Publications by authors named "Chaker N"
Purpose: We report a special case of a patient who presented with two rare genetic diseases, Turner syndrome and cone-rod dystrophy (CRD), caused by mutation in the ABCA4 gene.
Methods: We present a case of a 12-year-old female with a progressive visual loss, poor night vision and short stature. We performed a clinical, karyotype of peripheral blood and molecular genetic study.
Introduction: Spontaneous retinal reattachment is very rare in the natural evolution of rhegmatogenous retinal detachment and it is often undervalued.
Aim: To report some cases of this affection.
Methods: A retrospective study was conducted reporting five eyes of five patients who presented for acute visual loss in relation with a confirmed rhegmatogenous retinal detachment.
Purpose: To analyze microvascular changes in patients with retinitis pigmentosa (RP) with relatively preserved visual acuity (VA), using swept source optical coherence tomography (SS-OCT) angiography to correlate results to macular function and structure.
Methods: This was a case-control study conducted over 70 eyes of 35 RP patients with relatively preserved VA. All patients underwent a complete ophthalmic examination, including SS-OCT, OCT angiography (OCT-A), fundus autofluorescence (FAF), and multifocal electroretinogram (mfERG).
Purpose: Our aim was to highlight the presence and the frequency of posterior staphyloma (PS) in non-highly myopic retinitis pigmentosa (RP) patients and to study the relationship between PS and choroidal thickness (CT).
Methods: This was a retrospective case-control study of 77 eyes (39 patients) with RP, axial length inferior to 26 mm and clinically preserved macular area. All patients underwent fundus photography, A- and B-scan ocular ultrasonography, fundus autofluorescence (FAF) and swept source optical coherence tomography (SS-OCT).
Purpose: To report a case of patient who presented with valsalva retinopathy after genral anesthesia for the treatment of ruptured intracranial aneurysm.
Observation: A forty year-old man presented, after a general anesthesia for treatment of a ruptured intracranial aneurysm, with a severe decrease of the visual acuity in the left eye. Ophthalmic examination, performed one month after surgery showed a retrohyaloid macular hemorhage.
Background: Uncorrected refractive error has recently been identified as the leading cause of visual impairment in children worldwide. The prevalence of myopia is increasing. Determination of the epidemiology of myopia is important to develop screening strategy.
View Article and Find Full Text PDFPurpose: To investigate the microbiological profile of acute postoperative endophthalmitis in a referral center in Tunisia and to assess the antibiotic sensitivity of the organisms.
Patients And Methods: This is a retrospective study over a period of eleven years, conducted on patients hospitalized with acute infectious postoperative endophthalmitis. Cultures were performed on aqueous (93%) and vitreous specimens (68%) obtained at presentation.
Characteristics of Astigmatism in a Population of Tunisian School-Children.
Middle East Afr J Ophthalmol
October 2015
Purpose: To evaluate the characteristics of astigmatism in a cross-sectional study of schoolchildren in Tunisia.
Materials And Methods: A random cluster design was used to recruit children from primary schools across urban and rural settings in Tunisia, from 2008 to 2010. A total of 6192 students aged 6-14-years old were enrolled.
Purpose: To measure macular choroidal thickness (CT) using spectral domain optical coherence tomography (OCT) in high myopic eyes with primary angle-open glaucoma (POAG), and to investigate whether the choroid is thinner in these eyes compared to high myopic eyes without glaucoma.
Patients And Methods: We conducted a cross-sectional study of forty-eight eyes with high myopic glaucoma matched with 48 highly myopic eyes without glaucoma by age, central corneal thickness and axial length (AL). OCT scans were performed with the spectral domain OCT (Topcon 2000).
Aim: To study the epidemiological profile and the degree of severity of hyperopia in Tunisia primary school and to assess its effect on school performance.
Methods: A cross-sectional, descriptive survey was conducted among 6-14 aged Tunisian children attending primary urban and rural schools. A total of 6192 children were selected using stratified random cluster sampling.
The extraocular muscle palsies associated with herpes zoster ophthalmicus (HZO) are transient, self-limiting conditions, usually seen in elderly patients. There are different treatment recommendations for paralytic complications, but prognosis has generally reported to be favorable. A 75-year-old male patient presented with diplopia.
View Article and Find Full Text PDFPurpose: To measure macular choroidal thickness (CT) using spectral-domain optical coherence tomography (SD-OCT) in highly myopic eyes with dome-shaped macula (DSM), and to investigate whether the choroid is thicker in these eyes compared to highly myopic eyes without MB.
Patients And Methods: A cross-sectional study of 200 eyes was performed between January 2010 and June 2012. Twenty-four highly myopic eyes (12%) had a dome-shaped macula.
Purpose: To investigate the factors linked to foveoschisis in high myopia.
Methods: Retrospective study of 113 patients (200 eyes) with high myopia was conducted between January 2010 and June 2012. Subjects underwent a complete ophthalmic examination, spectral domain optical coherence tomography (OCT TOPCON 2000) and ocular echography.