Despigmentação precoce em caso de ceratopigmentação / Early depigmentation in case of keratopigmentation

RESUMO A ceratopigmentação teve seu primeiro registro pelo filósofo Galeno há muitos séculos como uma estratégia utilizada para o tratamento estético de pacientes com leucomas. As córneas com leucoma são patológicas e, muitas vezes, intolerantes a lentes de contato cosméticas ou próteses oculares, sendo comum a queixa de desconforto excessivo, proporcionado pela superfície corneana irregular. Assim, a ceratopigmentação é uma alternativa para a melhora estética de pacientes com opacidades corneanas. Descrevemos o caso de um paciente do sexo masculino, 39 anos, que apresentou despigmentação precoce em caso de ceratopigmentação associado a quadro de ceratite herpética necrotizante. O paciente foi submetido ao tratamento com aciclovir 2g ao dia e doxiciclina 200mg ao dia, evoluindo com melhora do quadro clínico, apesar da má adesão medicamentosa.

ABSTRACT Keratopigmentation was first recorded many centuries ago by the philosopher Galeno, as a strategy used for the aesthetic treatment of patients with leukomas. Corneas with leucoma are pathological and often intolerant of cosmetic contact lenses or ocular prostheses, with complaints of excessive discomfort provided by the irregular corneal surface being common. Therefore, keratopigmentation is an alternative for the aesthetic improvement of patients with corneal opacities. We describe the case of a 39-year old male patient, who presented early depigmentation in a case of keratopigmentation associated with necrotizing herpetic keratitis. The patient was treated with Acyclovir 2g/day and Doxycycline 200mg/day, evolving with clinical improvement, despite poor medication adherence.

Imagenología diferencial por microscopia confocal in vivo entre la epiteliopatía por acanthamoeba y la queratitis por herpes simple / In vivo confocal microscopy imaging for the differential diagnosis of Acanthamoeba epitheliopathy and herpes simplex keratitis

La queratitis por Acanthamoeba es una infección corneal de baja incidencia, condicionada por varios factores, pero con manifestación clínica variada y sintomatología típica. En su fase epitelial debe ser diferenciada de otras queratitis, específicamente de la queratitis por herpes simple, por la similitud entre ambas en cuanto a las características de la lesión corneal. La microscopia confocal in vivo constituye una alternativa diagnóstica. Es una biopsia fotográfica en cuyas imágenes podemos describir los quistes y trofozoítos de Acanthamoeba desde etapas iniciales, que nos ayudan a diferenciarla de otros tipos de queratitis e iniciar el tratamiento precoz. Se realizó una búsqueda de artículos publicados, con el objetivo de mostrar las imágenes por microscopia confocal de la fase epitelial de la infección corneal por Acanthamoeba y herpes simple. Se utilizó la plataforma Infomed, específicamente la Biblioteca Virtual de Salud(AU)

Acanthamoeba keratitis is a low-incidence corneal infection caused by several factors and characterized by a variety of clinical manifestations and typical symptoms. In its epithelial phase, it should be differentiated from other keratitis, particularly from herpes simplex keratitis, due to the similar characteristics of the corneal lesion. In vivo confocal microscopy is a diagnostic alternative consisting in a photographic biopsy showing images of Acanthamoeba cysts and trophozoites since their initial stages, thus allowing differentiation from other types of keratitis and the initiation of early treatment. A search was conducted of published papers with the purpose of showing confocal microscopy images of the epithelial phase of Acanthamoeba and herpes simplex corneal infection. Use was made of the platform Infomed, specifically the Virtual Health Library(AU)

Infecção por HSV-1, do corticoide ao transplante: relato de caso / HSV-1 infection, from corticoid to transplant: case report

INTRODUÇÃO: O herpes vírus simples está presente em cerca de 67% da população até os 50 anos. O herpes vírus tipo I apresenta, geralmente, repercussões acima da região umbilical, como por exemplo a ceratite herpética, que necessita de um diagnóstico e tratamento precoce, a fim de diminuir a morbidade da doença. OBJETIVO: Relatar o caso de um paciente com histórico de ceratite herpética que evoluiu com um quadro de perfuração corneana devido ao uso indiscriminado de corticoide. RELATO DE CASO: homem, 57, vem ao consultório com queixas de incômodo e vermelhidão em olho direito. Este com diagnóstico prévio de herpes com recidiva de endotelite e ceratite herpética, e por isso iniciado Maxidex®, colírio, por conta. À biomicroscopia de olho direito indicou úlcera geográfica grande associada a uma área de afinamento central importante da córnea. Colírio suspenso com início de antiviral. Ao retorno, foi confirmando a perfuração corneana e o transplante corneano foi imediatamente indicado. CONCLUSÃO: O caso ilustra a importância da orientação correta ao paciente, reforçando a necessidade de acompanhamento oftalmológico constante especialmente nos casos de pacientes com herpes recorrente, ou imunossupressão visto as peculiaridades de suas diferentes formas e a rápida instalação de complicações oculares da infecção herpética tal como as consequências do uso indiscriminado de corticoides

INTRODUCTION: Herpes simplex virus is present in about 67% of the population up to 50 years of age. Herpes virus type I generally has repercussions above the umbilical region, such as herpetic keratitis, which requires early diagnosis and treatment in order to reduce the disease's morbidity. OBJECTIVE: To report the case of a patient with a history of herpetic keratitis who developed corneal perforation due to indiscriminate use of corticosteroids. CASE REPORT: man, 57, comes to the office with complaints of discomfort and redness in his right eye. This with previous diagnosis of herpes with recurrence of endothelitis and herpetic keratitis, and for this reason Maxidex®, eye drops, started. Biomicroscopy of the right eye indicated a large geographical ulcer associated with an important central thinning area of the cornea. Suspended eye drops with onset of antiviral. Upon return, the Korean perforation was confirmed and the corneal transplant was immediately indicated. CONCLUSION: The case illustrates the importance of correct patient guidance, reinforcing the need for constant ophthalmological monitoring especially in cases of patients with recurrent herpes, or immunosuppression given the peculiarities of its different forms and the rapid installation of ocular complications of herpetic infection as well as the consequences of indiscriminate use of corticosteroids

Queratoplastia en perforación corneal / Keratoplasty in corneal perforation

RESUMEN La perforación corneal es una emergencia médica que por su gravedad puede poner en peligro la integridad del globo ocular. Se informan los resultados en una serie de 25 pacientes y sus 25 ojos con perforación corneal de diversas etiologías, los cuales constituyen el mayor porcentaje de pacientes con queratopatía herpética a quienes se les realizó queratoplastias primarias terapéuticas, así como dos retrasplantes ópticos, en el Hospital Clínico Quirúrgico "Hermanos Ameijeiras". El 83,4 por ciento de los ojos fueron conservados con agudeza visual desde 0,05 a 0,8 con corrección óptica(AU)

ABSTRACT Corneal perforation is a medical emergency whose severity may jeopardize the integrity of the eyeball. Results are presented of a series of 25 patients and their 25 eyes with corneal perforation of varying etiologies. This group constitutes the largest percentage of patients with herpetic keratopathy undergoing primary therapeutic keratoplasties. Two of them underwent optical retransplantation at Hermanos Ameijeiras Clinical Surgical Hospital. Of the total eyes, 83.4 percent were preserved, with a visual acuity of 0.05 to 0.8 with optical correction(AU)

Retinitis necrotizante aguda. A propósito de un caso / Acute necrotizing retinitis. Case report

RESUMEN La retinitis necrotizante aguda, es una necrosis retinal de todas las capas de la retina. Se caracteriza por necrosis fibrinoides de la pared de los vasos y oclusión vascular. Se presentó un caso de una paciente de 42 años de edad, con pérdida brusca de la visión del ojo derecho, con una semana de evolución. Al examen oftalmológico se observó haze vítreo 2+, edema sucio del disco óptico, con borramiento de todos sus bordes. Presencia de exudación blanca-amarillenta retiniana extensa, en toda la periferia y área ecuatorial asociada a hemorragias intraretinianas. Se realizó además del examen fundoscòpico toma de muestra de humor acuoso para reacción en cadena de la polimerasa y angiografía fluoresceínica. Los signos fundoscópicos de la paciente, así como las anomalías detectadas en la angiografía fluoresceínica sugirieron el diagnóstico clínico de síndrome de necrosis retinal aguda. Se confirmó el diagnóstico etiológico viral, semanas después por el resultado de polimerasa. Se practicó la terapéutica médica y fotocoagulación laser focal retiniano correspondiente, asociado a cirugía del desprendimiento de retina mixto mediante vitrectomía pars plana y se logró la re aplicación de la retina.

ABSTRACT The acute necrotizing retinitis is a retinal necrosis of all the retinal layers. It is characterized by fibrinoid necrosis of the vases' wall and vascular occlusion. The case presented is the case of a female patient aged 42 years, who suffers sudden loss of the left eye vision, with a week of evolution. At the ophthalmologic examination it was observed a 2+ vitreous haze, dirty edema of the optic disk, with effacement of all of its margins. There it was an extended white-yellowish retinal exudation in the entire periphery and the equatorial area, associated to intra-retinal hemorrhages. Besides the funduscopic examination, it was taken a sample of the aqueous humor for a polymerase chain reaction (PCR) and fluorescein angiography. The patient's funduscopic signs, and also the anomalies detected in the fluorescein angiography suggested the clinical diagnosis of acute retinal necrosis syndrome. After several weeks, the viral etiologic diagnosis was confirmed by polymerase chain reaction. It was practiced the correspondent medical therapeutics and focal retinal laser coagulation associated to mixt retinal detachment through pars plana vitrectomy; the retina reapplication was achieved.

A Case of Herpes Simplex Keratitis after Descemet Membrane Endothelial Keratoplasty

PURPOSE: We report a case of herpes simplex keratitis after Descemet membrane endothelial keratoplasty (DMEK). CASE SUMMARY: A 67-year-old male underwent DMEK in his left eye due to pseudophakic bullous keratopathy. One week after DMEK, re-bubbling was performed due to partial detachment of Descemet's membrane at the corneal periphery. After re-bubbling, the cornea remained clear and the patient's visual acuity gradually improved. Two months after DMEK, the patient presented with mild discomfort and decreased visual acuity. The cornea showed an irregular, narrow dendrite with an epithelial defect and surrounding opacity. After confirming that Descemet's membrane was attached, the patient was started on oral valacyclovir for suspected herpes keratitis. Herpes simplex virus type 1 was eventually identified by polymerase chain reaction. The corneal lesion resolved after three weeks of antiviral treatment. CONCLUSIONS: Similar to penetrating keratoplasty, DMEK can trigger outbreaks of herpes simplex keratitis. Herpes simplex keratitis should remain on the clinician's differential diagnosis for patients who present with a corneal epithelial irregularity and decreased visual acuity following DMEK.

Corneal Ulcer Caused by Corynebacterium macginleyi

PURPOSE: To report a case of a Corynebacterium macginleyi-infected corneal ulcer of a patient who had been treated for conjunctivitis for more than 3 months. CASE SUMMARY: A 72-year-old female was transferred from a private ophthalmic clinic for evaluation of herpetic keratitis with progressive corneal edema and infiltration in the left eye. She had a history of conjunctival hyperemia and eyeball pain in her left eye 3 months prior to her visit. She was treated with levofloxacin eye drops and acyclovir ointment (Herpesid®, Samil, Co., Ltd. Seoul, Korea). On slit lamp examination, 5.4 × 4.0 mm corneal epithelial defects and stromal infiltrations were observed in the upper to central cornea, and endothelial keratic precipitates were found. Gram positive bacteria were detected on Gram staining and Corynebacterium macginleyi was identified on bacterial cultures from the conjunctiva and cornea. She was treated with topical vancomycin eye drops. After 3 months of treatment, the corneal ulcer was completely resolved, leaving mild superficial opacity on the cornea. CONCLUSIONS: While Corynebacterium macginleyi, normal flora of the conjunctiva, is considered a major causative agent for conjunctivitis and blepharitis, Corynebacterium macginleyi should also be considered a possible cause of slowly progressive keratitis in patients with chronic conjunctivitis.

Clinical Features of Herpes Simplex Keratitis in a Korean Tertiary Referral Center: Efficacy of Oral Antiviral and Ascorbic Acid on Recurrence

PURPOSE: To describe the clinical manifestations of herpes simplex keratitis (HSK) in a tertiary referral center in South Korea and to determine whether ascorbic acid treatment prevents recurrence of herpetic epithelial keratitis. METHODS: This retrospective cohort study included all consecutive patients with herpetic keratitis referred to our center from January 2010 to January 2015. Clinical features, ocular complications, and recurrences were recorded. RESULTS: In total, 149 eyes of the 133 patients (72 male and 61 female) were followed for an average of 24.6 ± 13.2 months. Sixteen (12.0%) patients had bilateral HSK. The most frequent HSK subtype was epithelial keratitis (49.7%), which was followed by stromal keratitis (23.5%). Epithelial keratitis was the most likely subtype to recur. Complications occurred in 122 (81.9%) eyes. The most common complication was corneal opacity. Recurrences were observed in 48 (32.2%) eyes. The recurrence rates were lower in the prophylactic oral antiviral agent group (16 / 48 eyes, 33.3% vs. 49 / 101 eyes, 48.5%) and the ascorbic acid treatment group (13 / 48 eyes, 27.1% vs. 81 / 101 eyes, 70.3%) compared with the groups without medications. Univariate logistic regression analysis revealed that both factors significantly reduced the risk of recurrence (acyclovir: odds ratio, 0.25; 95% confidence intervals, 0.12 to 0.51; ascorbic acid: odds ratio, 0.51; 95% confidence intervals, 0.20 to 0.91). CONCLUSIONS: This retrospective study described the clinical findings of HSK in a tertiary referral center in South Korea. Prophylactic oral antiviral agent treatment and oral ascorbic acid administration may lower the risk of recurrence.

The outcome of penetrating keratoplasty for corneal scarring due to herpes simplex keratitis / O resultado da ceratoplastia penetrante para cicatriz de córnea consequente à ceratite por herpes simplex

ABSTRACT Purpose: To determine the outcomes of penetrating keratoplasty (PK) for treatment of corneal scarring caused by Herpes simplex virus (HSV) keratitis, and whether the corneal scar type affects treatment outcome. Methods: A retrospective analysis of patients who underwent PK for HSV-related corneal scarring between January 2008 and July 2011 was performed. The patients were categorized into two groups. Group 1 consisted of patients with a quiescent herpetic corneal scar and group 2 consisted of patients who developed a corneal descemetocele or perforation secondary to persistent epithelial defects with no active stromal inflammation. The mean follow-up was 21.30 ± 14.59 months. The main parameters evaluated were recurrence of herpetic keratitis, graft rejection, graft failure, visual acuity, and graft survival rate. Results: There were 42 patients in group 1 and 13 in group 2. Preoperative BCVA varied from hand movements to 0.7 logMAR. Postoperatively, 34 patients (61.8%) achieved visual acuity of 0.6 logMAR or more. Recurrence of HSV keratitis was noted in 12 (28.57%) eyes in group 1 and 4 (30.76%) eyes in group 2 (p=0.40). Graft rejection occurred in 4 eyes (9.52%) in group 1 and in 3 (23.07%) eyes in group 2 (p=0.58). The 1-, 2-, and 3-year graft survival rates were 91.9%, 76.0%, and 65.1% in group 1, and 89.5%, 76.0%, and 63.6% in group 2 (p=0.91), respectively. Conclusions: Although there were different recurrence and graft rejection rates for two groups, the graft survival rates at 3 years were similar. According to our results, without inflammation, corneal herpetic scarring with a descemetocele or perforation achieved similar graft survival rates with quiescent herpetic corneal scars.

RESUMO Objetivo: Determinar os resultados da ceratoplastia penetrante (PK) para o tratamento da cicatriz da córnea consequente à ceratite por Herpes simplex vírus (HSV), e se o tipo de cicatriz na córnea afeta o resultado cirúrgico. Métodos: Foi realizada análise retrospectiva dos pacientes, submetidos à PK para a cicatriz da córnea relacionados com o HSV entre janeiro de 2008 e julho de 2011. Os pacientes foram divididos em dois grupos. Grupo 1 consistiu de pacientes que tiveram cicatriz corneana herpética quiescente e grupo 2 consistiu de pacientes que desenvolveram descemetocele ou perfuração córnea secundária a defeitos epiteliais persistentes sem inflamação estromal ativa. O seguimento médio foi de 21,30 ± 14,59 meses. Os principais parâmetros avaliados foram recorrência de ceratite herpética, rejeição de enxerto, falência do enxerto, acuidade visual e taxa de sobrevida do enxerto. Resultados: Foram avaliados 42 pacientes do grupo 1 e 13 doentes do grupo 2. Acuidade visual pré-operatória variou de movimentos das mãos (HM) para 0,7 logMAR. No pós-operatório, 34 pacientes (61,8%) atingiram acuidade visual de 0,6 logMAR ou melhor. Doze olhos (28,57%) tiveram recorrência de HSV ceratite no grupo 1, e quatro olhos (30,76%) tiveram recorrência no grupo 2 (p=0,40). A rejeição do enxerto ocorreu em 4 olhos (9,52%) no grupo 1, e em 3 olhos do grupo 2 (23,07%; p=0,58), taxa de sobrevivência do enxerto foi de 91,9% a 1 ano, 76,0% aos 2 anos e 65,1% aos 3 anos no grupo 1, e 89,5% a 1 ano, 76,0% aos 2 anos e 63,6% aos 3 anos no grupo 2 (p=0,91). Conclusões: Embora diferentes taxas de recorrência e de rejeição do enxerto foram encontradas nos dois grupos, a taxa de sobrevida do enxerto em 3 anos foi semelhantes nos dois grupos. De acordo com nossos resultados, em casos sem inflamação, a cicatriz herpética da córnea com descemetocele ou perfuração demonstra as taxas de sobrevivência do enxerto semelhantes às da cicatriz corneana herpética quiescente.

Formação de membrana fibrótica cicatricial em paciente submetido à ceratoplastia penetrante / Fibrotic scar membrane formation in patients undergoing penetrating keratoplasty

RESUMO O surgimento de uma membrana fibrótica opacificada na córnea transplantada é pouco descrito nas literaturas nacional e mundial. O objetivo é relatar o caso de um paciente com leucoma total de olho esquerdo que foi submetido à ceratoplastia penetrante levando a formação de dupla câmara anterior devido ao surgimento de uma membrana fibrótica cicatricial. Paciente do sexo masculino, 54 anos, com leucoma total secundário a ceratite herpética, diabético há 20 anos, em uso de insulina, com retinopatia diabética não proliferativa. Realizou-se cirurgia de membranectomia com complicações pós-operatória.

ABSTRACT The emergence of opaque fibrotic membrane in transplanted cornea is little described in national and world literature. The goal is to report the case of a patient with leucoma total of left eye that was submitted to the penetrating keratoplasty leading to formation of double anterior chamber due to the emergence of a fibrotic scar membrane. Male patient, 54 years, with total herpetic keratitis secondary leucoma, diabetic for 20 years, using insulin, with non-proliferative diabetic retinopathy. Held membranectomia surgery with postoperative complications.

Clinical efficacy of oral ganciclovir for prophylaxis and treatment of recurrent herpes simplex keratitis / 中华医学杂志(英文版)

<p><b>BACKGROUND</b>Herpes simplex keratitis (HSK) caused by herpes simplex virus 1 (HSV-1), which has high recurrent rate and incidence of severe vision loss, is the leading cause of infectious blindness in the world. The aim was to explore the clinical efficacy of oral ganciclovir (GCV) in the prevention of recurrent HSK.</p><p><b>METHODS</b>A multicenter, prospective, randomized, single-blind, and controlled clinical trial was conducted from April 2010 to June 2013. One hundred seventy-three patients (173 eyes involved) who were diagnosed as recurrent HSK definitely, including stromal keratitis and corneal endotheliitis, were divided into three groups randomly: negative control (placebo) group was topically administered with 0.15% GCV ophthalmic gel, 4 times per day and 0.1% fluorometholone eye drops, 3 times per day until resolution of HSK; positive control acyclovir (ACV) group was topically adopted the same ophthalmic gel and eye drops and additionally received oral ACV 400 mg 5 times a day for 10 weeks and followed by 400 mg 2 times per day for 6 months; test GCV group was topically adopted the same treatment as negative control group and additionally received oral GCV 1000 mg 3 times per day for 8 weeks. The symptoms and signs were evaluated before and after the therapy 1 st week, 2 nd week and then followed up every 2 weeks until recovery. Furthermore, we followed up recurrence of HSK for every 3 months after recovery and then assessed the cure time, recurrent rate and adverse reactions.</p><p><b>RESULTS</b>One hundred and seventy-three patients were followed up 7-48 months (mean 32.1 ± 12.3 months), but 34 patients were failed to follow-up. The cure time was 12.1 ± 4.3, 11.9 ± 4.0 weeks in negative control (placebo) group and positive control ACV group respectively (P = 0.991), which was longer than that in test GCV group (8.6 ± 2.8 weeks) and there was a significant difference between test GCV group and negative control (placebo) group or positive control ACV group (P = 0.000). Furthermore, the recurrent rate was higher in negative control (placebo) group (47.3%) than that in positive control group ACV (26.7%) and test GCV group (17.2%), and there was a great significant difference among the three groups (P = 0.007), but there was no significant difference between positive control ACV group and test GCV group (P = 0.358). In addition, there was no obvious adverse reaction expect neutropenia (only one patient in test GCV group).</p><p><b>CONCLUSION</b>Short-term oral GCV could cure recurrent HSK and endotheliitis, shorten the course, reduce recurrent rate of HSK and have confirmed safety.</p>

A Case of Phoma glomerata Keratitis Occurred in Recurrent Herpes Simplex Keratitis Cicatrix

PURPOSE: To report a case of Phoma glomerata keratitis occurring in recurrent herpes simplex keratitis cicatrix. CASE SUMMARY: A 63-year-old male patient was admitted to our hospital with complaints of abrupt visual deterioration and ocular pain in his left eye. He was treated for recurrent herpes simplex keratitis in the same eye 12 years prior. Because central desmatocele was observed as a result of advanced corneal stromal melting, Gram staining, Potassium Hydroxide (KOH) mount, and culture were performed in corneal scrape specimens. On microbiological evaluation, a Phoma species was detected and Phoma glomerata was diagnosed using DNA sequencing method. Two consecutive amniotic membrane transplantations were performed with topical antifungal agents. The lesion was not improved when using topical amphotericin B and natamycin eyedrops, thus fluconazole eyedrops were used additionally. The corneal infection was resolved with central thick opacification. CONCLUSIONS: In the present case, herpetic keratitis was the main underlying causative factor because the patient had no past history of trauma. When diverse appearances of keratitis occur in herpes simplex keratitis patients, clinicians need to consider the concurrence of fungal infection, especially Phoma glomerata, a rare fungal organism.

Ranibizumab Injection for Corneal Neovascularization Refractory to Bevacizumab Treatment

Vascular endothelial growth factor inhibitor is an emerging therapeutic modality for various ocular diseases with neovascularization (NV). However, for corneal NV, controversy remains regarding whether bevacizumab or ranibizumab is superior. A 32-year-old female diagnosed with herpetic keratoconjunctivitis with refractory corneal NV despite two previous subconjunctival and intrastromal bevacizumab injections, received two subconjunctival and intrastromal ranibizumab injections. Six months postoperatively, there was significant regression of the neovascular area and vessel caliber. Here, the authors report a case of improvement in corneal NV with subconjunctival and intrastromal ranibizumab injections, which was previously refractory to bevacizumab injection. The findings may suggest a new prospect in treating corneal NV.

Alopecia following oral acyclovir for the treatment of Herpes simplex keratitis

The authors report acyclovir-induced alopecia in a patient treated for herpetic keratouveitis. A 32-years-old female was diagnosed with herpetic keratouveitis. She was placed on prednisolone acetate [l%] suspension four times a day, atropine sulfate [1%] thrice a day and oral acyclovir 400 mg twice-daily Three weeks following oral acylovir, keratouveitis improved, but she developed alopecia without any drug eruptions. Oral acyclovir was discontinued. Three months later, alopecia completely resolved. Alopecia may be considered a possible complication following oral acyclovir

Comparative Analysis of Polymerase Chain Reaction Assay for Herpes Simplex Virus 1 Detection in Tear

PURPOSE: To comparatively analyze the methodological efficacy of the polymerase chain reaction (PCR) assay for herpes simplex virus 1 (HSV) detection in tears. METHODS: This retrospective study reviewed the medical records of 115 patients who were clinically diagnosed with herpes keratitis, and their tear samples were collected for HSV detection. PCR positive rates were analyzed for their dependence on the PCR primers used (conventional PCR primer vs. nested PCR primer), the tear collecting method used (micropipetting vs. collection with schirmer strip), the disease manifestation and the patient's previous medication history. RESULTS: HSV DNA was detected in 23 out of 115 (20%) tear samples. The PCR positive rate in tear samples did not differ depending on the PCR primer or tear collection method used. Typical epithelial lesions showed a higher positive rate (31.4%) than atypical epithelial lesions (10.9%). The previous history of the antiviral agent seemed to affect the PCR positive rate. CONCLUSIONS: Although the PCR positive rate was not dependent on the tear collection method or primers, HSV detection in tears using PCR was shown to be a supplementary diagnostic test in typical and atypical herpes epithelitis.

A Case of Herpetic Simplex Keratitis after Application of 0.015% Tafluprost Eye Drops

PURPOSE: To report a single case of herpes simplex keratitis after application of 0.015% tafluprost eye drops. CASE SUMMARY: A 68-year-old male presented with left eye discomfort, epiphora, decreased visual acuity and hyperemia. The patient was diagnosed with glaucoma 6 weeks prior and started on 0.015% tafluprost eye drops in left eye and 0.15% brimonidine in both eyes. On slit lamp examination dendritic epithelial defect was observed and the patient was diagnosed with herpes simplex keratitis. The 0.015% tafluprost treatment was discontinued and 0.15% brimonidine was applied in both eyes twice a day. The herpetic keratitis in his left eye resolved completely in 2 weeks with acyclovir ointment and oral antiviral agent. No further recurrence was observed in the following 3 months.

A Case of Herpes Simplex Keratitis after Descemet Stripping Automated Endothelial Keratoplasty

PURPOSE: To report a case of herpes simplex keratitis after descemet stripping automated endothelial keratoplasty (DSAEK). CASE SUMMARY: A 66-year-old male underwent DSAEK in his right eye due to bullous keratopathy after cataract surgery. The corneal epithelium which was removed during surgery was healed, but the patient was experiencing pain and decreased visual acuity in his right eye 1 month after surgery. Increasing corneal epithelial defects and corneal edema were observed on slit-lamp examination. Therapeutic soft contact lenses and artificial tears were used for treatment but were not effective, thus amniotic membrane transplantation was performed. Three months after transplantation, the epithelial defect appeared as a geographic ulcer suspecting to be herpes simplex keratitis; therefore, ganciclovir ophthalmic ointment and oral acyclovir were administered. Six months after antiviral therapy, the epithelial lesion of herpes simplex keratitis completely disappeared, leaving only mild corneal opacity. CONCLUSIONS: If corneal epithelial defects are persistent after DSAEK in patients even with no past history of herpes simplex keratitis, herpes simplex keratitis should be considered in the differential diagnosis.

Necrose retiniana aguda por presumível etiologia viral por herpes simples resultando em endoftalmite: relato de caso / Acute retinal necrosis due to herpes simplex resulting in endofthalmitis: case report

A necrose retiniana aguda é uma rara e devastadora retinite necrotizante, que pode ser causada pelo vírus herpes simples tipo 1 ou 2. Afeta tipicamente pacientes saudáveis de todas as idades. Este estudo é um relato de caso de um paciente de 18 anos, previamente hígido, que apresentou necrose aguda de retina por presumível etiologia viral por herpes simples, e descreve sua apresentação clínica e ultrassonográfica. Por não ter sido diagnosticado e tratado precocemente, a necrose retiniana aguda cumpriu sua história natural e evoluiu para um quadro compatível com endoftalmite.

The acute retinal necrosis is a rare and devastating necrotizing retinitis, which can be caused by the herpes simplex virus type 1 or 2. It typically affects healthy patients of all ages. This study report a case of 18 year-old healthy male patient, with the the diagnosis of the acute retinal necrosis due to herpes simplex, and presents its clinical and ultrassonographic features. The acute retinal necrosis results in endofthalmitis because of lack of early diagnosis and therapy.

Effects of honey to acyclovir in the rabbit eye transport kinetics / 中国中药杂志

<p><b>OBJECTIVE</b>Using pharmacokinetics to explore the mechanism of honey to enhance the efficacy of acyclovir (ACV) treatment of herpes simplex keratitis (HSK), providing the basis for combination of the prescription of two drugs and dosage regimen designed.</p><p><b>METHOD</b>Single dosages of 5% honey and 0% honey Meyasu eye ointment are injected into rabbit eyes. The aqueous humor of rabbit eye is measured at different times, specifically the content of ACV in aqueous humor by HPLC. Mathematical models are established, from which pharmacokinetic parameters are extracted and compared by mathematics and statistics methods.</p><p><b>RESULT</b>Both the 5% and 0% honey Meyasu eye ointment in rabbit eyes are belong to a two-compartment model. The absorption half-life of the 5% Meyasu eye ointment in aqueous humor is as 2.30 times longer, the distribution half-life is 2.12 times longer, the peak concentration is 1.17 times longer, the peak time is 1.36 times longer, AUC is 1.41 times longer when compared to the 0% Meyasu eye ointment.</p><p><b>CONCLUSION</b>Honey can significantly increase the ACV concentration and bioavailability in the eye, extend the action time of ACV in target cells and increase the retention capacity of ACV in the target tissue; thereby improving treatment success.</p>