keyword
MENU ▼
Read by QxMD icon Read
search

hyperopic

keyword
https://www.readbyqxmd.com/read/28423020/refractive-error-change-and-vision-improvement-in-moderate-to-severe-hyperopic-amblyopia-after-spectacle-correction-restarting-the-emmetropization-process
#1
Ji Woong Chang
PURPOSE: The aims of the study were to develop guidelines for prescribing spectacles for patients with moderate to severe hyperopic amblyopia and to demonstrate how emmetropization progresses. METHODS: Children with hyperopic amblyopia who had a spherical equivalent of ≥ +4.0 diopters (D) or more were included, while those who had astigmatism of > 2.0 D or anisometropia of > 2.0 D were excluded. The patients were divided into a full correction group and an under-correction group according to the amount of hyperopia correction applied...
2017: PloS One
https://www.readbyqxmd.com/read/28412798/-intraocular-lens-power-calculation-for-high-myopic-eyes-with-cataract-comparison-of-three-formulas
#2
X J Zhu, W W He, Y Du, D J Qian, J H Dai, Y Lu
Objective: To compare the accuracy of three different formulas for intraocular lens power calculation in high myopic eyes with cataract and analyze their influencial factors. Methods: One hundred and three high myopic patients of cataract (103 eyes), with average age of 60.2±8.8 years old (39.0-77.0), including 45 male and 54 female and with axial length ≥ 26 mm were enrolled in this retrospective case-series study. All of them underwent routine ocular examination and IOLMastermeasurement preoperatively and then underwent phacoemulsification through temporal clear-corneal incision with implantation of HumanOptic posterior chamber Intraocular lens (IOL)...
April 11, 2017: [Zhonghua Yan Ke za Zhi] Chinese Journal of Ophthalmology
https://www.readbyqxmd.com/read/28405481/factors-affecting-contrast-sensitivity-in-healthy-individuals-a-pilot-study
#3
Arzu Seyhan Karatepe, Süheyla Köse, Sait Eğrilmez
OBJECTIVES: To determine the demographic and ocular features affecting contrast sensitivity levels in healthy individuals. MATERIALS AND METHODS: Seventy-four eyes of 37 subjects (7-65 years old) with refractive errors less than 1.0 diopter, no history of ocular surgery, and 20/20 visual acuity were included in the study. The participants were divided by age into three groups: group 1, 7-19 years, n=11; group 2, 20-49 years, n=15; and group 3, 50-65 years, n=11...
April 2017: Turkish Journal of Ophthalmology
https://www.readbyqxmd.com/read/28404522/observations-on-the-relationship-between-anisometropia-amblyopia-and-strabismus
#4
Earl L Smith, Li-Fang Hung, Baskar Arumugam, Janice M Wensveen, Yuzo M Chino, Ronald S Harwerth
We investigated the potential causal relationships between anisometropia, amblyopia and strabismus, specifically to determine whether either amblyopia or strabismus interfered with emmetropization. We analyzed data from non-human primates that were relevant to the co-existence of anisometropia, amblyopia and strabismus in children. We relied on interocular comparisons of spatial vision and refractive development in animals reared with 1) monocular form deprivation; 2) anisometropia optically imposed by either contact lenses or spectacle lenses; 3) organic amblyopia produced by laser ablation of the fovea; and 4) strabismus that was either optically imposed with prisms or produced by either surgical or pharmacological manipulation of the extraocular muscles...
April 18, 2017: Vision Research
https://www.readbyqxmd.com/read/28378149/the-correlation-of-hyperopia-and-choroidal-thickness-vessel-diameter-and-area
#5
Ahmet Kaderli, Mehmet Akif Acar, Nurten Ünlü, Güner Özkan Üney, Firdevs Örnek
OBJECTIVE: This study evaluates the effect of axial length and hyperopia error on macular choroidal thickness as well as choroidal vessel lumen diameter and area with EDI-OCT in short eyes. MATERIALS AND METHODS: The study includes 64 volunteers who are over 18 years of ages and applied to Eye Clinic of Ankara Training and Research Hospital. Choroidal thickness, choroidal vessel lumen diameter and areas were measured with Spectralis(®) OCT device using EDI technique...
April 4, 2017: International Ophthalmology
https://www.readbyqxmd.com/read/28371095/performance-of-dental-students-in-shade-matching-impact-of-training
#6
Adriana P Buhrer Samra, Marcella G Moro, Rui F Mazur, Sergio Vieira, Evelise M De Souza, Andrea Freire, Rodrigo N Rached
OBJECTIVE: The present study evaluated the effect of training on dental students' ability for matching two different shade guides. MATERIALS AND METHODS: The study was conducted in 2012. The participants were 88 male and female undergraduate dental students from Brazil and Portugal, with or without previous color education and vision refractive errors (response rate of 73.33%). They were asked to match a pair set of the shade guides Vita Classical (VC) and Vitapan 3D Master (3DM), with a 20-minutes' rest between each match...
April 2017: Journal of Esthetic and Restorative Dentistry
https://www.readbyqxmd.com/read/28370389/is-an-objective-refraction-optimised-using-the-visual-strehl-ratio-better-than-a-subjective-refraction
#7
Gareth D Hastings, Jason D Marsack, Lan Chi Nguyen, Han Cheng, Raymond A Applegate
PURPOSE: To prospectively examine whether using the visual image quality metric, visual Strehl (VSX), to optimise objective refraction from wavefront error measurements can provide equivalent or better visual performance than subjective refraction and which refraction is preferred in free viewing. METHODS: Subjective refractions and wavefront aberrations were measured on 40 visually-normal eyes of 20 subjects, through natural and dilated pupils. For each eye a sphere, cylinder, and axis prescription was also objectively determined that optimised visual image quality (VSX) for the measured wavefront error...
March 30, 2017: Ophthalmic & Physiological Optics: the Journal of the British College of Ophthalmic Opticians (Optometrists)
https://www.readbyqxmd.com/read/28366365/intraocular-lens-power-calculations-in-eyes-with-previous-hyperopic-laser-in-situ-keratomileusis-or-photorefractive-keratectomy
#8
Eric B Hamill, Li Wang, Hayley K Chopra, Warren Hill, Douglas D Koch
PURPOSE: To evaluate the accuracy of 7 intraocular lens (IOL) calculation formulas in patients with previous hyperopic laser in situ keratomileusis (LASIK) or excimer laser photorefractive keratectomy (PRK). DESIGN: Retrospective case series. SETTING: Cullen Eye Institute, Baylor College of Medicine, Houston, Texas, and private practice, Mesa, Arizona, USA. METHODS: The 7 formulas evaluated were the adjusted Atlas 0-3, Masket, Modified Masket, Haigis-L, Shammas-PL, Barrett True-K, and Barrett True-K No-History...
February 2017: Journal of Cataract and Refractive Surgery
https://www.readbyqxmd.com/read/28362900/the-davida-teller-award-lecture-2016-visual-brain-development-a-review-of-dorsal-stream-vulnerability-motion-mathematics-amblyopia-actions-and-attention
#9
Janette Atkinson
Research in the Visual Development Unit on "dorsal stream vulnerability' (DSV) arose from research in two somewhat different areas. In the first, using cortical milestones for local and global processing from our neurobiological model, we identified cerebral visual impairment in infants in the first year of life. In the second, using photo/videorefraction in population refractive screening programs, we showed that infant spectacle wear could reduce the incidence of strabismus and amblyopia, but many preschool children, who had been significantly hyperopic earlier, showed visuo-motor and attentional deficits...
March 1, 2017: Journal of Vision
https://www.readbyqxmd.com/read/28360122/increased-cerebral-blood-volume-pulsatility-during-head-down-tilt-with-elevated-carbon-dioxide-the-spacecot-study
#10
Gary E Strangman, Quan Zhang, Karina Marshall-Goebel, Edwin Mulder, Brian Stevens, Jonathan B Clark, Eric M Bershad
Astronauts aboard the International Space Station (ISS) have exhibited hyperopic shifts, posterior eye globe flattening, dilated optic nerve sheaths, and even optic disc swelling from spaceflight. Elevated intracranial pressure (ICP) consequent to cephalad fluid shifts is commonly hypothesized as contributing to these ocular changes. Head-down tilt (HDT) is frequently utilized as an Earth-based analog to study similar fluid shifts. Sealed environments like the ISS also exhibit elevated carbon dioxide (CO2), a potent arteriolar vasodilator that could further affect cerebral blood volume and flow, intracranial compliance, and ICP...
March 30, 2017: Journal of Applied Physiology
https://www.readbyqxmd.com/read/28357886/clinical-appraisal-and-retinal-imaging-in-posterior-microphthalmos
#11
Kemal Tekin, Mehmet Yasin Teke, Mehmet Citirik
PURPOSE: To report a critical case series of five patients with posterior microphthalmos and the review of their clinical findings with the analyses of retinal imaging. METHOD: Case series. Complete ophthalmological examinations including optical coherence tomography (OCT) were evaluated. RESULTS: All patients had decreased visual acuity with high hyperopic refraction. Dilated fundus examination demonstrated that elevated papillomacular retinal folds with anterior segment were unremarkable...
February 15, 2017: Seminars in Ophthalmology
https://www.readbyqxmd.com/read/28337056/normative-values-and-contralateral-comparison-of-anterior-chamber-parameters-measured-by-pentacam-and-its-correlation-with-corneal-biomechanical-factors
#12
Mohammad Reza Sedaghat, Vahid Mohammad Zadeh, Kaveh Fadakar, Sakineh Kadivar, Mojtaba Abrishami
PURPOSE: To evaluate the normative values of anterior chamber parameters measured by Pentacam and corneal hysteresis (CH) and corneal resistance factor (CRF) measured by Ocular Response Analyzer (ORA) and their relationship. METHODS: In an observational cross-sectional study, patients aged 18-35 years were included. Exclusion criteria were history of any intraocular or corneal disease, anomaly or surgery; hyperopic spherical refraction more than +3, and myopic spherical refraction less than -5...
January 2017: Saudi Journal of Ophthalmology: Official Journal of the Saudi Ophthalmological Society
https://www.readbyqxmd.com/read/28331285/refraction-outcomes-after-suction-loss-during-small-incision-lenticule-extraction-smile
#13
Amr A Gab-Alla
PURPOSE: To evaluate refractive outcomes of two management approaches after suction loss during the small-incision lenticule extraction (SMILE) technique. PATIENTS AND METHODS: This retrospective and comparative study was conducted at the El-Gowhara Private Eye Center. It included 26 consecutive eyes of patients who experienced suction loss during the SMILE technique. Patients were divided into two groups by the technical difficulties in redocking: in group A (12 eyes) suction loss occurred after the posterior lenticular cut and the creation of side-cuts, then suction was reapplied, and the procedure was completed; in group B (14 eyes) suction loss occurred after the posterior lenticular cut and the creation of side-cuts, then the procedure was postponed for 24 hours and completed with the same parameters...
2017: Clinical Ophthalmology
https://www.readbyqxmd.com/read/28319935/correction-choroidal-thickness-in-children-with-hyperopic-anisometropic-amblyopia
#14
(no author information available yet)
No abstract text is available yet for this article.
July 2016: British Journal of Ophthalmology
https://www.readbyqxmd.com/read/28291554/implantation-of-posterior-chamber-phakic-intraocular-lens-for-myopia-and-hyperopia%C3%A2-%C3%A2-long-term-clinical-outcomes
#15
H Kocová, E Vlková, L Michalcová, O Motyka
PURPOSE: To evaluate long-term refractive outcomes of implantable collamer lens (ICL) implantation and late postoperative complications. METHODS: We assessed outcomes of patients who underwent ICL implantation (type ICM V4 for myopia, ICH V3 for hyperopia, TICM V4 for astigmatism) in our department between 1998 and 2013. It comprised 62 eyes (40 myopic and 22 hyperopic). The average follow-up period was 10.5 years. We evaluated: uncorrected and best-corrected visual acuity (UCVA and BCVA), spherical equivalent (SE), ICL vault, endothelial cell density and late postoperative complications...
March 2017: Journal Français D'ophtalmologie
https://www.readbyqxmd.com/read/28289879/-predictability-of-residual-astigmatism-after-implantation-of-posterior-chamber-toric-lenses
#16
D Mies, T Klink, W Eisenbarth, L M Meyer
BACKGROUND: The objective of the study was to examine the predictability of residual astigmatism after cataract surgery and implantation of the posterior chamber aspheric toric lens TECNIS® ZCT, Abott Medical Optic (Ettlingen, Deutschland). MATERIAL AND METHODS: The retrospective study included a total of 88 patient eyes undergoing a cataract operation with a toric lens implantation between March 2014 and October 2015. The inclusion criteria were a regular astigmatism of at least 0...
March 13, 2017: Der Ophthalmologe: Zeitschrift der Deutschen Ophthalmologischen Gesellschaft
https://www.readbyqxmd.com/read/28288603/a-cute-angle-closure-attack-after-an-intravitreal-bevacizumab-injection-for-branch-retinal-vein-occlusion-a-case-report
#17
Seongyong Jeong, Min Sagong, Woohyok Chang
BACKGROUND: Intravitreal injection is widely used to treat retinal vein occlusion, and acute angle closure (AAC) is an exceptional complication of intravitreal injection. The authors report a case of AAC that occurred immediately after administering intravitreal bevacizumab to treat branch retinal vein occlusion (BRVO). CASE PRESENTATION: A 65-year-old woman was referred to the retina clinic of a tertiary referral center for the treatment of macular edema secondary to BRVO...
March 14, 2017: BMC Ophthalmology
https://www.readbyqxmd.com/read/28283925/prevention-of-myopia-by-partial-correction-of-hyperopia-a-twins-study
#18
Antonio Medina
PURPOSE: To confirm the prediction of emmetropization feedback theory that myopia can be prevented by correcting the hyperopia of a child at risk of becoming myopic. METHODS: We conducted such myopia prevention treatment with twins at risk. Their hyperopia was partially corrected by one half at age 7 and in subsequent years until age 16. RESULTS: Hyperopia progressively decreased in all eyes as expected. None of the twins developed myopia...
March 10, 2017: International Ophthalmology
https://www.readbyqxmd.com/read/28273153/prevalence-and-association-of-refractive-anisometropia-with-near-work-habits-among-young-schoolchildren-the-evidence-from-a-population-based-study
#19
Chia-Wei Lee, Shao-You Fang, Der-Chong Tsai, Nicole Huang, Chih-Chien Hsu, Shing-Yi Chen, Allen Wen-Hsiang Chiu, Catherine Jui-Ling Liu
BACKGROUND: Lifestyle behaviour may play a role in refractive error among children, but the association between near work habits and refractive anisometropia remains unclear. METHODS: We estimated the prevalence of refractive anisometropia and examined its association with near work activities among 23,114 children in the Myopia Investigation Study in Taipei who were grade 2 elementary school students at baseline in 2013 and 2014. Baseline data on demographics, medical history, parental history and near work habits were collected by parent-administered questionnaire survey...
2017: PloS One
https://www.readbyqxmd.com/read/28264128/small-incision-lenticule-extraction-smile-for-hyperopia-optical-zone-centration
#20
Dan Z Reinstein, Kishore R Pradhan, Glenn I Carp, Timothy J Archer, Marine Gobbe, Walter Sekundo, Raynan Khan, Kim Citron, Purushottam Dhungana
PURPOSE: To evaluate optical zone centration of hyperopic small incision lenticule extraction (SMILE). METHODS: This prospective study of 60 consecutive hyperopic SMILE procedures used the VisuMax femtosecond laser and matched LASIK procedures with the VisuMax and MEL 80 excimer lasers (Carl Zeiss Meditec AG, Jena, Germany). Inclusion criteria were maximum attempted hyperopic meridian of between +1.00 and +7.00 diopters (D) and astigmatism up to 6.00 D. For SMILE, the optical zone was between 6...
March 1, 2017: Journal of Refractive Surgery
keyword
keyword
101811
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"