Melanocytoma of the ciliary body diagnosed by fine-needle aspiration biopsy.

A 55-yr-old African American man was referred for evaluation of a mass involving the anterior choroid/ciliary body in his left eye. Dilated fundus examination revealed a large, deeply pigmented mass associated with an exudative retinal detachment. Ultrasonography demonstrated an elevated mass which involved the anterior uvea and showed low reflectivity by standardized A-scan. Cytologic examination of fine needle aspiration (FNA) biopsy from the tumor was interpreted as a melanocytoma. The patient developed a total retinal detachment and secondary glaucoma which led to enucleation of the eye. Histopathologic examination confirmed the diagnosis of melanocytoma. To our knowledge, this is the first report in which the diagnosis of uveal melanocytoma was established by FNA biopsy and later confirmed histopathologically.

Triple viral retinitis diagnosed by polymerase chain reaction of the vitreous biopsy in a patient with Richter syndrome.

PURPOSE: To report the evaluation and identification of herpes viruses associated with retinitis in a patient with Richter syndrome. METHODS: Diagnostic vitrectomy was performed on a patient with systemic leukemia and retinitis. The vitreous sample was evaluated by cytology, analysis of cytokines by ELISA, and detection of virus by polymerase chain reaction. RESULTS: The vitreous biopsy specimen showed no malignant cells but predominant CD8+ lymphocyte infiltration with elevated interferon gamma and interleukin-6. DNA amplification and Southern blot analysis demonstrated DNA of herpes simplex, varicella-zoster, and cytomegalovirus. CONCLUSION: Retinitis associated with multiple viruses in the vitreous biopsy may mimic leukemic infiltration in the eye.

Alfentanil decreases the excitatory phenomena of sodium methohexital.

STUDY OBJECTIVE: To evaluate the effects of alfentanil or lidocaine on the excitatory phenomena (myoclonus, cough, hiccough) caused by methohexital anesthesia and on the hemodynamic changes induced by retrobulbar block. DESIGN: Prospective, randomized, placebo-controlled, double-blind study. SETTING: University-affiliated, tertiary-care hospital. PATIENTS: 60 ASA physical status II and III patients who were admitted for elective cataract extractions and intraocular lens implantations. INTERVENTIONS: Patients were randomly assigned to one of three groups. After adequate preoxygenation in the holding area, Group 1 received alfentanil 5 micrograms/kg intravenously (i.v.), Group 2 received lidocaine 1 mg/kg i.v. and Group 3 received the placebo (saline) i.v. Immediately after the bolus injection of the study solution, sodium methohexital 1.5 mg/kg was injected i.v. over 30 seconds. As soon as the eyelid reflex was lost, the retrobulbar block was placed over 5 seconds. MEASUREMENTS AND MAIN RESULTS: Occurrences of excitatory phenomena were recorded by an independent observer who was blinded as to treatment allocation. Other side effects such as oculocardiac reflex, nausea, vomiting, itching, or chest wall rigidity were recorded. Vital signs were recorded at baseline and 1, 3, and 5 minutes after placement of the block. In the alfentanil group, the incidence of myoclonus or cough was significantly less than in the lidocaine or placebo groups. Alfentanil also decreased systolic and diastolic blood pressure significantly at 1, 3, and 5 minutes after retrobulbar block. Changes in heart rate were not significantly different from baseline. CONCLUSION: A small dose of alfentanil (5 micrograms/kg i.v.) decreases myoclonus and cough induced by sodium methohexital anesthesia i.v., resulting in improved quality of induction of anesthesia. Alfentanil also attenuates the cardiovascular responses caused by placement of a retrobulbar block.

Semiconductor diode laser transscleral cyclophotocoagulation in a patient with glaucoma secondary to metastatic tumor to the iris.

PURPOSE: Management of a case of glaucoma secondary to an iris metastasis is reported. RESULTS: A 31-year-old woman developed glaucoma secondary to a metastatic tumor to the iris. Anti-glaucoma medication failed to control the increase in intraocular pressure (IOP). However, diode laser cyclophotocoagulation controlled the IOP. CONCLUSION: Glaucoma secondary to an iris metastasis is difficult to manage. Diode laser cyclophotocoagulation is effective in controlling the increase in IOP without affecting visual acuity.

The use of topical cyclosporin A in ocular graft-versus-host-disease.

Ocular manifestations of GVHD include keratoconjunctivitis sicca, cicatricial lagophthalmos, sterile conjunctivitis, persistent corneal epithelial defects, corneal ulcers and corneal melting. Conventional initial therapy such as lubrication and topical steroids is directed to treat decreased tear production and ocular surface abnormalities. The purpose of this study was to illustrate the possible benefit of topical cyclosporin A 1% (CsA) as an adjunct in managing ocular surface abnormalities in five cases of GVHD refractory to conventional therapy. Five clinical case reports of chronic GVHD patients in whom conventional therapy was inadequate to stop the progression from its initial presentation are described. Patient presentation varied in severity on a spectrum of mild to moderate diffuse punctate epithelial erosions to sterile necrotizing corneal melts. Although systemic therapy for GVHD consisting of systemic immunosuppressants (ie cyclosporin A and corticosteroids) was given to these patients, this therapy was insufficient in managing the ocular manifestations of the disease. Topical CsA was added to the treatment regimen and the progression of the ocular disease was recorded. The addition of topical CsA 1% probably helped in controlling the epithelial keratitis and melting process in our reported cases and we conclude that topical CsA may be an appropriate modality in managing ocular surface abnormalities in patients with ocular GVHD after conventional treatments have been tried. However, a further randomized clinical prospective study is needed to evaluate the efficacy of topical CsA in managing these problems in GVHD patients.

Lipaemia retinalis.

PURPOSE: To present a patient with the rare condition of lipaemia retinalis and discuss the clinical features of this condition and its association with elevated triglyceride levels. METHODS: Clinical evaluation of the patient, including fundus photographs before and after the initiation of a low fat diet, was undertaken. RESULTS: Lowering of serum triglyceride and cholesterol levels was associated with complete resolution of the clinical picture of lipaemia retinalis. CONCLUSIONS: Lipaemia retinalis is a rare condition that is related to markedly elevated triglyceride levels. Lowering triglycerides levels leads to resolution of the clinical picture of this disease.

Bilateral malignant melanoma of the choroid in the United States.

We examined a 73-year-old woman with bilateral malignant melanoma of the choroid associated with multiple nonocular malignancies. Fine-needle aspiration biopsy was performed in the left eye to provide a tissue diagnosis. Cytologic examination of the lesion in the left eye confirmed the diagnosis of primary malignant choroidal melanoma. This case demonstrates that bilateral malignant melanoma of the choroid occurs more frequently than expected, and may be associated with nonocular malignancies.

Evaluation of ocular safety: tirapazamine plus cisplatin in patients with metastatic melanomas.

Ninety-six patients with metastatic melanoma treated with two consecutive tirapazamine-cisplatin combination chemotherapy regimens were followed for signs of therapy-related ocular toxicity. Baseline and follow-up data were obtained such that each patient acted as his own control. A battery of vision-related tests was performed. These included: best corrected visual acuity, color vision, retinal fundus examination and electro-oculograms (EOG). A brief health-related quality of vision test was administered at each follow-up visit to detect and evaluate self-perceived changes in visual status. In the first study, 48 patients received i.v. tirapazamine over 2 h at 260 mg/m2 (group 1) while in the second study 48 patients (group 2) received i.v. tirapazamine at 390 mg/m2. Visual system assessment was conducted at three timepoints: first at baseline, then at 6 weeks post-baseline, i.e. after two courses of chemotherapy and visit two upon discontinuation of therapy. There was no difference in visual acuity between group 1 and group 2 at baseline, follow-up 1 or at follow-up 2. Grouped data indicate that visual acuity was not affected by either dosage of chemotherapy. Group 1 at baseline found 15% below the normal EOG cutoff point, increasing to 23% at follow-up 1 and increasing at follow-up visit 2 to 33%. Group 2 demonstrated the same EOG findings, but the results were more magnified: baseline, 24%; follow-up 1, 44%; and follow-up 2, 44%. After eliminating those with abnormal color vision baselines, 21% (nine of 42) group 1 patients demonstrated abnormal color vision total error scores at follow-up 1 and 16.7% (four of 24) at follow-up 2. Few individuals showed changes in the higher dosage group. With the exception of one person in each dosage group, all changes were along the blue-yellow (tritan) axis, which is associated with acquired color defects. Of 96 patients examined, proven fundus changes were found in only four subjects. These fundus findings included retinal hemorrhages, retinal nerve fiber layer infarcts (cotton wool spots) and small retinal pigment epithelium detachments. There was no systematic statistical significant difference among the various measures of visual system outcome between groups or test times. Data from all tests for individual patients in both groups reveals a sporadic distribution of changes in visual system tests. If toxicity were pronounced, one would expect consistency in the findings and all or most of the assessment tests would be abnormal for a particular patient. However, patients who were abnormal on one measure of acuity were not necessarily abnormal on the other measures.

Ophthalmic manifestations of systemic cancer.

The incidence of ocular metastases is approximately 300,000 cases a year, most often from breast or lung primaries. Usually, the primary has already been diagnosed, and the appearance of ocular metastases is an ominous sign. Sometimes ocular metastases may be the first sign of a systemic primary. The authors describe what to expect on ophthalmological examination of a patient with cancer, and what the findings can tell you.