Evaluation of VEP parameters in patients before and after cardiopulmonary by-pass surgery.

Purpose: Coronary bypass surgery is emphasized in aetiology of ischemic optic neuropathy. Our aim in this study was to investigate the pattern visual evoked potentials (PVEP) in patients before and after coronary bypass surgery.

Methods: Thirty-one patients were included in the study.

To Evaluate the Effect of Chronic Obstructive Pulmonary Disease on Retinal and Choroidal Thicknesses Measured by Optical Coherence Tomography.

Purpose: To evaluate the retinal and choroidal thicknesses in patients with chronic obstructive pulmonary disease using optical coherence tomography.

Methods: The study included 26 patients with chronic obstructive pulmonary disease (COPD) and 26 age-matched healthy control groups. Detailed ocular examinations were performed on all participants.

Investigation of the role of interleukin-1 receptor antagonist VNTR variant on the Behçet's disease.

Objective: Behçet's disease (BD), a chronic multisystem inflammatory disorder, is mainly characterized by relapsing periods of a wide range of clinical symptoms. Several cytokine genes may play important roles in the pathogenesis of BD. Therefore, interleukin-1 receptor antagonist (IL-1Ra) gene 86bp variable number tandem repeat (VNTR) variant was investigated in patients with BD in a Turkish population.

Peripapillary retinal nerve fiber layer and ganglion cell-inner plexiform layer thickness in adult-onset familial Mediterranean fever.

Objective: The purpose of the present study was to evaluate the thickness of the peripapillary retinal nerve fiber layer (RNFL) and retinal ganglion cell-inner plexiform layer (GCIPL) in adult-onset familial Mediterranean fever (FMF).

Methods: Forty two adult-onset FMF patients and forty two healthy controls were included in the present study. Detailed ocular examination was performed, and then the thickness of the peripapillary RNFL and GCIPL was measured by Spectral domain optical coherence tomography.

Comparison of Endoscopic and External Dacryocystorhinostomy Results and Analysis of Patients' Satisfaction.

Objective: Comparison of endoscopic and external dacryocystorhinostomy (DCR) results and evaluation of patients' satisfaction.

Methods: Forty six (35 females and 11 males) patients who underwent endoscopic DCR and 43 (37 females and six males) who underwent external DCR were included. Surgical success was objectively and subjectively assessed.

Relationship between retinal sensitivity and disease activity in patients with psoriasis vulgaris.

Objectives: Psoriasis is a hyperproliferative chronic inflammatory skin disease of unknown etiology and ocular structures and visual pathways can also be affected during the course of this disease. Subclinical optic neuritis has previously been observed in psoriatic patients in visual evoked potential studies. This trial was designed to evaluate retinal sensitivity in patients with psoriasis vulgaris.

Long-term results of four horizontal rectus muscle recession in nystagmus treatment.

Purpose: To report the long-term results of four horizontal rectus muscle recessions that were performed for infantile nystagmus syndrome treatment.

Methods: In this case series, patients with infantile nystagmus syndrome who had four horizontal muscle recessions previously were recruited and ophthalmological examination and electronystagmography recordings were performed. Objectively, amplitude and frequency of nystagmus were measured from the recordings and the intensity was calculated.

Computed tomography and magnetic resonance imaging findings of acquired dacryocystoceles.

In this study, radiological findings of acquired dacryocystocele are presented. A total of 13 dacryocystoceles including bilateral in two of the patients, in four patients on the left and in five patients on the right, were determined. Six of the patients had dacryocystocele infection.

Evaluation of plasma vitamin A and E levels and tear film changes in patients with psoriasis vulgaris.

Purpose: To evaluate whether alterations in plasma vitamin A and E levels in patients with psoriasis have an effect on tear film changes.

Methods: Sixty-two eyes of 31 patients with psoriasis vulgaris (Group A) and 74 eyes of 37 age- and gender-matched control subjects (Group B) were included in the study. Ocular and medical histories and dietary habits were obtained from each patient.

Association of IL-4 gene VNTR variant with deep venous thrombosis in Behçet's disease and its effect on ocular involvement.

Purpose: Behçet's disease (BD) is a systemic vasculitis characterized by inflammatory lesions of the urogenital mucosa, eyes, skin, central nervous system, and joints. Vein thrombosis constitutes the most frequent vascular manifestation of the disease, and may cause such ocular vascular thrombotic events as central retinal vein and central retinal artery thrombosis. Thrombosis is a serious problem, and often leads to irreversible vision loss.

VKORC1 C1173T and VKORC1 G-1639A gene polymorphisms in Turkish Behçet's patients with ocular and non-ocular involvement.

Background: Behçet's disease (BD) is a multisystemic vasculitis with unknown etiology. Vitamin K epoxide reductase complex subunit 1 (VKORC1) is the key enzyme in the formation of active vitamin K that is a cofactor of various coagulation factors. Polymorphisms of the VKORC1 may affect the levels of active forms of vitamin K-dependent coagulation proteins and the tendency to thrombosis.

Intron F G79A polymorphism of the protein Z gene in Turkish Behçet patients.

Purpose: Vasculitis is one of the major findings of Behçet's disease (BD). Protein Z (PZ) is a glycoprotein that acts as a cofactor of PZ-dependent protease inhibitor and suppresses trombus formation by inhibiting activated factor Xa. Polymorphism of the PZ gene was mentioned as a genetic risk factor for various thrombotic events.

Evaluation of visual field parameters in patients with chronic obstructive pulmonary disease.

Purpose: To evaluate the effects of chronic obstructive pulmonary disease (COPD) on retina and optic nerve.

Methods: Thirty-eight patients with COPD and 29 healthy controls, totally 67 subjects, were included in the study. Visual evoked potentials (VEP) and visual field assessment (both standard achromatic perimetry (SAP) and short-wavelength automated perimetry (SWAP)) were performed on each subject after ophthalmological, neurological and pulmonary examinations.

Evaluation of iron, zinc, and copper levels in pterygium tissue.

Purpose: To determine the concentration of the trace elements iron, copper, and zinc in pterygium tissue and healthy conjunctiva tissue and to investigate the involvement of these elements in pterygium etiopathogenesis.

Methods: Twenty patients with pterygium were enrolled in the study. The pterygium was excised and a conjunctival rotational flap or autograft inserted.

A lacrimal sac mass with bloody discharge.

We report a 38-year-old man who presented with a 7-year history of a mass in the right medial canthal region. He had several episodes of dacryocystitis, epiphora and bloody discharge. A cystic lesion was defined on MRI.

Expression of p97/VCP and ubiquitin during postnatal development of the degenerating rat retina.

In this study, we aimed to investigate the distribution pattern of ubiquitin and p97/VCP in the rat retina during postnatal development. Eyeballs from 1-, 4-, 10-, 36- and 72-week-old rats were examined by immunohistochemistry, and protein colocalization was determined by immunofluorescence microscopy. In the 1-week-old rat retina, p97/VCP was strongly expressed in the neuroblast layer, however no ubiquitin immunoreactivity was observed.

Plasma and aqueous humor angiotensin-converting enzyme levels in patients with diabetic retinopathy.

Purpose: To assess angiotensin-converting enzyme (ACE) levels in aqueous humor and plasma of patients with nonproliferative diabetic retinopathy (NPDR) and proliferative diabetic retinopathy (PDR) as another potent ischemia-induced angiogenic factor.

Methods: The clinical comparative study included 40 patients with diabetic retinopathy and 16 healthy subjects. For all patients, aqueous humors were collected during the cataract surgery or intravitreal injection of triamcinolone acetonide.

Efficacy of intravitreal triamcinolone after or concomitant with laser photocoagulation in nonproliferative diabetic retinopathy with macular edema.

Purpose: To investigate the clinical effects and outcomes of intravitreal injection of 4 mg of triamcinolone acetonide (IVTA) after or concomitant with macular laser photocoagulation (MP) for clinically significant macular edema (CSME).

Methods: Forty-nine eyes of 49 patients with nonproliferative diabetic retinopathy and CSME were randomized into three groups. The eyes in the laser group (n=17), group 1, were subjected to MP 3 weeks after IVTA; the eyes in the IVTA group (n=13), group 2, were subjected to MP, concomitant with IVTA; the eyes in the control group (n=19), group 3, underwent only IVTA application.

A rare brain developmental anomaly in a patient with Usher's syndrome.

We report a rare brain developmental anomaly in Usher's syndrome. We present a 43-year-old male with visual disturbance, hearing loss, and headache. Retinitis pigmentosa and sensorineural hearing loss were determined and he was diagnosed with Usher's syndrome according to the clinical findings.

Idiopathic pigmented free-floating posterior vitreous cyst.

A 28-year-old female who complained of visual symptoms in the right eye was admitted to the ophthalmology clinic. She had been suffering from visual disturbance for about 5 years and her symptoms had become worse during the last 2 months. There was no previous history of trauma, infection or inflammatory disorders.

Serum alpha-1-antitriypsin levels in patients with pseudoexfolative syndrome.

Purpose: To evaluate the levels of serum alpha 1-antitrypsin in patients with pseudoexfoliation syndrome (PEX) and healthy control subjects without PEX.

Material And Methods: Forty-four patient with PEX and 40 healthy control subjects (84 subjects total) were enrolled into the study. Serum ATT levels were measured using nephelometry.

Perfluorodecaline residue in the anterior chamber of a patient with an intact crystalline lens: a case report.

Background: Perfluorocarbon liquids are frequently used as intraoperative tools in vitreoretinal surgery and may occasionally be retained in the vitreous cavity. We report a patient who underwent pars plana vitrectomy for a giant tear after receiving blunt trauma to his right eye and sustained postoperative perfluorocarbon liquid residue in the anterior chamber in spite of an intact crystalline lens.

Case Presentation: Perfluorodecaline was used as a temporary retinal tamponade.

Aqueous humor erythropoietin levels in patients with primary open-angle glaucoma.

Purpose: To evaluate the levels of erythropoietin (EPO) in the aqueous humor in eyes with primary open-angle glaucoma (POAG) and without glaucoma.

Methods: Levels of EPO were measured using a sandwich enzyme-linked immunosorbent assay kit in aqueous humor aspirates taken during anterior segment surgery from 45 patients, of whom 20 had POAG and 25 had senile cataract only.

Results: The mean aqueous humor EPO concentration in eyes with POAG (10.

Atypical fundus lesions in juvenile pseudoxanthoma elasticum.

Background: To report two cases with previously undescribed fundus lesions as early ocular signs of pseudoxanthoma elasticum (PXE).

Methods: Clinical work-up including color photography and fundus fluorescein angiography (FFA).

Results: A 10-year-old girl and an 8-year-old boy (siblings) presented with dermatological exacerbations of PXE.