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hassan hashemi

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https://www.readbyqxmd.com/read/27921328/comprehensive-profile-of-bilateral-astigmatism-rule-similarity-and-symmetry-patterns-of-the-axes-in-the-fellow-eyes
#1
Amir Asharlous, Mehdi Khabazkhoob, Abbasali Yekta, Hassan Hashemi
PURPOSE: To study rule similarity (isorule or anisorule) and symmetry patterns of axes (direct and mirror) in bilateral astigmatism. METHODS: Six years of data were collected from four ophthalmology clinics in Tehran. After applying the exclusion criteria (having eye disease or history of ocular surgery), final analyses were performed on data of 160 608 cases whose mean age was 39.2 ± 15.4 years (10-80 years) and 53.7% female. All subjects had autorefraction, retinoscopy, and subjective refraction data...
December 5, 2016: Ophthalmic & Physiological Optics: the Journal of the British College of Ophthalmic Opticians (Optometrists)
https://www.readbyqxmd.com/read/27830203/corneal-aberration-changes-after-rigid-gas-permeable-contact-lens-wear-in-keratokonic-patients
#2
Fereshteh Shokrollahzadeh, Hassan Hashemi, Ebrahim Jafarzadehpur, Ali Mirzajani, Mehdi Khabazkhoob, Abbasali Yekta, Soheila Asgari
PURPOSE: To determine the short-term effect of rigid gas permeable (RGP) contact lenses on corneal aberrations in keratoconic patients. METHOD: Sixteen keratoconic eyes with no history of RGP lens wear were included. They all had corneal aberrometry using Pentacam, and different aberration indices of the anterior and posterior surfaces of the cornea were measured before and 3 months after fitting RGP lenses. The effect of baseline parameters on these changes was tested in univariate and multiple models...
December 2016: Journal of Current Ophthalmology
https://www.readbyqxmd.com/read/27830202/comparison-of-the-visual-acuity-after-photorefractive-keratectomy-using-early-treatment-diabetic-retinopathy-study-chart-and-e-chart
#3
Saeedeh Ghorbanhosseini, Hassan Hashemi, Ebrahim Jafarzadehpur, Abbasali Yekta, Mehdi Khabazkhoob
PURPOSE: To compare the visual responses of post refractive surgery's patients using Early Treatment Diabetic Retinopathy Study Chart (ETDRS) and E-chart with and without color filters. METHODS: The uncorrected Logarithm of the Minimum Angle of Resolution Visual Acuity (LogMAR VA) of 70 patients with a mean age of 26.2 ± 3.76 years (from 19 to 34 years) who had undergone Photorefractive Keratectomy (PRK) (the range of post operation refractive error: ±0.5 D) was measured under the light conditions of with and without asymmetrical glare by using red, green, and yellow filters and ETDRS chart and E-chart...
December 2016: Journal of Current Ophthalmology
https://www.readbyqxmd.com/read/27830198/trachoma-past-present-and-future
#4
REVIEW
Mehrdad Mohammadpour, Mojtaba Abrishami, Ahmad Masoumi, Hassan Hashemi
PURPOSE: To review the background, epidemiology and current management of trachoma in endemic areas and worldwide. METHODS: Review of literature. RESULTS: Trachoma is one of the leading causes of preventable blindness in developing countries. It was reported as one of the seven most neglected tropical diseases that can be prevented via drug administration. Its infliction is primarily aimed at those living in areas deprived of clean water and proper sanitation...
December 2016: Journal of Current Ophthalmology
https://www.readbyqxmd.com/read/27802816/retraction-note-histopathological-and-clinical-evaluation-of-kombucha-tea-and-nitrofurazone-on-cutaneous-full-thickness-wounds-healing-in-rats-an-experimental-study
#5
Fardin Barati, Javad Javanbakht, Farajollah Adib-Hashemi, Ehsan Hosseini, Reyhaneh Safaeie, Mojtaba Rajabian, Mostafa Razmjoo, Reza Sedaghat, Mehdi Aghamohammad Hassan
No abstract text is available yet for this article.
November 2, 2016: Diagnostic Pathology
https://www.readbyqxmd.com/read/27749472/higher-order-aberrations-after-cyclopentolate-tropicamide-and-artificial-tear-drops-application-in-normal-eyes
#6
Negin Amirshekarizadeh, Hassan Hashemi, Ebrahim Jafarzadehpur, Ali Mirzajani, Abbasali Yekta, Mehdi Khabazkhoob
PURPOSE: To determine the effect of cyclopentolate, tropicamide, and artificial tear drops on higher-order aberrations (HOAs) in normal eyes with OPD-Scan III (Nidek Inc., Tokyo, Japan). METHODS: In this study, 189 eyes of individuals aged 20 to 35 years were selected as samples. Inclusion criteria were a corrected visual acuity of 20/20 or better, a minimum size of about 5 mm for the pupil in the dark, hyperopia and myopia less than 5 D, and astigmatism less than 2 D...
September 30, 2016: Eye & Contact Lens
https://www.readbyqxmd.com/read/27727492/retinal-nerve-fibre-layer-thickness-in-a-general-population-in-iran
#7
Hassan Hashemi, Mehdi Khabazkhoob, Payam Nabovati, Abbasali Yekta, Mohammad Hassan Emamian, Akbar Fotouhi
BACKGROUND: To determine retinal nerve fibre layer (RNFL) thickness distribution and its related factors in a general population of 45 to 69 year olds in Iran. DESIGN: Population-based cross-sectional study. PARTICIPANTS: Of the 5190 participants of phase one of Shahroud Eye Cohort Study, 4737 participated in Phase two (participation rate = 91.3%). METHODS: All study participants underwent visual acuity measurement, refraction tests, slit lamp examination and ophthalmoscopic fundus exam...
October 11, 2016: Clinical & Experimental Ophthalmology
https://www.readbyqxmd.com/read/27699605/femtosecond-laser-assisted-lasik-versus-prk-for-high-myopia-comparison-of-18-month-visual-acuity-and-quality
#8
Hassan Hashemi, Reza Ghaffari, Mohammad Miraftab, Soheila Asgari
PURPOSE: To compare 18-month outcomes between femtosecond laser-assisted LASIK (femto-LASIK) and photorefractive keratectomy with mitomycin-C (PRK-MMC) for myopia of more than 7.0 D in terms of visual acuity and quality. METHODS: In this comparative nonrandomized clinical trial, 60 eyes from 30 patients (30 eyes in each group) were enrolled. The two procedures were compared in terms of 18-month changes in uncorrected distance visual acuity (UDVA), corrected distance visual acuity (CDVA), manifest refraction spherical equivalent, ocular and corneal higher order aberrations (HOAs), and contrast sensitivity (CS)...
October 3, 2016: International Ophthalmology
https://www.readbyqxmd.com/read/27588277/distribution-of-intraocular-pressure-and-its-determinants-in-an-iranian-adult-population
#9
Hassan Hashemi, Mehdi Khabazkhoob, Mohammad Hassan Emamian, Mohammad Shariati, Abbasali Yekta, Akbar Fotouhi
AIM: To determine the distribution of intraocular pressure (IOP) and its determinants in an Iranian population. METHODS: In a cross-sectional survey, random cluster sampling was conducted from the 40-64 years old population of Shahroud, in the north of Iran. All participants had optometry and ophthalmic exams. IOP was determined using the Goldmann tonometry method and biometric components were measured. RESULTS: Of the 6311 people selected for the study, 5190 (82...
2016: International Journal of Ophthalmology
https://www.readbyqxmd.com/read/27579459/the-prevalence-of-ptosis-in-an-iranian-adult-population
#10
Hassan Hashemi, Mehdi Khabazkhoob, Mohammad Hassan Emamian, Abbasali Yekta, Ali Jafari, Payam Nabovati, Akbar Fotouhi
PURPOSE: To determine upper eyelid ptosis prevalence and some related factors in 44- to 69-year-olds of Shahroud in the north of Iran. METHODS: In 2009, using multi-stage cluster sampling, 300 clusters of 40-64-year-olds were selected in Shahroud city, and all 5190 participants were invited to be re-examined in 5 years (2014). The current report is the second phase of the study in which 4737 (91.3%) people participated and underwent vision tests, slit lamp examination, biometry, and ophthalmoscopy in 2014...
September 2016: Journal of Current Ophthalmology
https://www.readbyqxmd.com/read/27579458/estimation-of-the-hybrid-lens-parameters-through-rigid-gas-permeable-lens%C3%A2-fitting
#11
Mohammadali Hasani, Hassan Hashemi, Ebrahim Jafarzadehpur, Abbas Ali Yekta, Nooshin Dadbin, Mehdi Khabazkhoob
PURPOSE: To estimate the fitting parameters of the hybrid contact lens in patients with corneal ectasia using the rigid gas permeable (RGP) lens. METHODS: Thirty-four eyes with corneal ectasia were evaluated in this study. The patients were examined once with the RGP lens and once with the hybrid contact lens. The relationship between the base curvature of the RGP and the vault of the hybrid lens and the correlation between their powers were analyzed. RESULTS: We found a linear relationship between the base curvature of the RGP lens and the vault of the hybrid lens (P < 0...
September 2016: Journal of Current Ophthalmology
https://www.readbyqxmd.com/read/27579457/does-astigmatism-alter-with-cycloplegia
#12
Amir Asharlous, Hassan Hashemi, Ebrahim Jafarzadehpur, Ali Mirzajani, Abbasali Yekta, Payam Nabovati, Mehdi Khabazkhoob
PURPOSE: To determine the effect of the cyclopentolate 1% on the cylindrical and spherical components of the refraction. METHODS: Three hundred seventy-five eyes of 195 subjects, including 74 males and 121 females, aged from 3 to 59 years were refracted before and 30 min after cyclopentolate 1% eye drop instillation. To compare cylindrical data, power vector analysis (J0 and J45 cross cylinder) was applied. RESULTS: A statistically significant difference between the J0 values of the noncycloplegic and cycloplegic refraction was revealed (P = 0...
September 2016: Journal of Current Ophthalmology
https://www.readbyqxmd.com/read/27579454/correlation-of-higher-order-aberrations-and-components-of-astigmatism-in-myopic-refractive-surgery-candidates
#13
Mehrdad Mohammadpour, Zahra Heidari, Hossein Mohammad-Rabei, Ebrahim Jafarzadehpur, Mahmoud Jabbarvand, Hassan Hashemi, Mehdi Khabazkhoob
PURPOSE: To evaluate the correlation between refractive, corneal, and residual astigmatism and higher order aberrations (HOA) in refractive surgery candidates. METHODS: Three hundred and seventy-five eyes of 188 patients aged 28.2 ± 6.24 years with a predominance of females (62.7%) were enrolled in this study. Refraction, topography (Orbscan IIz, Bausch & Lomb, Rochester, NY, USA), and aberrometry (Zywave, Bausch & Lomb, Rochester, NY, USA) were performed to determine refractive and corneal astigmatism and HOA for all participants...
September 2016: Journal of Current Ophthalmology
https://www.readbyqxmd.com/read/27572485/astigmatism-in-underserved-rural-areas-a-population-based-study
#14
Hassan Hashemi, Payam Nabovati, Azam Malekifar, Abbasali Yekta, Hadi Ostadimoghaddam, Ebrahim Jafarzadehpur, Mehdi Khabazkhoob
PURPOSE: Studying the prevalence of astigmatism and its related factors in underprivileged rural areas in Iran. METHODS: Using random cluster sampling, two rural areas in the north and southwest of Iran were randomly selected, and 3851 persons over 1 year of age were invited to the study. In addition to recording demographics, retinoscopic refraction was conducted using baseline auto-refraction results. The prevalence of astigmatism was determined based on cylinder error cut-off points of 0...
August 29, 2016: Ophthalmic & Physiological Optics: the Journal of the British College of Ophthalmic Opticians (Optometrists)
https://www.readbyqxmd.com/read/27549747/amplitude-of-accommodation-in-an-11-to-17-year-old-iranian-population
#15
Hassan Hashemi, Payam Nabovati, Abbas Ali Yekta, Hadi Ostadimoghaddam, Samira Forouzesh, Negareh Yazdani, Mehdi Khabazkhoob
PURPOSE: The aim was to determine normal values of accommodative amplitude (AA) during adolescence in Iran. METHODS: In this cross-sectional study, sampling was done from high school students in Kermanshah in 2015 through a multi-stage cluster sampling method and selected students were invited to participate in the study. Examinations were performed on-site at each sampled high school. All students had visual acuity and refractive examination followed by measurement of AA...
August 22, 2016: Clinical & Experimental Optometry: Journal of the Australian Optometrical Association
https://www.readbyqxmd.com/read/27485705/strabismus-and-near-point-of-convergence-and-amblyopia-in-4-6-year-old-children
#16
AbbasAli Yekta, Hassan Hashemi, Hadi Ostadimoghaddam, Batool Haghighi, Hava Shafiee, Shiva Mehravaran, Payam Nabovati, Amir Asharlous, Mehdi Khabazkhoob
PURPOSE: To determine the prevalence of strabismus and amblyopia, and the distribution of the near point of convergence (NPC), in a population of children aged 4 to 6 years. METHODS: In this cross-sectional study, preschoolers in Mashhad were sampled using a random multistage cluster sampling approach. Examinations were done after obtaining parental consent. All participants had measurements of uncorrected visual acuity, corrected visual acuity, and non-cycloplegic refraction, and they had near and far cover tests to determine tropia and phoria...
September 2016: Strabismus
https://www.readbyqxmd.com/read/27476052/high-incidence-of-diabetes-mellitus-among-a-middle-aged-population-in-iran-a-longitudinal-study
#17
Hossein Ebrahimi, Mohammad Hassan Emamian, Hassan Hashemi, Akbar Fotouhi
OBJECTIVES: There are few data concerning the incidence rates of diabetes in Iran. This study aimed to determine the incidence of diabetes and its risk factors in a middle-aged population in Iran. METHODS: All of the people who participated in the first phase of the Shahroud eye cohort study were invited to the study in 2014; after signing informed consent forms, a total of 4737 people 45 to 69 years of age were enrolled in the second phase of the study (participation rate: 91...
December 2016: Canadian Journal of Diabetes
https://www.readbyqxmd.com/read/27415581/floppy-eyelid-syndrome-and-its-determinants-in-iranian-adults-a-population-based-study
#18
Hassan Hashemi, Hadith Rastad, Mohammad Hassan Emamian, Akbar Fotouhi
OBJECTIVES: To estimate the prevalence of floppy eyelid syndrome (FES) and to determine the associated factors in a representative sample of Iranian adult population aged 45 to 69 years. METHODS: The data were according to the second phase of Shahroud Eye Cohort Study performed in 2014 with 4,737 participants aged 45 to 69 years. Diagnosis of FES was made based on the clinical judgment of the ophthalmologist during ocular examinations. The percentage and confidence intervals (CIs) of the prevalence of FES were reported, and the associated factors were analyzed using simple and multiple logistic regression models...
July 13, 2016: Eye & Contact Lens
https://www.readbyqxmd.com/read/27413494/correlations-between-histopathologic-changes-and-clinical-features-in-pterygia
#19
Hamid Safi, Ahmad Kheirkhah, Mirgholamreza Mahbod, Saber Molaei, Hassan Hashemi, Mahmoud Jabbarvand
PURPOSE: To investigate the correlations between clinical findings and histopathologic changes in eyes with pterygium. METHODS: This prospective study included 70 eyes with primary pterygia undergoing surgical excision. Prior to surgery, clinical features of the pterygia including extension over the cornea, redness, fleshiness (based on obscuration of the underlying episcleral vessels), and obliteration of the plica semilunaris were determined. Postoperatively, pterygium specimens were examined by hematoxylin-eosin and trichrome staining to evaluate histopathologic characteristics including vascular density, leukocytic infiltration, stromal elastosis, stromal fibrosis and subepithelial fibrosis...
April 2016: Journal of Ophthalmic & Vision Research
https://www.readbyqxmd.com/read/27413491/efficacy-of-wavefront-guided-photorefractive-keratectomy-with-iris-registration-for-management-of-moderate-to-high-astigmatism-by-advanced-personalized-treatment-nomogram
#20
Mehrdad Mohammadpour, Hassan Hashemi, Mahmoud Jabbarvand, Kamran Rahmatnejad, Fatemeh Alsadat Sabet
PURPOSE: To evaluate the efficacy of photorefractive keratectomy (PRK) using the advanced personalized treatment (APT) nomogram for correction of moderate to high astigmatism. METHODS: This prospective interventional case series included 60 consecutive eyes of 30 patients undergoing wavefront-guided PRK (Zyoptix 217 Z100 excimer laser, Bausch & Lomb, Munich, Germany) using the APT nomogram and iris registration for myopic astigmatism. Mitomycin-C was applied intraoperatively in all eyes...
April 2016: Journal of Ophthalmic & Vision Research
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