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Biomedical subjects

A Ouertani

Publications and source records attributed to A Ouertani.

At least 19 recordsLinked to original sources
PubMed2005

[Retinal detachment associated with giant retinal tear: surgical procedures and results of the perfluorocarbon liquid-silicone oil exchange with scleral buckling].

INTRODUCTION: Anatomical and functional results of the treatment of retinal detachment associated with giant retinal tear have been markedly improved with the development of the vitrectomy procedure and especially the use of perfluorocarbon liquids. In this study, we report treatment results of retinal detachment associated with giant tear in 17 patients. MATERIALS AND METHODS: Our study included 17 patients (17 eyes), aged between 18 and 61 years, with retinal detachment associated with giant retinal tear. The size of the tear was between 90 degrees and 220 degrees . Proliferative vitreoretinopathy grade C was present in two eyes. Preoperative visual acuity ranged between 40/50 and light perception. All patients underwent scleral buckling, vitrectomy, perfluorocarbon liquid injection to flatten the retina, endophotocoagulation, cryoapplication and temporary silicone oil tamponade. RESULTS: Mean follow-up was 20 months +/- 16. Recurrent retinal detachment occurred in five eyes under silicone oil and in two eyes after its removal. Anatomical success at final follow-up was obtained in 14 eyes (82.3%). Visual acuity improved in all cases with anatomical success in all but one. The most frequent postoperative complications were cataract in 10 cases among 12 phakic eyes and ocular hypertension in four cases. CONCLUSION: Vitrectomy with internal silicone oil tamponade improves the anatomical and functional prognosis of retinal detachment associated with giant retinal tear. Recurrent retinal detachment is usually due to relapsing proliferative vitreoretinopathy. The most frequent postoperative complications remain lens opacification and ocular hypertension.

Adolescent↗
PubMed2004

[Metastatic neoplasia in the optic nerve].

INTRODUCTION: Ocular metastasis always involves the uveal tractus, especially the choroid. Papillary metastases have been exceptionally described, and represent only 5 percent of the ocular metastatic locations. We report in this observation a case of papillary metastasis in a patient treated for a metastatic adenocarcinoma. OBSERVATION: A 35-year-old woman was given chemotherapy for four months for metastatic adenocarcinoma involving the pleura and bones. She consulted for significant decline of visual acuity in the left eye associated with headache and vomiting. The fundus examination revealed a yellowish papillary lesion with edema associated with an inferior peripapillary serous retinal detachment. The fluorescein retinal angiography showed a choroidal lesion highly suggestive of choroidal metastasis. Cerebro-orbital CT scan revealed the presence of multiple cerebral metastases. The patient died four months after diagnosis of ocular metastasis and eleven months after diagnosis of adenocarcinoma. CONCLUSION: Presence of a papillary lesion suggests the possible diagnosis of papillary metastasis despite the lack of a history of neoplasia. Carcinomatosis tumors, especially breast and the lung carcinomas are the most frequent causes of papillary metastasis.

Adenocarcinoma↗
PubMed2001

[Acute lymphoblastic leukemia and vitreous infiltration. A case study].

The infiltration of the vitreous by acute lymphoblastic leukemia is rare. We report the case of a 5-year-old child with acute type-2 lymphoblastic leukemia who had a bilateral dense cellular infiltration resulting in significant vision loss in both eyes with the child counting her fingers at a distance of 20cm. Because the vitreous was not cleared by chemotherapy, we performed a bilateral vitrectomy. Vision improved to 6/10 in both eyes and was stable at the 3-year follow-up.

Child, Preschool↗
PubMed2000

[Retinal flecks in Alport's syndrome].

UNLABELLED: Alport's syndrome is a familial disorder characterized by progressive renal failure, sensorineural hearing loss and ocular manifestations. CASE REPORT: The authors report a case of a 13-year-old child with Alport's syndrome associated with retinal flecks. CONCLUSION: Retinal flecks are the most frequent ocular manifestation in Alport's syndrome and are a considerable help to diagnosis. They are often associated with severe renal failure.

Adolescent↗
PubMed2000

[Patients' opinions about day cataract surgery in a general hospital].

OBJECTIVE: To evaluate the patient satisfaction as a performance indicator of quality of health care delivery in outpatient cataract surgery. PATIENTS AND METHODS: We performed a prospective study using a questionnaire containing 14 items (preoperative work-up, administrative formalities, local anesthesia..) evaluating all the phases of ambulatory surgery for cataract. RESULTS: We collect 75 responding patients and we observed 2/3 of relative satisfaction about outpatient cataract surgery. Negative opinion was in relation with the prolonged time required for preoperative work-up which is done outside the outpatient surgery structure. CONCLUSION: Advances in techniques of locoregional anesthesia and surgery permit today the frequent use of ambulatory treatment in cataract surgery. This method seems to be well accepted by patients. However the prolonged time used to do the preoperative work-up require in the future a centralisation for this procedure.

Ambulatory Surgical Procedures↗
PubMed2000

[Ambulatory cataract surgery].

UNLABELLED: The purpose of this study is to show the result of outpatient cataract surgery and its differences or advantages with inpatient cataract surgery. PATIENTS AND METHODS: The retrospective study concern 722 consecutives patients collected from June 1995 till May 1997; 388 underwent outpatient cataract surgery and 384 underwent inpatient cataract surgery. RESULTS: There were non significant difference between the two groups in type of cataract surgery. Immediate postoperative complications and final visual acuity did not show any significant difference in both groups. CONCLUSION: This analysis shows the great advantages of this simple surgical procedure such an increase in cataract operation leading to a decrease of patients in waiting list.

Adolescent↗
PubMed1997

[Ocular signs of primary hyperoxaluria type I].

PURPOSE: To report the results of ophthalmological examination of 14 patients with primary oxalosis of type I, and to appreciate the diagnostic value of these signs. MATERIAL AND METHODS: Fourteen patients, 7 girls and 7 boys with an average age of 8-35 years (3 months - 15 years). Ten patients had renal failure, 2 died without dialysis and eight were treated with dialysis; 5 out of 8 had hemodialysis and the duration of this treatment varied between 3 months and 3.5 years, 3 out of 8 had peritoneal dialysis. RESULTS: Visual acuity was 10/10 in 11 cases and we noted a vision of 5/10 in one eye in one case. Ocular fundus examination was normal in 7 cases. In 5 cases, it showed numerous minute white round flecks at the posterior pole and near the retinal vessels which probably correspond to deposition of calcium oxalate crystals. In one case we found a diffuse retinal pigment atrophy and in another case a sectorial papillar atrophy without loss of vision. CONCLUSION: This flecked retinopathy can occur before hemodialysis or after a few months or years of hemodialysis. There is no correlation between duration of dialysis and ocular lesions.

Adolescent↗
PubMed1995

[Prevalence of chronic open-angle glaucoma in a county in Tunis].

PURPOSE: The purpose of this study was to determine the prevalence of open angle glaucoma in a population aged 40 years and more living in a county in Tunis (Bardo). METHODS: All subjects were examined according to the same protocol, which included applanation tonometry, examination of the anterior chambre and the optic disc. Goldmann and/or oculokinetic perimetry were performed in subjects with high intraocular pressure (22 mmHg or more) cup to disc ratio of 0.4 or more, optic disc palor, nasal deviation of vessels, presence of hemorhhage of the optic disc. Open angle glaucoma was defined by the presence of any two or all three of the following: high intraocular pressure, glaucomatous visual field defects, and the optic disc changes described above. In cases of denses media opacities the open angle glaucoma was defined when the intraocular pressure was more than 30 mmHg. RESULTS: The prevalence of open angle glaucoma in the 856 subjects was 2.68%. The prevalence increased with age: 0.54% in people 40 to 50 years, 1.71% in people 51 to 65 years and 50.63% in people 65 years or older. Glaucoma was unknown in 91% of the glaucomatous patients screened, and 30.4% had advanced glaucoma. CONCLUSION: The prevalence of open angle glaucoma in our study is slightly higher or similar to that in other white populations but lower than that reported in black populations.

Adult↗
PubMed1994

[Retinal detachment in young patients].

We report 48 cases of retinal detachment in 39 patients under the age of 20. These cases represent 12.6% of all retinal detachment cases. They are characterized by their numerous etiologies mainly traumatic (36%) and congenital detachment (36%). They are also characterized by delayed diagnosis (4 months), frequency of macula involvement (92%) and the large area of detachment (total retinal detachment in 48%). Thirty-six out of the 48 eyes were operated on. Surgical treatment consisted in episcleral surgery in 65% of the cases, associated with vitreoretinal surgery in 35% of the cases. Complete anatomic success was achieved in 78.4% of the eyes, localized retinal detachment without macula involvement remained in 5.4% of the cases. Vision between 1/20 and 2/10 was obtained in 41% of the eyes, and superior or equal to 2/10 in 24% of the eyes. These results depended mainly on the aetiology. In conclusion, we obtained good recuperation in operated cases of juvenile retinal detachment even in delayed diagnosis cases.

Adolescent↗
PubMed1994

[Contribution of an ophthalmologic test to the diagnosis of familial nephropathies. Apropos of 10 cases].

The authors reported ten cases of familial nephropathy (two cystinosis, three Senior and Loken syndrome, one Alport's syndrome and four Oxalosis) associated to ocular manifestations. Aetiologic diagnosis was known from ocular symptoms in five cases (all cases of cystinosis and Senior and Loken syndrome). The authors undertook this study to analyse the value of ocular manifestations in determining the right aetiologic diagnosis in familial nephropathies. The results of this study showed that ocular manifestations are helpful for aetiologic diagnosis in the first diseases. Indeed, corneal injury is synonym of cystinosis and retinitis pigmentosa is usually associated with Senior and Loken syndrome. In Alport's syndrome, ocular manifestations: antcrior lenticonus cataractous and perimacular white points only have orientation value in the diagnosis of this disease. Oxalosis ocular manifestations which consist of retinal oxalate deposits appear late and are concomitant to familial renal insufficiency. They cannot help in the diagnostic search.

Adolescent↗
PubMed1994

[Treatment of late leaking of filtering bullae].

Leaking filtering blebs must be repaired immediately to avoid major complications such as hypotony and endophtalmitis. We report four cases of leaking filtering blebs occurring between one to six years after trabeculectomy. Revealing signs were hypotony in two cases and athalamia in two cases. Patching was done in one case and conjunctival reinforcement by rotation of conjunctival flap in 2 cases and free conjunctival graft in one case. Leaking disappeared in all the cases. Normal intraocular pressure (10-12 mmHg) was obtained in all cases except one which was achieved by rotation of conjunctival flap and complicated by retraction of conjunctiva. Conjunctival reinforcement without exicion of the bleb is an easy technique and respect the filtration site. Major complication in our patients is retraction of conjunctival flap which can be avoided by: exicion of Tenon, good fixation to the cornea, and free conjunctival graft.

Aged↗