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Détail de l'auteur
Auteur Mehdi Khabazkhoob
Documents disponibles écrits par cet auteur
Ajouter le résultat dans votre panier Affiner la rechercheComparison of Corneal Higher-order Aberrations between Miniscleral and Hybrid Lenses in Keratoconus / Mehrdad Assadpour in OVS : Optometry & Vision Science, vol. 97, 09 (Septembre 2020)
[article]
in OVS : Optometry & Vision Science > vol. 97, 09 (Septembre 2020)
Titre : Comparison of Corneal Higher-order Aberrations between Miniscleral and Hybrid Lenses in Keratoconus Type de document : article de périodique Auteurs : Mehrdad Assadpour ; Payam Nabovati ; Hassan Hashemi ; Shokoofeh Rafati ; Abbasali Yekta ; Ebrahim Jafarzadehpur ; Mehdi Khabazkhoob Année de publication : 2020 Langues : Français (fre) Descripteurs (mots clés) : [Thésaurus Mesh]Étude comparative
[Thésaurus Mesh]Kératocône
[Thésaurus HELB]:Optique:lentilles scléralesMots-clés : Lentilles mini-sclérales lentille Hybride Résumé : Comparison of Corneal Higher-order Aberrations between Miniscleral and Hybrid Lenses in Keratoconus SIGNIFICANCE: Fitting specialty contact lenses (hybrid and miniscleral) can be a useful option in keratoconus patients to decrease higher-order aberrations (HOAs) and increase the quality of vision. PURPOSE: The aim of the present study was to compare corneal HOAs between miniscleral and hybrid lenses in keratoconus patients. METHODS: The target population of this study was 37 patients with bilateral keratoconus aged 20 to 35 years who were referred to a specialized contact lens clinic by a corneal specialist. Pre-fitting examinations included objective and subjective refraction, measurement of uncorrected and best spectacle-corrected visual acuity, and measurement of corneal HOAs. Lens fitting was performed in the next step. Finally, post-fitting measurements including contact lens–corrected visual acuity and corneal HOAs were performed. RESULTS: The root mean square of the total HOAs significantly decreased after fitting both miniscleral and hybrid lens designs. There was a significant change in the third-order vertical coma and spherical aberration after fitting the miniscleral lens. In the hybrid lens group, a significant change was found only in vertical coma after fitting. There was no significant difference in the post-fitting HOA change between the two groups. CONCLUSIONS: The results of this study showed the effectiveness of both miniscleral and hybrid lenses in decreasing HOAs in keratoconus patients. No significant difference was observed between these two lenses in this regard. Permalink : https://bibliotheque.helb-prigogine.be/opac_css/index.php?lvl=notice_display&id= [article]Exemplaires
Cote Support Localisation Section Disponibilité aucun exemplaire Convergence Insufficiency in the Geriatric Population / Hassan Hashemi in OVS : Optometry & Vision Science, vol. 98, 06 (Juin 2012)
[article]
in OVS : Optometry & Vision Science > vol. 98, 06 (Juin 2012)
Titre : Convergence Insufficiency in the Geriatric Population Type de document : article de périodique Auteurs : Hassan Hashemi ; Payam Nabovati ; Abbasali Yekta ; Mohamadreza Aghamirsalim ; Shokoofeh Rafati ; Hadi Ostadimoghaddam ; Hassan Razmjoo ; Mehdi Khabazkhoob Année de publication : 2021 Langues : Français (fre) Descripteurs (mots clés) : [Thésaurus Mesh]Convergence oculaire
[Thésaurus Mesh]Diagnostic
[Thésaurus Mesh]Prévalence
[Thésaurus Mesh]Sujet âgéMots-clés : Insuffisance de convergence Permalink : https://bibliotheque.helb-prigogine.be/opac_css/index.php?lvl=notice_display&id= [article]Exemplaires
Cote Support Localisation Section Disponibilité aucun exemplaire Effect of Vergence Facility Testing on Horizontal Fusional Reserves / Farshad Askarizadeh in OVS : Optometry & Vision Science, vol. 99, 01 (Janvier 2022)
[article]
in OVS : Optometry & Vision Science > vol. 99, 01 (Janvier 2022)
Titre : Effect of Vergence Facility Testing on Horizontal Fusional Reserves Type de document : article de périodique Auteurs : Farshad Askarizadeh ; Mohsen Heirani ; Masoud Khorrami-Nejad ; Mehdi Khabazkhoob ; Foroozan Narooie-Noori Année de publication : 2022 Langues : Français (fre) Descripteurs (mots clés) : [Thésaurus Mesh]Adaptation oculaire
[Thésaurus Mesh]Optométrie
[Thésaurus Mesh]Tests de vision
[Thésaurus HELB]:Optique:vergenceRésumé : SIGNIFICANCE
The effect of vergence adaptation on test sequences should be considered in clinical practice.
PURPOSE
This study aimed to compare the effect of vergence adaptation after different vergence facility (VF) testing methods on following horizontal fusional reserve measurement at near.
METHODS
This cross-sectional study was performed on 50 healthy subjects with a mean ± standard deviation age of 21.18 ± 1.41 years. The baseline horizontal fusional reserves were measured using base-in (BI) and base-out (BO) prisms (∆) at near. Then, VF was measured using 3∆BI/12∆BI flip prism at near, and then the measurement of fusional reserves was repeated. In the next step, fusional reserves were measured after VF testing using 8∆BI/8∆BO flip prism. The values of fusional reserves were compared with their baseline findings.
RESULTS
The results of negative fusional reserves after VF measurement using the 3∆BI/12∆BO prisms were significantly lower than the baseline values (blur [P = .03], break [P = .03], and recovery [P = .03]). There were no significant differences between the values of fusional reserves before and after VF testing using the 8∆BI/8∆BO prisms (P > .05). No correlation was observed between fusional reserves and VF responses (P > .05); however, the results revealed a positive correlation between the values of fusional reserves before and after VF testing using both methods (all P < .05). There was no significant difference in VF findings between the methods (P = .23).
CONCLUSIONS
The measurements of horizontal fusional reserves followed by VF testing were not affected except for the responses of negative fusional reserves, which decreased after VF determination using the 3∆BI/12∆BO method. Although the vergence adaptation does not seem clinically significant, it is recommended to evaluate horizontal fusional reserves before VF measurement or long-enough time after VF testing for the vergence system to return to its nonadapted state.Permalink : https://bibliotheque.helb-prigogine.be/opac_css/index.php?lvl=notice_display&id= [article]Exemplaires
Cote Support Localisation Section Disponibilité aucun exemplaire The Effect of Cyclopentolate on Ocular Biometric Components / Hassan Hashemi in OVS : Optometry & Vision Science, vol. 97, 06 (Juin 2020)
[article]
in OVS : Optometry & Vision Science > vol. 97, 06 (Juin 2020) . - p. 440-447
Titre : The Effect of Cyclopentolate on Ocular Biometric Components Type de document : article de périodique Auteurs : Hassan Hashemi ; Amir Asharlous ; Mehdi Khabazkhoob ; Rafael Iribarren ; Ahmad Khosravi ; Abbasali Yekta ; Mohammad Hassan Emamian ; Akbar Fotouhi Année de publication : 2020 Article en page(s) : p. 440-447 Langues : Français (fre) Descripteurs (mots clés) : [Thésaurus Mesh]Cyclopentolate
[Thésaurus Mesh]Enfant
[Thésaurus Mesh]Études transversales
[Thésaurus Mesh]Évaluation de médicament
[Thésaurus Mesh]Solutions ophtalmiques
[Thésaurus Mesh]Troubles de la réfraction oculaire
[Thésaurus HELB]:Optique:biometrie optiqueRésumé : SIGNIFICANCE: It is apparent that a variety of biometric changes are caused by different types of cycloplegic eye drops. However, these effects are inconsistent and have not been reported in different refractive groups. PURPOSE: The purpose of this study was to determine the effect of cyclopentolate 1% on ocular biometric components in different types of refractive errors in children. METHODS: This cross-sectional study was conducted on 226 eyes of 113 schoolchildren in Shahroud, northeast Iran, with a mean ± standard deviation age of 9.20 ± 1.65 years. All participants had noncycloplegic and cycloplegic objective refraction using an autorefractometer. Cycloplegia was induced using cyclopentolate 1% eye drops. Biometric measurements were made with Allegro Biograph (WaveLight AG, Erlangen, Germany) before and after administering cycloplegic drops. Mixed-effect model regression was used to analyze the data. RESULTS: After cycloplegia, the vitreous chamber depth (VCD) (−0.043; 95% confidence interval [CI], −0.067 to −0.019 mm), lens thickness (−0.146; 95% CI, −0.175 to −0.117 mm), axial length (−0.009; 95% CI, −0.012 to −0.006 mm), and lens power (−0.335; 95% CI, −0.463 to −0.208 D) decreased significantly, whereas the anterior chamber depth (ACD) (0.183; 95% CI, 0.164 to 0.202 mm), anterior segment length (0.036; 95% CI, 0.014 to 0.058) mm), lens central point (0.109; 95% CI, 0.094 to 0.124 mm), and pupil diameter (1.599; 95% CI, 1.482 to 1.716 mm) increased (P value for all tests, Permalink : https://bibliotheque.helb-prigogine.be/opac_css/index.php?lvl=notice_display&id= [article]Exemplaires
Cote Support Localisation Section Disponibilité aucun exemplaire