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Siamak Zarei-Ghanavati

Siamak Zarei-Ghanavati, Soheyla Jafarpour, Alireza Radyn-Majd, Hamed Hosseinikhah-Manshadi
PURPOSE: To evaluate and compare early postoperative pain after photorefractive keratectomy (PRK) and corneal crosslinking (CXL). SETTING: Khatam-al-Anbia Eye Hospital, Mashhad, Iran. DESIGN: Prospective case series. METHODS: The PRK group included patients with simple refractive errors whereas the CXL group included patients with clinical keratoconus. The groups were compared regarding the level of pain based on the visual analogue scale (VAS), verbal rating scale (VRS), and Wong-Baker FACES pain rating scale immediately after surgery, 6 hours postoperatively, and 1, 3, and 7 days postoperatively...
May 9, 2018: Journal of Cataract and Refractive Surgery
Tayyeba K Ali, Allister Gibbons, Cristián Cartes, Siamak Zarei-Ghanavati, Mohamed Gomaa, Ingrid Gonzalez, Astrid E Gonzalez, Hilal E Ozturk, Carolina Betancurt, Victor L Perez
PURPOSE: To describe the safety and efficacy of autologous serum tears (AST) in managing ocular surface disease resistant to conventional therapy in patients with systemic autoimmune disease(s). DESIGN: Retrospective, interventional case series. METHODS: Records of patients from 2009 to 2015 with systemic autoimmune disease treated with AST (20%-50%) for chronic surface disease were analyzed. Standardized measures of subjective dry eye symptoms, objective dry eye staining of the cornea, and slit-lamp findings including punctate epithelial erosion (PEE), filamentary keratopathy (FK), and corneal epithelial defects (KED) were compared during first and last visit...
May 2018: American Journal of Ophthalmology
Siamak Zarei-Ghanavati, Hamid Khakshour, Mohammadreza Vejdani, Haleh Ghooshkhanei, Amirhosein Vejdani
PURPOSE: To assess and compare preoperative refractive, aberrometric, topographic, and contrast sensitivity (CS) measurements with postoperative values after corneal collagen cross-linking (CXL) in patients with progressive keratoconus. METHODS: Twenty-two eyes of 11 patients with keratoconus were enrolled in this prospective study. Uncorrected distance visual acuity (UDVA), best spectacle corrected visual acuity (BSCVA), CS, and higher order aberrations (HOAs) were evaluated at baseline and 1, 3, 6, and 8 months after surgery...
July 2017: Journal of Ophthalmic & Vision Research
Daryoush Hamidi Alamdari, Mohamad-Reza Sedaghat, Reza Alizadeh, Siamak Zarei-Ghanavati, Hashem Naseri, Fatemeh Sharifi
PURPOSE: To compare the safety, operating time, postoperative ocular signs, symptoms, overall patient satisfaction, complications rate and recurrence rate of autologous fibrin glue (AFG) and nylon suturing (NS) for attaching conjunctival autografts in pterygium surgery. METHODS: A prospective, randomized, interventional study was performed among 120 patients (120 eyes) with primary pterygium. Superior conjunctival autograft was harvested and transferred on to bare sclera after pterygium excision...
June 17, 2017: International Ophthalmology
Hamid Gharaee, Siamak Zarei-Ghanavati, Reza Alizadeh, Mojtaba Abrishami
PURPOSE: To compare differences in the endothelial cells before and after photorefractive keratectomy (PRK) for myopia with refractive error graded mitomycin C (MMC) application. METHODS: In a prospective randomized clinical trial, forty-eight myopic patients referred to Khatam-al-Anbia Eye Hospital, Mashhad, Iran, for PRK. Patients were treated with PRK by a Bausch and Lomb Technolas 217z excimer laser (Bausch and Lomb, Rochester, NY). MMC was applied after PRK 5 s for each diopter of spherical equivalent myopic refractive error corrected...
June 13, 2017: International Ophthalmology
Zhale Rajavi, Sare Safi, Mohammad Ali Javadi, Mohammad Reza Jafarinasab, Sepehr Feizi, Mohammadreza Sedighi Moghadam, Khosrow Jadidi, Mahmoud Babaei, Armin Shirvani, Alireza Baradaran-Rafii, Hossein Mohammad-Rabei, Hossein Ziaei, Mohammad Ghassemi-Broumand, Siamak Delfaza Baher, Mostafa Naderi, Mahmoodreza Panahi-Bazaz, Siamak Zarei-Ghanavati, Shahriar Hanjani, Hassan Ghasemi, Ramin Salouti, Mojgan Pakbin, Bahareh Kheiri
PURPOSE: To develop clinical practice guidelines (CPGs) for prevention, diagnosis, treatment and follow-up of ocular injuries caused by exposure to mustard gas. METHODS: The clinical questions were designed by the guideline team. Websites and databases including National Guidelines Clearinghouse, National Institute for Clinical Excellence, Cochrane, and PubMed were searched to find related CPGs and explore possible answers to the clinical questions. Since there were no relevant CPGs in the literature, related articles in Persian and English languages were extracted...
January 2017: Journal of Ophthalmic & Vision Research
Amir Norouzpour, Siamak Zarei-Ghanavati
PURPOSE: To report hydrophilic acylic intraocular lens (IOL) opacification after Descemet Stripping Automated Endothelial Keratoplasty (DSAEK) in an eye with multiple prior intraocular surgeries and iatrogenic aniridia. CASE REPORT: A 34-year-old woman with history of penetrating keratoplasty (PKP) for advanced keratoconus and subsequent Urrets-Zavalia Syndrome (UZS) underwent phacoemulsification and hydrophilic acrylic IOL implantation for her cataract. In order to control post-PKP glaucoma, multiple glaucoma surgeries including two glaucoma drainage implants were performed...
April 2016: Journal of Ophthalmic & Vision Research
Siamak Zarei-Ghanavati, Hamid Gharaee, Alireza Eslampour, Asieh Ehsaei, Mojtaba Abrishami
PURPOSE: Stereopsis, as a part of visual function, is the ability of differentiating between the two eyes' views (binocular disparity), due to the eyes' different positions. The aim of this study was to compare stereoscopic vision before and after photorefractive keratectomy (PRK) in myopia. METHODS: In a prospective interventional case series study clinical trial, forty-eight myopic individuals (age range: 18-34 years) who had undergone PRK surgery by a Bausch & Lomb Technolas 217z excimer laser were included...
March 2016: Journal of Current Ophthalmology
Siamak Zarei-Ghanavati, Homa Bagherian
UNLABELLED: We describe a surgical technique for management of zonular instability and pupillary miosis using a pupil expansion device (Malyugin ring) in patients who need cataract surgery. In this technique, the pupil expansion device is first used in the usual fashion. After a capsulorhexis has been created, lateral scrolls of the pupil expansion device are released and repositioned to entrap both the anterior capsulorhexis and the pupil margin at the against-the-wound meridian (3 o'clock and 9 o'clock position) to fixate the unstable capsular bag to the iris...
September 2015: Journal of Cataract and Refractive Surgery
Siamak Zarei-Ghanavati, Hamid Gharaee, David Rex Hamilton, P James Sanchez, Mojtaba Abrishami
PURPOSE: To compare the refractive, visual, and aberrometric outcomes between wavefront-guided photorefractive keratectomy (PRK) and aspheric PRK in myopic patients. SETTING: Khatam-al-Anbia Eye Hospital, Mashhad, Iran. DESIGN: Prospective randomized clinical trial. METHODS: One eye of each patient was randomly assigned to excimer laser wavefront-guided PRK (Zyoptix) and the other eye to excimer laser aspheric PRK (Technolas 217z)...
July 2015: Journal of Cataract and Refractive Surgery
Siamak Zarei-Ghanavati, Fatemeh Irandoost
PURPOSE: To report a patient with refractory keratitis after a Boston type I keratoprosthesis treated with corneal collagen cross-linking (CXL). METHODS: Case report. RESULTS: A 29-year-old man with a history of chemical burn in the left eye underwent keratoprosthesis implantation. He developed infectious keratitis 4 months after surgery, which did not respond to topical antibiotics. The patient underwent corneal CXL with a shield covering the keratoprosthesis optic...
September 2015: Cornea
Siamak Zarei-Ghanavati, Carolina Betancurt, Alma Michelle Mas, Jianhua Wang, Victor L Perez
PURPOSE: To evaluate the anterior keratoprosthesis-cornea interface in eyes with Boston type I keratoprosthesis (Kpro). METHODS: In a prospective non-interventional study, patients with Boston type I Kpro underwent ultra-high resolution optical coherence tomography (UHR-OCT) evaluation. The images were used to measure and describe characteristics of the anterior keratoprosthesis-cornea interface, epithelial interaction at the keratoprosthesis edge and the keratoprosthesis-cornea interface gap...
January 2015: Journal of Ophthalmic & Vision Research
Siamak Zarei-Ghanavati, Reza Alizadeh, Sophie X Deng
PURPOSE: To report the results of topical interferon alpha-2b (IFNα2b) for the treatment of ocular surface squamous neoplasia (OSSN) with 360° limbal involvement. METHODS: In a prospective observational study, five patients with biopsy proven primary or recurrent OSSN with 360° limbal involvement received topical IFNα2b (3 million IU/ml, 4 times daily) and were followed from 8 to 12 months. Outcome measures included resolution of the lesion, relief of symptoms, systemic and ocular side effects, and recurrence rate...
October 2014: Journal of Ophthalmic & Vision Research
Siamak Zarei Ghanavati, Mohamed Abou Shousha, Carolina Betancurt, Victor L Perez
The authors report the long-term results of combined conjunctival autograft and overlay amniotic membrane transplantation (AMT) for treatment of pterygium as a new surgical technique. Nineteen patients including 12 male and 7 female subjects with pterygium (primary, 14 cases; recurrent, 5 cases) underwent combined conjunctival autograft and overlay AMT and were followed from 10 to 26 months. Mean age was 44.21±12.49 (range, 29.0-73.0) years. In one patient with grade T3 primary pterygium, the lesion recurred (5...
July 2014: Journal of Ophthalmic & Vision Research
Siamak Zarei-Ghanavati, Mehran Zarei-Ghanavati, Shadi Sheibani
PURPOSE: To describe a case of traumatic wound dehiscence after deep anterior lamellar keratoplasty. METHOD: Observational case report. CASE REPORT: A 31-year-old man who had undergone deep anterior lamellar keratoplasty using big-bubble technique for keratoconus 3 months earlier presented to emergency room after blunt trauma.On examination, visual acuity was counting fingers at 2 m. The corneal graft wound dehisced from 12 to 3 o'clock (90 degrees) with localized suture ruptures, but the anterior chamber was deep and the Seidel test was negative...
February 2010: Cornea
Siamak Zarei-Ghanavati, Hamid Gharaee, Alireza Eslampour, Mojtaba Abrishami, Soamaye Ghasemi-Moghadam
The goal of this study was to compare differences in the mean angle kappa and its intercepts before and after photorefractive keratectomy (PRK) for myopia. In a prospective controlled study, myopic patients were treated with aspheric wavefront-guided (personalized) PRK with a Bausch & Lomb Technolas 217z excimer laser. The manifest refraction, visual acuity, and angle kappa were evaluated preoperatively and at 1 and 6 months postoperatively. The same operator performed all angle kappa measurements using Orbscan IIz...
February 2014: International Ophthalmology
Mohammad-Ali Javadi, Siamak Zarei-Ghanavati
The number of people with diabetes mellitus is increasing and cataracts are one of the most common causes of visual impairment in these subjects. Advances in cataract surgical techniques and instrumentation have generally improved the outcomes; however,surgery may not be safe and effective in certain individuals with pre-existing retinal pathology or limited visual potential. This review article aims to address different aspects surrounding cataracts in diabetic patients. In a computerized MEDLINE search,relevant studies were selected by two authors using the keywords "diabetes mellitus", "cataract", "diabetic retinopathy" and "diabetic maculopathy"...
January 2008: Journal of Ophthalmic & Vision Research
Mary Ellen Sy, Arturo Ramirez-Miranda, Siamak Zarei-Ghanavati, Jamison Engle, Jennifer Danesh, D Rex Hamilton
PURPOSE: To compare the maximum posterior elevation (MPE) measurements before and after LASIK using a dual rotating Scheimpflug (DRS) imaging system (Galilei, Ziemer Ophthalmic Systems, Port, Switzerland) and a scanning slit-beam (SSB) imaging system (Orbscan IIz, Bausch & Lomb, Rochester, NY). METHODS: This retrospective study included 78 eyes from 78 patients who underwent myopic LASIK. Preoperative and postoperative data collected included anterior and posterior best-fit sphere radius and axial curvature readings, posterior central elevation (PCE), and MPE relative to a best-fit sphere using a 7...
February 2013: Journal of Refractive Surgery
Sonia H Yoo, Florence Cabot, Damien Gatinel, Renato Ambrósio, Yakov Goldich, Siamak Zarei-Ghanavati
No abstract text is available yet for this article.
January 2013: Journal of Cataract and Refractive Surgery
Ali A Sabermoghaddam, Siamak Zarei-Ghanavati, Mojtaba Abrishami
PURPOSE: The goal of this study was to compare higher-order aberrations before and after upper lid chalazion excision. METHODS: Fourteen eyes from 12 patients (8 females, mean age: 28.7 ± 2.7 years) with upper lid chalazion were enrolled in this prospective interventional case series. Chalazia were excised by standard transconjunctival vertical incision. Ocular aberrations were evaluated by aberrometry (ZyWave) before and 2 months after chalazion excision. RESULTS: Root mean square of total higher-order aberrations decreased from 0...
June 2013: Cornea
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