Publications by authors named "Yousef Alizadeh"
Purpose: To report two cases of diffuse unilateral subacute neuroretinitis (DUSN) from northern Iran and to present the sequential imaging.
Methods: Two patients with large subretinal nematodes were evaluated and managed in our clinic. Serial fundus photography and optical coherence tomography (OCT) imaging were used to document the course of the disease.
Purpose: To assess the correlation among cognitive impairment (CI) and the degree of diabetic retinopathy (DR).
Methods: The current analytic cross-sectional study has been carried out on two hundred ten individuals having diabetes mellitus type 2. Individuals were split into 7 groups in order of severity of DR in the worse eye with 30 cases in each group.
Peripapillary Choroidal Neovascularization Type 2 With Pitchfork Sign: A Case Report.
J Ophthalmic Vis Res
November 2023
Purpose: This study aimed to report a case of peripapillary choroidal neovascularization (CNV) with a pitchfork sign.
Case Report: A young female presented with a progressive and painless visual blurring of the left eye. Ophthalmoscopic findings and results of optical coherence tomography (OCT), OCT angiography (OCTA), and fluorescein angiography (FAG) were evaluated.
Does Long-Term Night Shift Work Cause Dry Eye in Hospital Nurses?
J Ophthalmic Vis Res
November 2023
Purpose: To determine the long-term effects of night shift work on dry eye in hospital nurses.
Methods: Each participant was evaluated four times, including at the beginning of the day shift (8 am), at the end of the day shift (2 pm), at the beginning of the night shift (8 pm), and at the end of the night shift (8 am), using the tear break-up time (TBUT) test and ocular surface disease index (OSDI) questionnaire.
Results: The results showed significant differences in the TBUT and OSDI between the end of the day shift (2 pm) (10.
Objective: To evaluate and compare choroidal thickness (CT) between patients with Meniere's disease (MD) and a control group.
Methods: This case-control analytical study was conducted on 37 subjects with MD and 37 healthy subjects. Subfoveal CT (SCT), large choroidal vessel (LCV) layer thickness, and mean subfoveal LCV thickness/mean SCT ratio were measured using enhanced-depth imaging optical coherence tomography (EDI-OCT) in the eyes on the MD side (ipsilateral), the contralateral eyes, and the control group.
Background: The basis of the overcorrecting minus lens is to induce compliance and consequently prevent constant exotropia. Some previous studies advocated early surgical therapy and others suggested over-minus treatment. Our purpose is to evaluate the success rate of the over-minus lens.
View Article and Find Full Text PDFArticle Synopsis
- The study examined the prevalence and factors associated with cataract among adults aged 50 and older in Gilan Province, Iran, finding that 50.50% were affected by cataracts, primarily those over 80 years old.
- It involved nearly 3,000 residents with comprehensive examinations and questionnaires to gather data on age, gender, previous surgery, and sunlight exposure.
- Key findings indicated that older age and having a history of eye surgery increased cataract risk, while more sunlight exposure was linked to a lower prevalence of cataracts.
Article Synopsis
- A study conducted in 2014 examined refractive errors (RE) among individuals aged 50 and older in Gilan, Iran, analyzing factors like age, BMI, and education related to these errors.
- The study included 2,587 participants and found prevalence rates of 19.2% myopia, 48.6% hyperopia, and 57.4% astigmatism, with higher incidences noted in those over 70 years.
- Results indicated that older age and specific types of cataracts increased the risk of myopia, while higher BMI was linked to a greater risk of hyperopia, with increased education levels associated with reduced myopia risk.
Purpose: To assess the longitudinal changes of choroidal thickness using enhanced depth imaging optical coherence tomography (EDI-OCT) during pregnancy and postpartum.
Methods: The study included 23 eyes of 23 healthy pregnant women and 23 eyes of 23 healthy nonpregnant women. Choroidal thickness was measured manually with EDI-OCT at seven locations: The fovea, 500, 1000, and 1500 μm temporal (T) from the fovea and 500, 1000, and 1500 μm nasal (N) from the fovea.
Article Synopsis
- The study aimed to assess the effectiveness of applying topical cyclosporin A (CsA) after pterygium surgery to prevent recurrence.
- A total of 78 patients were divided into two groups: one received CsA drops, while the other served as a control, and various postoperative outcomes were monitored over several months.
- The results indicated no significant differences in recurrence rates, inflammation, or complications between the CsA group and the control group, suggesting that CsA does not provide additional benefits post-surgery.
Purpose: To present a relatively rare case of retinal toxicity and consequent severe vision loss due to Closantel ingestion.
Case Report: A 37-year-old female presented with sudden painless decrease vision in both eyes. She had no previous history of medical disease and denied any trauma.
Background: To determine the applicability of current international and national retinopathy of prematurity (ROP) screening guidelines and to identify a suitable community-based screening criterion.
Methods: A retrospective study on premature neonates (≤37 weeks gestation) referred to a tertiary eye hospital ROP clinic in the north of Iran was conducted over a 10-year period. Neonates were classified as no ROP, with ROP and type 1 ROP.
Article Synopsis
- - The case discusses a 12-year-old boy with linear scleroderma called "en coup de sabre," who experienced vision loss in the area affected by the condition.
- - An eye examination revealed serious issues like vitreous hemorrhage and telangiectatic vessels, indicating a Coats'-like response, which was confirmed by fundus fluorescein angiography showing vascular abnormalities.
- - The patient was treated successfully with intravitreal bevacizumab and targeted retinal photocoagulation, leading to significant visual recovery over a 12-month follow-up; this highlights the need for careful eye examinations for conditions related to en coup de sabre.
Purpose: Microvascular involvement in patients with diabetes mellitus is one of the causes of retinopathy, nephropathy, and neuropathy. The same pathologic processes may occur in the inner ear structures. This case-control study aimed to evaluate the hearing thresholds in type 2 diabetic patients with different severity of diabetic retinopathy (DR) and to compare these findings with controls.
View Article and Find Full Text PDFPurpose: To compare the outcomes of phacoviscocanalostomy and viscocanalostomy in patients with primary open angle glaucoma.
Methods: This non randomized, prospective comparative study included 168 eyes of 168 patients with primary open angle glaucoma (POAG). Phacoviscocanalostomy was performed in 94 eyes with POAG and cataract and viscocanalostomy was performed in 74 eyes with POAG.
Purpose: Viscocanalostomy represents an alternative to standard penetrating glaucoma surgery. The aim of this study is to compare the outcomes of combined phacoemulsification and viscocanalostomy in eyes with primary open-angle glaucoma (POAG) versus eyes with pseudoexfoliation glaucoma (PEXG).
Methods: In this prospective non-randomized comparative study, eyes with cataract and POAG or PEXG were enrolled.
Purpose: To determine the benefits of performing preoperative spectral domain optical coherence tomography (SD-OCT) and to identify occult macular pathologies in patients scheduled for routine cataract surgery.
Methods: In this cross-sectional study, macular SD-OCT scans were performed on all patients with clinically undetected macular abnormalities who were scheduled for cataract surgery. Patients with clinically evident macular abnormalities were excluded from the study.
Objectives: This study aimed to report a case of laser-induced macular neovascularization (MVN) following accidental exposure to Alexandrite laser.
Methods: A young female presented with a painless visual blurring of the right eye 25 days after direct inadvertent exposure to a single discharge from a 750-nm Alexandrite hair removal procedure. The best-corrected visual acuity (BCVA) of the right eye was finger count 3 m (M).
Background: Clomiphene citrate is an estrogen receptor ligand with mixed agonistic-antagonistic properties used for the treatment of female and male infertility. Various visual disturbances and several irreversible visual outcomes have been associated with clomiphene citrate. In this report, we present a patient with presumed clomiphene-induced optic neuropathy.
View Article and Find Full Text PDF: To estimate the prevalence and associated factors of AMD in an Iranian population in 2014.: In this population-based cross-sectional study, a total of 2975 Iranian residents (age: ≥50 years) from the urban and rural areas of Gilan province were included. The prevalence of different grades of AMD was determined using the International Age-Related Maculopathy Epidemiological Study Group grading system.
View Article and Find Full Text PDFPurpose: To evaluate the correlation of corneal elevation and difference elevation with severity of keratoconus.
Methods: Anterior and posterior corneal elevations with both conventional and enhanced best-fit spheres (using rotating Scheimpflug camera) were measured. Front and back difference elevation were extrapolated from difference map of Belin/Ambrỏsio Enhanced Ectasia Display of the Scheimpflug system.
Purpose: The aim of this study was to evaluate the safety and efficacy of collagen cross-linking (CXL) in advanced progressive keratoconus with a maximum keratometry (K) value of more than 58 diopters (D).
Methods: This prospective interventional case series involved patients with advanced progressive keratoconus with a K of more than 58 D. The best-corrected visual acuity (BCVA), uncorrected visual acuity (UCVA), K, mean keratometry (K) value, corneal astigmatism, and thinnest corneal thickness before surgery and 24 months after CXL were determined for 30 eyes of 27 patients.