in three-dimensional depth perception of subjects with bilateral and unilateral keratoconus with rigid gas-permeable (RGP) contact lens wear, relative to spectacles. This novel information will aid clinicians to consider RGP contact lenses as a management modality in keratoconic patients complaining of depth-related difficulties with their spectacles. PURPOSE: The aim of this study was to systematically compare changes in logMAR acuity and stereoacuity from best-corrected spherocylindrical spectacles to RGP contact lenses in bilateral and unilateral keratoconus vis-à-vis age-matched control subjects...
March 16, 2018: Optometry and Vision Science: Official Publication of the American Academy of Optometry
https://www.readbyqxmd.com/read/29525838/long-term-database-analysis-of-conventional-and-accelerated-crosslinked-keratoconic-mid-european-eyes
#11
Efstathios Vounotrypidis, Alexis Athanasiou, Karsten Kortüm, Daniel Kook, Mehdi Shajari, Siegfried Priglinger, Wolfgang J Mayer
PURPOSE: To investigate the long-term efficacy of accelerated corneal collagen cross-linking (CXL) in a large mid-European cohort with progressive keratoconus. METHODS: Four hundred thirteen eyes of 316 patients with progressive keratoconus were enrolled and treated with conventional (group A) or accelerated (group B) CXL. Uncorrected distance visual acuity (UDVA), corrected distance visual acuity (CDVA), slit lamp, and Pentacam® examinations were performed before and 12, 24, and 36 months after surgery...
June 2018: Graefe's Archive for Clinical and Experimental Ophthalmology
https://www.readbyqxmd.com/read/29522231/histological-and-microrna-signatures-of-corneal-epithelium-in-keratoconus
#12
Yu Meng Wang, Tsz Kin Ng, Kwong Wai Choy, Hoi Kin Wong, Wai Kit Chu, Chi Pui Pang, Vishal Jhanji
PURPOSE: To illustrate the histopathology of keratoconic corneal epithelia and its micro-ribonucleic acid (miRNA) regulation. METHODS: Corneal epithelia were collected from 27 patients with keratoconus and 26 normal patients after surgery or by impression cytology. The miRNA profile was determined using miRNA microarray. The biological roles of miRNA target genes were delineated by gene ontology and pathway analyses. The expressions of significant miRNAs were validated using TaqMan polymerase chain reaction (PCR), whereas protein localization and expression of the miRNA target genes were examined by immunofluorescence and immunoblotting analyses...
March 1, 2018: Journal of Refractive Surgery
https://www.readbyqxmd.com/read/29502620/repeatability-and-reliability-of-ectasia-display-and-topometric-indices-with-the-scheimpflug-system-in-normal-and-keratoconic-eyes
#13
Pinar Kosekahya, Mustafa Koc, Mehtap Caglayan, Hasan Kiziltoprak, Cemile Ucgul Atilgan, Pelin Yilmazbas
PURPOSE: To evaluate the repeatability and reliability of Belin-Ambrósio Enhanced Ectasia Display-III indices and topometric indices with a Scheimpflug system (Pentacam HR) in normal eyes and keratoconic eyes. SETTING: Ulucanlar Eye Research and Training Hospital, Ankara, Turkey. DESIGN: Prospective case series. METHODS: The same operator performed 3 consecutive successive measurements with the Scheimpflug device in the eyes of patients with keratoconus (keratoconus group) and healthy volunteers (normal group)...
January 2018: Journal of Cataract and Refractive Surgery
https://www.readbyqxmd.com/read/29458037/distinguishing-keratoconic-eyes-and-healthy-eyes-using-ultrahigh-resolution-optical-coherence-tomography-based-corneal-epithelium-thickness-mapping
#14
Niklas Pircher, Florian Schwarzhans, Stephan Holzer, Jan Lammer, Doreen Schmidl, Ahmed M Bata, Renè M Werkmeister, Gerald Seidel, Gerhard Garhöfer, Andreas Gschließer, Leopold Schmetterer, Gerald Schmidinger
PURPOSE: To find differences in epithelial thickness (ET) maps of eyes with keratoconus (KC) and healthy eyes. DESIGN: Institutional cross-sectional study. METHODS: In this study 40 keratoconic eyes and 76 healthy eyes were scanned using a custom-built ultrahigh-resolution optical coherence tomography system. Automated segmentation ET maps with 17 subsectors were calculated (central, temporal inferior, temporal superior, nasal inferior, and nasal superior area)...
May 2018: American Journal of Ophthalmology
https://www.readbyqxmd.com/read/29439700/ocular-dimensions-of-the-chinese-adolescents-with-keratoconus
#15
Weijun Jian, Yang Shen, Yingjun Chen, Mi Tian, Xingtao Zhou
BACKGROUND: Adolescent KC is a special segment of the general KC population because an adolescents's eyes are still susceptible to blurred vision and optical defocus during the sensitive period of ocular and visual development. In the present study, we evaluated the ocular dimensions of 53 KC adolescents. METHODS: One hundred and six KC eyes of 53 (42 boys and 11 girls) KC adolescents (age 15.5 ± 1.7 years, range 11 to 18) were involved in this retrospective study...
February 13, 2018: BMC Ophthalmology
https://www.readbyqxmd.com/read/29425386/rotational-stability-of-monofocal-and-trifocal-intraocular-toric-lenses-with-identical-design-and-material-but-different-surface-treatment
#16
Kristof Vandekerckhove
PURPOSE: To compare the rotational stability, total misalignment, and visual and refractive outcomes achieved with a trifocal toric versus a monofocal toric intraocular lens (IOL). METHODS: In this prospective, interventional case series, eyes of patients consecutively scheduled for cataract surgery who had clinically relevant astigmatism were implanted with a FineVision Pod FT trifocal toric IOL or an Ankoris monofocal toric IOL (both PhysIOL SA, Liège, Belgium)...
February 1, 2018: Journal of Refractive Surgery
https://www.readbyqxmd.com/read/29422750/keratoconus-asymmetry-between-both-eyes-based-on-corneal-tomography
#17
Nathalie Bussières, Osama Hamid Ababneh, Mohammed Ali Abu Ameerh, Muawyah D Al Bdour
PURPOSE: To characterize the asymmetry between both eyes in patients with keratoconus based on corneal tomography. MATERIALS AND METHODS: All patients with keratoconus who presented to the eye clinic at Jordan University Hospital between January 2008 and November 2011 were included in the study. Using computerized corneal tomography, the keratometric values and indices of both eyes of participants with keratoconus and normal controls were compared. For both eyes to be considered symmetrical, the difference between the mean curvature power (Km), flat curvature power (K1), or steep curvature power (K2) in both eyes was equal to or <2...
October 2017: Middle East African Journal of Ophthalmology
https://www.readbyqxmd.com/read/29416380/keratoconus-treatment-using-femtosecond-assisted-intrastromal-corneal-graft-faiscg-surgery-a-case-series
#18
Khosrow Jadidi, Seyed Aliasghar Mosavi
We describe an intrastromal corneal graft technique that uses femtosecond laser to create a desirable corneal lenticule with precise diameter, depth, and shape as well as an intra-stromal pocket in keratoconus patients. The technique seems to be a feasible and safe treatment option to treat keratoconic eyes with reference to the irregularity and instability of cornea. The technique can be performed easily and appears safe and effective. At 7 days postoperatively, all eyes were white and quiet, and the grafts were clear...
2018: International Medical Case Reports Journal
https://www.readbyqxmd.com/read/29393696/non-orthogonal-corneal-astigmatism-among-normal-and-keratoconic-brazilian-and-chinese-populations
#19
Ahmed Abass, John Clamp, FangJun Bao, Renato Ambrósio, Ahmed Elsheikh
PURPOSE: To investigate the prevalence of non-orthogonal astigmatism among normal and keratoconic Brazilian and Chinese populations. METHODS: Topography data were obtained using the Pentacam High Resolution (HR) system ® from 458 Brazilian (aged 35.6 ± 15.8 years) and 505 Chinese (aged 31.6 ± 10.8 years) eyes with no history of keratoconus or refractive surgery, and 314 Brazilian (aged 24.2 ± 5.7 years) and 74 Chinese (aged 22.0 ± 5.5 years) keratoconic eyes...
February 2, 2018: Current Eye Research
https://www.readbyqxmd.com/read/29381972/outcomes-of-iontophoretic-corneal-collagen-crosslinking-in-keratoconic-eyes-with-very-thin-corneas
#20
Alina Cantemir, Anisia-Iuliana Alexa, Bogdan Gabriel Galan, Nicoleta Anton, Roxana Elena Ciuntu, Ciprian Danielescu, Dorin Chiselita, Danut Costin
The purpose of this retrospective study was to report the results of iontophoretic corneal collagen crosslinking (I-CXL) with riboflavin and ultraviolet A irradiation in patients affected by keratoconus, each with thinnest pachymetry values of <400 μ (with epithelium) and not treatable using standard epithelium-off technique.Fifteen eyes of 15 patients affected by progressive keratoconus and with thinnest pachymetry values <400 μ underwent I-CXL. The uncorrected (UDVA) and corrected (CDVA) distance visual acuity, maximum and minimum keratometry (K max and K min) readings, corneal thickness at the thinnest point (CTTP), endothelial cell density (ECD), and intraocular pressure (IOP) were assessed before I-CXL, at 1, 3, 6, and 12 months postoperatively...
November 2017: Medicine (Baltimore)
keyword
keyword
28017
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"