Evaluation of Peripapillary and Macular Vascular Flow Changes with OCT-A in Patients with Superficial Optic Disk Drusen.

Objectives: The purpose of this study was to compare the peripapillary and macular vascular flow changes between healthy adults and adult patients with superficial optic disk drusen (ODD), as evaluated by optical coherence tomography angiography (OCT-A). Methods: In this retrospective study, 44 eyes of 22 patients with superficial ODD followed-up in our neuro-ophthalmology unit and 54 eyes of 27 healthy individuals admitted to our clinic for routine ophthalmological examination were included in the study. The superior, inferior, nasal, and temporal radial peripapillary capillary plexus (RPC) vessel density (VD) values; superior, inferior, nasal, and temporal parafoveal and foveal region superficial capillary plexus (SCP) and deep capillary plexus (DCP) VD values; and choriocapillaris flow (CCF) area and foveal avascular zone area were evaluated by OCT-A. Results: There was no statistically significant difference between groups in terms of age and sex. While there was a significant decrease in the temporal RPC VD values in cases with ODD (p=0.02), no significant difference was observed in other quadrants. No significant differences in either parafoveal zone four quadrant, foveal SCP and DCP VD values, or foveal avascular zone measurements were found between groups, while CCF area values were significantly higher in the study group (p=0.012). Conclusion: Compared to healthy controls, our results showed a decrease in the RPC temporal quadrant VD values, and an increase in CCF area in cases with superficial ODD. To evaluate the effects of ODD on optic nerve head and macular perfusion, and to understand its underlying mechanisms and secondary complications, longer follow-up studies with larger case series are needed.

Peripapillary vessel density in pediatric cases with buried optic disk drusen.

BACKGROUND: To evaluate the retinal nerve fiber layer (RNFL) and peripapillary vascular density (VD) changes in the pediatric group with optic disk drusen (ODD). METHODS: Sixty eyes of 30 patients with buried ODD referred by the pediatric or neurology physicians to ophthalmology clinic with a preliminary diagnosis of papillary edema were included in this retrospective study. Sixty eyes of 30 healthy children were included as the control group. Thickness of RNFL (micrometer) and VD percentages (%) of the superior, inferior, nasal, and temporal quadrants of the peripapillary region of all cases were evaluated with optical coherence tomography angiography (OCT-A) device. RESULTS: The study and control groups were homogeneous in terms of age and gender. VD values were significantly lower in the study group for all four quadrants, when compared to controls (p < 0.001, p < 0.001, p = 0.003, and p < 0.001, for inferior, superior, nasal, and temporal quadrants, respectively. For RFNL thickness measurements, a significant difference between groups was only evident for the nasal quadrant, where the study group had significantly higher nasal RFNL thickness (p = 0.001). CONCLUSION: This study detected decreases in peripapillary VD values in all quadrants and peripapillary RNFL thickening in nasal quadrant in pediatric cases with buried drusen compared to healthy controls. Further studies are necessary to reveal the effects of drusen pathogenesis on optic nerve head perfusion and to understand the underlying mechanisms of related complications.

Evaluation of retinal neurovascular structures by optical coherence tomography and optical coherence tomography angiography in children and adolescents with type 1 diabetes mellitus without clinical sign of diabetic retinopathy.

BACKGROUND: The aim of the study was to investigate whether retinal neurovascular structural impairment in children and adolescents with type 1 diabetes mellitus (T1D) without clinical signs of diabetic retinopathy (DR) could be detected early via optical coherence tomography (OCT) and OCT angiography (OCTA). METHODS: In the current prospective, cross-sectional, observational clinical study children and adolescents with T1D without DR were evaluated between December 2018 and May 2019. Retinal neurovascular structures in the macular and optic disc regions were examined in detail and quantitatively assessed using OCT and OCTA. Data from subjects with T1D were compared with data from healthy controls. Whether retinal neurovascular structural changes were significantly associated with puberty stage, diabetes duration, and HbA1c level was also investigated. RESULTS: The T1D group included 110 eyes and the control group included 84 eyes. In the T1D group the mean inside disc vessel density (VD) was significantly lower than that of the control group (p < 0.001), as was the mean superior temporal disc VD (p < 0.043). Puberty stage was significantly associated with retinal thickness, parafoveal superficial capillary plexus VD, and peripapillary retinal nerve fiber layer thickness (p < 0.05). Diabetes duration and HbA1c level was significantly correlated with retinal layer thickness, foveal avascular zone diameter, and superficial and deep capillary plexus VDs. CONCLUSION: In children and adolescents with T1D without clinical signs of DR, the VD of the disc region is affected earlier than the macular region. In these patients, early neurovascular impairment can be detected non-invasively via OCT and OCTA.

Prosthesis-socket volume imbalance and dermofat graft rehabilitation in patients with an anophthalmic socket / Os problemas causados pelo desequilíbrio do volume da cavidade da prótese, nos casos de cavidades anoftálmicas, e a sua reabilitação com o enxerto de dermofat

ABSTRACT Purposes: To identify problems caused by prosthesis-socket volume imbalances in anophthalmic sockets; and to evaluate rehabilitation with dermofat graft as a solution. Methods: We retrospectively reviewed medical records of patients operated in our clinic (between May 2011 and June 2016) with dermofat grafts to treat anophthalmic socket-related problems. During the preoperative examinations, ophthalmologists recorded the presence of eyelid problems due to the socket volume deficit, upper and lower fornix deficiency, deepening in the upper eyelid sulcus, epiphora and secretion, lower eyelid laxity, ptosis, entropion, and ectropion. Following the surgical repair, new prosthesis suitable for the resulting socket area were implemented for all the patients. The mean follow-up period was 27.42±16 months (ranging from 10-62 months). On the last control examinations, ophthalmologists recorded solved and unsolved socket problems that were present preoperatively. Results: We included 16 men and 5 women in this study. The mean age was 38.3 ± 18.4 years (range, 5-75 years). The mean duration of preoperative prosthesis use was 9.4 ± 6.8 years (range, 1-30 years). Preoperatively, 7 patients had only orbital volume deficits, and 14 had socket volume displacements in addition to the volume deficits. After the dermofat graft implantations, the remaining deficits were corrected during another surgical session: 6 patients underwent ptosis corrections, 5 lateral canthal suspensions, 5 lower fornix with mucosal graft formations, and 2 upper fornix formations with mucosal grafts. All patients were able to use prosthesis postoperatively. Conclusion: The use of dermofat grafts to correct anophthalmic socket problems caused by orbital volume deficits or volume displacements is an effective, reliable, and reproducible surgical method.

RESUMO Objetivos: Identificar os problemas causados pelo desequilíbrio do volume da cavidade da prótese em cavidades anoftálmicas, e avaliar a reabilitação com enxerto de dermofato como solução. Métodos: Revisamos retrospectivamente os prontuários de pacientes operados em nossa clínica (entre maio de 2011 e junho de 2016) com enxertos de dermofato para tratar problemas relacionados a cavidades anoftálmicas. Durante os exames pré-operatórios, os oftalmologistas registraram a presença de problemas palpebrais devido ao déficit de volume, deficiência de fórnice superior e inferior, aprofundamento no sulco palpebral superior, a epífora e secreção, flacidez palpebral inferior, ptose, entrópio e ectrópio. Após a cirurgia, novas próteses adequadas para a área de encaixe foram implementadas em todos os pacientes. O tempo médio de acompanhamento foi de 27,42 ± 16 meses (variando de 10 a 62 meses). Nos últimos exames de controle, os oftalmologistas registraram problemas corrigidos e não corrigidos da cavidade que estavam presentes no pré-operatório. Resultados: Foram incluídos 16 homens e 5 mulheres neste estudo. A média de idade foi de 38,3 ± 18,4 anos (variação de 5-75 anos). A duração média do uso de prótese pré-operatória foi de 9,4 ± 6,8 anos (variação de 1 a 30 anos). No pré-operatório, 7 pacientes apresentavam apenas déficit orbitais e 14 tinham desvios de volume, além dos déficits de volume. Após os implantes de enxerto de dermoadipação, os déficits remanescentes foram corrigidos durante outra sessão cirúrgica: 6 pacientes foram submetidos a correção de ptose, 5 suspensões de cantal lateral, 5 fórnix inferior com enxerto de mucosa e 2 formações de fórnice superior com enxerto de mucosa. Todos os pacientes foram capazes de usar prótese no pós-operatório. Conclusão: A utilização de enxertos de dermofato para corrigir problemas de anoftalmia causados por déficits de volume orbital ou deslocamento de volume é um método cirúrgico eficaz, confiável e reprodutível.

Prosthesis-socket volume imbalance and dermofat graft rehabilitation in patients with an anophthalmic socket.

PURPOSES: To identify problems caused by prosthesis-socket volume imbalances in anophthalmic sockets; and to evaluate rehabilitation with dermofat graft as a solution. METHODS: We retrospectively reviewed medical records of patients operated in our clinic (between May 2011 and June 2016) with dermofat grafts to treat anophthalmic socket-related problems. During the preoperative examinations, ophthalmologists recorded the presence of eyelid problems due to the socket volume deficit, upper and lower fornix deficiency, deepening in the upper eyelid sulcus, epiphora and secretion, lower eyelid laxity, ptosis, entropion, and ectropion. Following the surgical repair, new prosthesis suitable for the resulting socket area were implemented for all the patients. The mean follow-up period was 27.42±16 months (ranging from 10-62 months). On the last control examinations, ophthalmologists recorded solved and unsolved socket problems that were present preoperatively. RESULTS: We included 16 men and 5 women in this study. The mean age was 38.3 ± 18.4 years (range, 5-75 years). The mean duration of preoperative prosthesis use was 9.4 ± 6.8 years (range, 1-30 years). Preoperatively, 7 patients had only orbital volume deficits, and 14 had socket volume displacements in addition to the volume deficits. After the dermofat graft implantations, the remaining deficits were corrected during another surgical session: 6 patients underwent ptosis corrections, 5 lateral canthal suspensions, 5 lower fornix with mucosal graft formations, and 2 upper fornix formations with mucosal grafts. All patients were able to use prosthesis postoperatively. CONCLUSION: The use of dermofat grafts to correct anophthalmic socket problems caused by orbital volume deficits or volume displacements is an effective, reliable, and reproducible surgical method.

Peripapillary choroidal thickness in contralateral eyes after evisceration of diseased eyes / Espessura coroide peripapilar de olhos contralaterais após evisceração do olho doente

ABSTRACT Purpose: To evaluate peripapillary choroidal thickness changes in contralateral eyes of patients who had undergone evisceration of their diseased eyes. Methods: In this retrospective study, peripapillary choroidal thickness parameters in 34 eyes of 34 patients who had undergone diseased-eye evisceration between March 2014 and May 2016 were evaluated using spectral domain optical coherence tomography. The scans were manually delineated to identify the principal surfaces of Bruch's membrane, the Bruch's membrane opening, and the anterior sclera. Peripapillary choroidal thickness was measured between the Bruch's membrane and the anterior sclera at increasing distance away from the Bruch's membrane opening. The mean peripapillary choroidal thickness values in the contralateral eyes of the patients and those of the control group were compared. Results: The mean peripapillary choroidal thickness was higher in the contralateral eyes of the patients compared with that of normal eyes at all distances from the Bruch's membrane opening. Conclusion: Increased peripapillary choroidal thickness was noted in the contralateral eyes of the patients, potentially resulting in a thicker choroid. Although further investigation is required to determine the cause, these findings indicate the presence of a compensatory factor in the contralateral eyes.

RESUMO Objetivo: Avaliar as alterações da espessura coroide peripapilar em olhos contralaterais de pacientes submetidos à evisceração do olho doente. Métodos: Neste estudo retrospectivo, parâmetros da espessura coróide peripapilar de 34 olhos de 34 pacientes submetidos à evisceração, entre março de 2014 e maio de 2016, foram avaliados com tomografia de coerência óptica de domínio espectral. As varreduras foram manualmente delineadas para identificar as principais superfícies da membrana de Bruch, a abertura da membrana de Bruch e a esclera anterior. A espessura coroide peripapilar foi medida entre a membrana de Bruch e a esclera anterior a uma distância crescente da abertura da membrana de Bruch. Compararam-se os valores médios da espessura coroide peripapilar dos olhos contralaterais dos pacientes e do grupo controle. Resultados: A espessura coroide peripapilar média foi mais espessa nos olhos contralaterais dos pacientes, quando comparada com os olhos normais, em todas as distâncias da abertura da membrana de Bruch. Conclusão: O aumento da espessura coroide peripapilar foi notado nos olhos contralaterais dos pacientes. O espessamento da coroide pode ser resultante do distúrbio. Embora seja necessária uma investigação mais aprofundada para determinar a causalidade, esses achados podem apontar para um fator compensatório dos olhos contralaterais.

Peripapillary choroidal thickness in contralateral eyes after evisceration of diseased eyes.

PURPOSE: To evaluate peripapillary choroidal thickness changes in contralateral eyes of patients who had undergone evisceration of their diseased eyes. METHODS: In this retrospective study, peripapillary choroidal thickness parameters in 34 eyes of 34 patients who had undergone diseased-eye evisceration between March 2014 and May 2016 were evaluated using spectral domain optical coherence tomography. The scans were manually delineated to identify the principal surfaces of Bruch's membrane, the Bruch's membrane opening, and the anterior sclera. Peripapillary choroidal thickness was measured between the Bruch's membrane and the anterior sclera at increasing distance away from the Bruch's membrane opening. The mean peripapillary choroidal thickness values in the contralateral eyes of the patients and those of the control group were compared. RESULTS: The mean peripapillary choroidal thickness was higher in the contralateral eyes of the patients compared with that of normal eyes at all distances from the Bruch's membrane opening. CONCLUSION: Increased peripapillary choroidal thickness was noted in the contralateral eyes of the patients, potentially resulting in a thicker choroid. Although further investigation is required to determine the cause, these findings indicate the presence of a compensatory factor in the contralateral eyes.

Anterior tarsal flap rotation combined with anterior lamellar reposition in the repair of cicatricial upper eyelid entropion.

PURPOSE: This study aimed to share the results of patients who underwent anterior tarsal flap rotation combined with anterior lamellar reposition because of cicatricial upper eyelid entropion, and to determine the effectiveness and reliability of this surgical technique. METHODS: Fifteen eyes of 11 patients (2 right eyes; 5 left eyes; and 4 bilateral eyes) on whom we performed anterior tarsal flap rotation surgery combined with anterior lamellar reposition because of cicatricial entropion were included in this study. The medical records of the patients were analyzed retrospectively, and the causes of cicatricial entropion as well as the preoperative and postoperative ophthalmic examination findings were recorded. Normal anatomical appearance and function of eyelid were considered to have been achieved. RESULTS: The mean age was 59.81 ± 18 years. The mean follow-up period was 21.72 ± 14 months (range, 5-43 months). The causes of cicatricial entropion were postoperative cicatrices development due to multiple electrolyzes for trichiasis and/or distichiasis in 7 eyes, trachoma in 6 eyes, and trauma in 2 eyes. Irritation and watering were detected in all patients preoperatively, whereas corneal opacity and erosion were detected in 10 patients and epithelial erosion was detected in one patient. Full anatomical and functional success was achieved for all patients. CONCLUSION: Anterior tarsal flap rotation combined with anterior lamellar reposition in the repair of cicatricial entropion was found to be an effective and reliable alternative surgical procedure.

Multimodal Imaging Including Optical Coherence Tomography Angiography of a Patient With Argus II Retinal Prosthesis One Year After Implantation.

A 58-year-old man with end-stage retinitis pigmentosa (RP) and visual acuity of light perception in both eyes received simultaneous phacoemulsification with intraocular lens implantation and implantation of the Argus II Retinal Prosthesis System (Second Sight Medical Products, Sylmar, CA) to his right eye 1 year ago. He accomplished the fitting and rehabilitation sessions, and no extraocular or intraocular complications were encountered perioperatively, postoperatively, or during the follow-up. The patient used the prosthesis actively for 2.5 to 3 hours per day. In this report, the authors compare the multimodal imaging findings including optical coherence tomography angiography of the chronic electrically stimulated retinal prosthesis implanted eye with the fellow eye. [Ophthalmic Surg Lasers Imaging Retina. 2018;49:55-59.].

Anterior tarsal flap rotation combined with anterior lamellar reposition in the repair of cicatricial upper eyelid entropion / Rotação anterior de retalho tarsal combinada com reposição laminar anterior no reparo do entrópio cicatricial das pálpebras superiores

ABSTRACT Purpose: This study aimed to share the results of patients who underwent anterior tarsal flap rotation combined with anterior lamellar reposition because of cicatricial upper eyelid entropion, and to determine the effectiveness and reliability of this surgical technique. Methods: Fifteen eyes of 11 patients (2 right eyes; 5 left eyes; and 4 bilateral eyes) on whom we performed anterior tarsal flap rotation surgery combined with anterior lamellar reposition because of cicatricial entropion were included in this study. The medical records of the patients were analyzed retrospectively, and the causes of cicatricial entropion as well as the preoperative and postoperative ophthalmic examination findings were recorded. Normal anatomical appearance and function of eyelid were considered to have been achieved. Results: The mean age was 59.81 ± 18 years. The mean follow-up period was 21.72 ± 14 months (range, 5-43 months). The causes of cicatricial entropion were postoperative cicatrices development due to multiple electrolyzes for trichiasis and/or distichiasis in 7 eyes, trachoma in 6 eyes, and trauma in 2 eyes. Irritation and watering were detected in all patients preoperatively, whereas corneal opacity and erosion were detected in 10 patients and epithelial erosion was detected in one patient. Full anatomical and functional success was achieved for all patients. Conclusion: Anterior tarsal flap rotation combined with anterior lamellar reposition in the repair of cicatricial entropion was found to be an effective and reliable alternative surgical procedure.

RESUMO Objetivo: Compartilhar os resultados dos pacientes submetidos à rotação de retalho tarsal anterior, combinados com a reposição lamelar anterior devido à entrópio cicatricial da pálpebra superior e determinar a eficácia e a confiabilidade desta técnica cirúrgica. Métodos: Foram incluídos neste estudo quinze olhos de 11 pacientes em quem realizamos cirurgia de rotação de retalho tarsal anterior combinada com reposição lamelar anterior devido ao entrópio cicatricial. Os registros médicos dos pacientes foram analisados retrospectivamente e as causas da entrópio cicatricial, bem como os achados do exame oftalmológico pré-operatório e pós-operatório foram registrados. A integridade anatômica e funcional da pálpebra foi considerada como sucesso cirúrgico. Resultados: A idade média foi de 59,81 ± 18 anos. O período médio de seguimento foi de 21,72 ± 14 meses (intervalo 5-43 meses). As causas da entrópio cicatricial foram o desenvolvimento de cicatrizes pós-operatórias devido a eletrólises múltiplas para triquíase e/ou distiquiase em 7 olhos, tracoma em 6 olhos e trauma em 2 olhos. Todos os pacientes foram tiveram irritação e lacrimejamento pré-operatório, enquanto que 10 pacientes apresentavam opacidade e erosão da córnea e 1 paciente apresentava apenas erosão epitelial. O sucesso total anatômico e funcional foi alcançado em todos os casos. Conclusão: A rotação do retalho tarsal anterior combinada com a reposição lamelar anterior no reparo da entrópio cicatricial é um procedimento cirúrgico alternativo efetivo e confiável.