PubMed Health⌕ Search

Biomedical subjects

S Ayed

Publications and source records attributed to S Ayed.

At least 37 records · Page 2Linked to original sources
PubMed1995

[Regressive bilateral retinoblastoma. Clinical and genetic study. Apropos of a case].

The authors report the observation of a 35-year-old patient, mother of 5 children 4 of whom are carriers of bilateral retinoblastomas. Two of these children presented lesions suggestive of retinoma retinoblastoma association. The patient had peripheral retinal lesions evoking the diagnosis of regressive bilateral retinoblastoma. At present, the term retinoma or retinocytoma seems to be more adequate. The genetic study of this family was done with D esterase and DNA molecular biology.

Adult↗
PubMed1995

[The cornea of diabetics].

PURPOSE: The aim of the study is to investigate corneal sensitivity and the risk factors of corneal hypoesthaesia in diabetics. METHODS: General examination and full ophthalmologic examination completed by exploration of corneal sensitivity were performed in one hundred thirty diabetic patients. RESULTS: Eleven per cent of patients showed microkystic oedema, whereas corneal hypoesthaesia was found in 45% of cases. Corneal hypoesthaesia was correlated with the duration and balance of diabetic mellitus, the age of patients and the presence of diabetic retinopathy. On the other hand, peripheral neuropathy was found in 88% of cases. CONCLUSION: Ophthalmologic examination of diabetics should not be limited to retina only but should also include the entire eye ball and especially the cornea in patients with high risk.

Adolescent↗
PubMed1994

[Choroid metastases].

PURPOSE: The aim of the present study is to investigate the clinical features and the risk factors characteristic of choroidal metastasis, which is known as the most common malignant neoplasm of the adult eye. METHODS: A systematic ophthalmologic examination together with angiography and echography were performed in 106 patients with carcinoma. RESULTS: 10% of patients showed choroïdal metastasis. Breast and bronchogenic carcinoma were the most common primary tumor. 82% of cases died within a mean 6.5 months. Clinical, angiographic, echographic and histopathologic features of such metastasis were described. CONCLUSIONS: The importance of an early diagnosis of such metastasis are raised.

Adolescent↗
PubMed1994

[Methods for screening and surveillance of diabetic retinopathy].

PURPOSE: The aim of this study is to investigate the various tests which allow to detect and follow-up diabetic retinopathy (DR). METHODS: Sixteen patients without DR or with background retinopathy underwent, once every six months: a full ophthalmologic investigation; a fluorescein angiography; a color vision test; a central visual field investigation. RESULTS: The impairment of angiography preceeded damage of eye fundus in 27% of cases. Deficiency of color vision and visual field were found in 57% of cases and in 35% respectively. These preceeded the appearance of angiographic DR in 50% of cases and 32% of cases respectively. CONCLUSION: The importance of such tools in the evolution of DR especially in young diabetics is discussed.

Adult↗
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

[Recurrent corneal erosion. Apropos of a case].

Recurrent corneal erosion (RCE) is a disease which often occurs in women. The authors report one case of RCE in the right eye of a 38 year old woman age. Clinical signs and clinical course under treatment are described. The pathogenesis and treatment of RCE are also described.

Adult↗
PubMed1994

[The cornea and synthetic antimalarials].

The main targets of antimalarial ocular toxicity are the cornea, ciliary body and retina. In sixty patients treated with chloroquine (Nivaquine) 73% showed keratopathy. The clinical features and clinical course of this keratopathy and its relationship with retinopathy were described. In contrast with retinopathy, keratopathy is not contraindication to antimalarial treatment.

Adolescent↗
PubMed1993

[Etiologies and risk factors of endophthalmitis].

Endophthalmitis is a serious disease with multiple aetiologies. Its development seems to be dependent upon various risk factors. Among 99 cases of endophthalmitis, 79% were secondary to intraocular surgery especially cataract surgery and perforating ocular trauma. To identify risk factors of post-cataract surgery endophthalmitis, we performed a case-control study: 55 cases and 269 controls were used. Five risk factors were identified: duration of the operative procedure longer than 60 min, suture dehiscence, persistence of lens mass, traumatic cataract and left eye operated. The importance of prevention of endophthalmitis by avoiding such risk factors is raised.

Adolescent↗
PubMed1992

[Results of trabeculectomy in congenital glaucoma].

Congenital glaucoma has a very serious prognosis. It represents the first cause of blindness in Tunisian children. Trabeculectomy introduced by Cairns in 1968, was initially proposed as second-line treatment in congenital glaucoma surgery. It has now become more frequently used as first-line treatment in this indication. We have already used this technique directly in 35 children suffering from congenital glaucoma with a total of 54 eyes. Forty four eyes underwent a single operation, ten eyes underwent two to four trabeculectomies. Then study of these cases with a mean follow up of 24 months shows an overall success rate of 64% after one trabeculectomy, with or without additional medical treatment. The study of tonometric diagrams shows that the successful results obtained after 3 months persisted in the long term. Trabeculectomy gives better results in congenital glaucoma with intraocular pressure greater than 40 mmHg. Repeated operations are sometimes necessary. In these cases, postoperative subconjunctival 5 fluorouracil (SFU) did not improve the surgical outcome.

Child↗
PubMed1992

[The visual field of patients with pseudophakia using kinetic and automated perimetry].

One of the major benefits of pseudophakia is to maintain a good visual field. Visual field was therefore studied in 40 pseudophakic eyes using: 1. kinetic perimetry according to Goldmann using 3 tests: I1, I2, I4; 2. Automated perimetry. Insertion of a posterior chamber intraocular lens was performed in 85% of cases whereas the remaining 15% received an anterior chamber intraocular lens. Visual acuity was > 5/10 P2-P4 in all patients. The results showed a 15% reduction in the visual field compared to normal values. This reduction was concentric and harmonious but was more marked in internal isopters. This reduction was less marked with posterior chamber intraocular lenses. On the other hand, automated perimetry showed that global retinal sensitivity was decreased in pseudophakia, and this deficiency was more pronounced in the periphery.

Follow-Up Studies↗
PubMed1992

[Developmental aspects of diabetic retinopathy during pregnancy].

The course of diabetic retinopathy (DR) was studied in 93 pregnant patients. Results were compared with data from 98 diabetic non pregnant women. Worsening of initial retinal lesions was observed in 16% of the pregnant group whereas only 6% of the control group showed a similar aggravation. The difference between the two groups was statistically significant (p < 0.05). Argon laser panretinal photocoagulation of pre-proliferative and proliferative DR resulted in no subsequent DR-induced complications. On the other hand, the risk of appearance of DR and/or its worsening during pregnancy depends on initial network but mostly on the duration of diabetes mellitus. In conclusion, regular ophthalmologic examination of diabetic patients especially during pregnancy seems crucial for the early screening of any worsening. Furthermore, the importance of pregnancy planning is emphasized.

Adult↗
PubMed1992

[Senile cataract and trachoma in Tunisia].

Senile cataract is the major cause of curable blindness in Tunisia (51%). Other factors than advanced age seem to play a role in senile cataract. The simultaneous of senile cataract with the trachoma makes the surgical operation problematic. In order to evaluate the frequency of such risk factors, we have realized a prospective study in two groups of patients recruited in 4 hospitals centers in Tunisia. The two groups of patients were homogenous regarding to age (more than 45 old year) sex and geographic origins. Cataract was present in the first group (287), but not in the second group (169) risk factors which were evidenced are: diabetes or abnormal glucose test tolerance, high systemic blood pressure, especially diastolic, low education and non professional occupation, family history of cataract. Evolutive trachoma was found in 5.1% of cases compared to only 0.6% in controls (p = 0.02). Trachoma sequela were found in the two groups. The importance of an evaluation of such risk factors in senile cataract is raised.

Aged↗