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L S Atmaca

Publications and source records attributed to L S Atmaca.

32 records · Page 2Linked to original sources
PubMed1992

Farnsworth-Munsell 100-hue test for patients with diabetes mellitus.

We evaluated 164 eyes of 87 patients with diabetes mellitus compared with 50 eyes from 25 healthy subjects as the control group. We compared 87 patients with diabetes mellitus (164 eyes) in relation to their duration of diabetes, fundus findings, visual acuity, and color vision defects. In all patients, color vision defects were determined using the Farnsworth-Munsell 100-hue test, and the total error score was established on the basis of age norms from subjects without diabetes. No color vision defect was detected in the control group. In the diabetic group, fundus degeneration and color vision defects were observed and correlated with the duration of diabetes. The dominant color defect was of the blue-yellow type.

Adolescent↗
PubMed1990

Experience with photocoagulation in Behçet's disease.

Between 1973 and 1987 we examined both eyes of 300 patients with the uveoretinitis-type lesions characteristic of Behçet's disease. Of the 556 eyes whose fundus could be examined, 38 eyes (6.8%) in 33 patients (11%) had developed retinal capillary nonperfusion, branch retinal vein occlusion, or retinal or disc neovascularization. These eyes were treated by photocoagulation, primarily to forestall vitreous hemorrhage and the development of neovascular glaucoma, as well as to decrease the macular edema resulting from vein occlusion. The treatment, which was well tolerated, was successful in closing retinal capillary nonperfusion areas and eliminating retinal neovascularization. Disc neovascularization was resolved completely in some cases, and partially in others.

Behcet Syndrome↗
PubMed1989

Fundus changes associated with Behçet's disease.

Between 1973 and 1987 we recorded 300 cases of Behçet's disease with fundus changes. Our routine preview of each case included examination with the Goldman three-mirror contact lens, ophthalmoscopy, referral for laboratory tests, color fundus photography and, most importantly, fluorescein angiography. The ophthalmological findings led to the proper diagnosis in 254 (85%) of our cases. Fluorescein angiography revealed incipient fundus changes in 38 eyes of 19 medically diagnosed patients with no visual complaints and normal fundi on ophthalmoscopy. Eighty-six percent of our cases had or developed diverse fundus changes bilaterally. The fundus changes we encountered most frequently were hyperemia of the optic disc, macula edema, retinal edema, vascular sheathing, retinal exudate, and retinal hemorrhage. With the exception of eyes with very poor prognoses, only 184 of the 403 eyes that were followed up for 3-120 months (median 12) experienced new insults in the posterior segment; 40 of these became totally blind while 59 maintained their visual status. Early diagnosis is necessary for proper treatment patients with Behçet's disease. Fluorescein angiography is required for early diagnosis and for monitoring the posterior segment involvement closely. This is the most characteristic and often the most serious consequence of Behçet's disease; it may also the first indicator of the disease.

Adolescent↗
PubMed1989

Levels of zinc in plasma, erythrocytes, and hair, and levels of serum copper in patients with retinitis pigmentosa in Turkey.

This study was made on 100 patients with retinitis pigmentosa and 23 of their relatives. Their plasma, erythrocyte, and hair Zn and serum Cu levels were compared with those of a control group of 14 healthy persons. No statistically significant difference in these levels was found between the patients with retinitis pigmentosa and the relatives or controls.

Adolescent↗
PubMed1988

Pars plana vitrectomy in chronic myelogenous leukemia with vitreous hemorrhage.

Pars plana vitrectomy operations were performed on two cases of vitreous hemorrhage due to chronic myelogenous leukemia. Fundus examination and fluorescein angiography revealed optic disc neovascularization in both, which is a rare fundus finding in chronic leukemias. The first case seen with vitreous hemorrhage in both eyes also had diabetes mellitus with a negative family history, and had received laser therapy on his right eye. His chronic myelogenous leukemia was diagnosed 4 months after vitrectomy was performed on this eye, when he presented with widespread subcutaneous hemorrhages. The second case showed a nonproliferative retinopathy with old laser scars in his right eye and vitreous hemorrhage in his left eye, and had no diabetes mellitus. The diagnosis of chronic myelogenous leukemia was made before the vitrectomy operation when the physical examination revealed splenomegaly. The pathogenesis of retinal and optic disc neovascularization in myeloproliferative diseases, its possible relation with chemotherapy, and the results of the vitrectomy operations were discussed with special emphasis on the importance of ruling out chronic leukemias and other blood dyscrasias in vitreal hemorrhages, retinopathies of unknown origin, and even in diabetic retinopathies with a negative family history.

Diabetic Retinopathy↗
PubMed1984

Follow-up of macular holes.

A qualitative study of the 72 patients presenting between 1969 and 1982 with full-thickness macular holes unassociated with extensive retinal detachment has been made. Twenty-two affected and 19 fellow eyes have been followed for 24 to 120 (median 56) months. Findings point up the need to investigate more closely the factors inhibiting macular hole development and the oftentimes fine distinctions between the ophthalmological, medical, and sociological contributions to this disability and its prevention.

Adolescent↗
PubMedDate not supplied

Fluorescein and indocyanine green videoangiography of choroidal melanomas.

PURPOSE: This study was performed to determine what role indocyanine green video angiography might play in the evaluation of choroidal melanomas, and to compare this role with that of fluorescein angiography. METHODS: Six patients with posterior segment uveal melanoma underwent digital fluorescein and indocyanine green videoangiography. All patients were women and their mean age was 50.7 years. RESULTS: In all eyes with melanoma, fluorescein angiography revealed irregular hyperfluorescence in the early phase and staining of the tumor in the late phase. A double circulation pattern was obvious in 1 eye with a mushroom-shaped melanoma. The patterns of indocyanine green videoangiography varied, depending on the degree of tumor pigmentation, thickness, and vascularity. Early frames of indocyanine green video angiography demonstrated hypofluorescence in all eyes, and the intrinsic choroidal vasculature was obvious in 3 eyes. In the late phase of indocyanine green videoangiograms, different patterns (hyperfluorescence, three-ring pattern) were observed. CONCLUSION: Indocyanine green videoangiography may be a useful adjunct to fluorescein angiography in the evaluation of choroidal melanomas.

Adult↗
PubMedDate not supplied

Bilateral glaucomatous optic neuropathy in Takayasu's disease without cervical arterial stenosis.

PURPOSE: Although significant decrease in retinal perfusion is usually not observed before all of the cervical arteries became markedly narrowed in patients with Takayasu's disease (TD), we present bilateral glaucomatous optic neuropathy in a patient with TD without any cervical arterial stenosis. METHODS: Ophthalmoscopic examination disclosed glaucomatous optic neuropathy in both eyes with 7/10-cup/disc ratio in the right eye and 9/10 in the left eye. Left subclavian selective arteriographic examination demonstrated segmental high-grade stenosis, namely 90 percent stenosis in the mid portion of the left subclavian artery. Arteriography, digital subtraction angiography (DSA), magnetic resonance angiography (MRA) and color Doppler sonography revealed patent cervical, carotid interna, ophthalmic, retinal and posterior ciliary arteries. RESULTS: Patient was followed up for 48 months with frequent intervals and there was no deterioration of visual acuity, visual field and optic neuropathy without any antiglaucomatous treatment. CONCLUSIONS: Although it is a known fact that classical ophthalmic manifestations of the TD occur only when major cervical arteries are occluded, no occlusion was observed in this patient with bilateral optic atrophy. The optic nerve damage is caused by various factors, but these factors require much elucidation before the optic neuropathy can be understood.

Adult↗