Complicaciones posoperatorias de la facoemulsificación asociada a trabeculectomía gonioasistida modificada con tijeras / Posoperative complications of phacoemulsification associated with modified gonio-assisted trabeculectomy with scissors

Objetivo: Evaluar la seguridad de facoemulsificación asociada a la trabeculectomía gonioasistida modificada con tijeras. Métodos: Estudio experimental de intervención en 103 ojos (103 pacientes) con glaucoma primario de ángulo abierto. Se realizó facoemulsificación y trabeculectomía gonioasistida modificada con tijeras (51 ojos, casos) y facoemulsificación- trabeculectomía estándar (52 ojos, controles). En los casos se requirió tijera y pinza vítreo-retinal y se resecó trabéculo por abordaje interno. Se evaluó la agudeza visual, el astigmatismo inducido, la pérdida de células endoteliales y la aparición de complicaciones quirúrgicas en ambos grupos a los tres meses de seguimiento posoperatorio. Resultados: La AVSC se incrementó en ambos grupos a los tres meses postoperatorios. Sin embargo, fue mayor para la FACO-TGAM (0,81 ± 0,16vs. 0,71 ± 0,16), con diferencias significativas (p= 0,002). El astigmatismo inducido fue significativamente mayor en el grupo control (0,53 ± 1,14Dvs.1,8 ± 1,20D (p< 0.001). Las complicaciones quirúrgicas posoperatorias fueron más frecuentes en el grupo control (57 por ciento vs. 73 por ciento p= 0,14). La pérdida de células endoteliales no mostró diferencias significativas (p= 0,82). Conclusiones: La recuperación visual y el menor número de complicaciones ubican la facoemulsificación y trabeculectomía gonioasistida modificada con tijeras como técnica de elección para el tratamiento de pacientes con catarata y el glaucoma primario de ángulo abierto(AU)

Objective: To evaluate the safety of phacoemulsification associated with modified gonio-assisted trabeculectomy with scissors. Methods: Experimental intervention study in 103 eyes (103 patients) with primary open-angle glaucoma. Phacoemulsification and modified gonioassisted trabeculectomy with scissors (51 eyes, cases) and standard phacoemulsification-trabeculectomy (52 eyes, controls) were performed. In the cases, scissors and vitreoretinal forceps were required and trabeculum was resected by internal approach. Visual acuity, induced astigmatism, loss of endothelial cells and the appearance of surgical complications were evaluated in both groups at three months postoperative follow-up. Results: The uncorrected visual acuity increased at three postoperative months in both groups, however it was higher for the PHACO-TGAM (0.81 ± 0.16 vs 0.71 ± 0.16); with significant differences (p = 0.002). Induced astigmatism was significantly higher in the control group (0.53 ± 1.14 D vs. 1.8 ± 1.20 D, (p < 0.001). Postoperative surgical complications were more frequent in the control group (57 percent vs 73 pèrcent, p = 0.14), the endothelial cell loss did not show significant differences (p = 0.82). Conclusions: the visual recovery and the lower number of complications place phacoemulsification and modified gonio-assisted trabeculectomy with scissors as the technique of choice for the treatment of patients with cataract and primary open-angle glaucoma(AU)

Compassionate and standard operating procedure-based counseling and practice are essential in high-risk infantile anesthesia and managing death in eye surgery

Physicians have to play the role of a team leader and counselor and take written informed consent for high?risk surgeries in many cases. This is the first step toward initiating a mutually trustworthy relationship with the patient and family. The situation is more sensitive when vulnerable patients like small premature babies or the elderly are under consideration. In the event of a death, leadership and processes in place become extremely critical. We share our experience and practice pattern during this process, especially suited to India, but the broad principles would apply to most human situations. Hopefully, some of these can be incorporated into the existing training curriculum for team building and the art of effective physician?patient communication that should be intricately woven into the curriculum for the Science of Ophthalmic care.

Preliminary application of low-temperature plasma ablation combined with drug therapy in the treatment of infectious corneal ulcer / 国际眼科杂志(Guoji Yanke Zazhi)

@#AIM: To observe the preliminary therapeutic effect of low-temperature plasma ablation combined with drugs in the treatment of infectious corneal ulcer. <p>METHODS: Retrospective case study. A total of 30 eyes were selected from 30 patients with infectious corneal ulcer who were admitted to the ophthalmology department of the First Affiliated Hospital of Chongqing Medical University from December 2018 to March 2020. All patients had positive etiological examination and ulcer or infiltration depth ≤1/2 of corneal thickness. Local low-temperature plasma ablation combined with eye drops was applied to the cases whose corneal ulcer did not improve significantly or corneal infiltration continued to worsen after 3-7d of conventional anti-infection treatment. Postoperative follow-up was 3-6mo to observe the clinical effect.<p>RESULTS: After low-temperature plasma ablation combined with eye drops treatment, the infection in 12 eyes of 12 patients with bacterial corneal ulcer was controlled in 11 eyes of 11 patients and ulcer healed gradually. Keratoplasty was performed in 1 eye due to aggravated infiltration. Among 18 eyes of 18 cases with fungal corneal ulcer receiving low-temperature plasma ablation and combined local antifungal treatment, 13 eyes of 13 cases gradually healed; 2 eyes of 2 patients showed lichen-like changes after the first ablation, but the lesion area was significantly smaller than before and gradually improved after re-ablation treatment; there was no effect in 3 eyes of 3 cases and keratoplasty was finally performed. All the patients were followed up for 3-6mo, 26 eyes of 26 patients were cured and the infection had no recurrence with remaining corneal pannus or leukoplakia. Confocal microscopy did not detect mycelium in cured patients with fungal infection.<p>CONCLUSION: In this preliminary observation, low-temperature plasma ablation combined with drug therapy can effectively control infection, promote healing and improve visual acuity for infective corneal ulcer with infiltration less than 1/2 corneal thickness, and no obvious complications were observed.

Negative pressure drainage relieves respiratory discomfort for patients with medical face masks under ocular surgeries during COVID-19 / 国际眼科杂志(Guoji Yanke Zazhi)

@#AIM:To report our precaution practices for ocular surgeries under local anesthesia during COVID-19 outbreak and evaluate the respiration situation among the patients with medical face masks under ocular surgeries.<p>METHODS:Sixty Chinese patients needed eye surgery treatment were recruited and given medical face masks as one of the COVID-19 precaution practices during eye surgery with local anesthesia. Oxygen supplementation and negative pressure drainage were applied to relieve the potential respiratory discomfort, and the respiratory comfort score was evaluated.<p>RESULTS:Patients with medical face masks experienced mild to moderate respiratory discomfort with an overall mean score of 2.34±0.73. Supplementation of oxygen together with negative pressure drainage relieved this discomfort(overall mean score of 0.15±0.75; <i>P</i><0.001). There is no gender and operation time difference on respiratory discomfort or discomfort relieve. Failure in negative pressure drainage led to severe respiratory discomfort.<p>CONCLUSION:Negative pressure drainage could maintain the respiratory circulation in patients with medical face mask under eye surgery with local anesthesia. Application of medical face masks in patients under surgeries is recommended to protect the medical practitioners during the operations within COVID-19 outbreak.

Outcomes of scleral buckle technique performed by trainee doctors in retinal detachment / 国际眼科杂志(Guoji Yanke Zazhi)

@#AIM: To evaluate the outcomes of patients operated for retinal detachment by scleral buckle technique done by trainee doctors pursuing postgraduate course in ophthalmology.<p>METHODS: This study was a non-comparative retrospective case series to evaluate the demography, clinical features and outcomes of patients underwent rhegmatogenous retinal detachment(RRD)repaired by scleral buckle technique from July 2017 to February 2018 at a tertiary care center in India. Records of all these patients were screened. Statistical analyses were performed and using Fisher's exact test, Mann-Whitney test and Nominal Logistic regression.<p>RESULTS: Totally of 41 patients were included out of which, 32(78%)were males and 9(22%)were females. In our study primary anatomical success rate was 95%, with significant visual gain. Postoperative complications were raised intraocular pressure(<i>n</i>=2), new breaks(<i>n</i>=2)and re-detachment in 2 patients which was successfully managed by pars plana vitrectomy(PPV)with internal tamponade and laser.<p>CONCLUSION: The study showed that scleral buckle surgeries done by trainee doctors under supervision can achieve a high success rate in patients of RRD both in terms of postoperative anatomical success, visual acuity and complication rates. Thus, scleral buckle surgery can be an acceptable primary procedure for trainee doctors for management of RRD in selected cases despite the various treatment options now available.

Comparison between ropivacaine and bupivacaine in deep topical fornix nerve block anesthesia in patients undergoing cataract surgery by phacoemulsification

Purpose: In this study, we intend to analyze ropivacaine and bupivacaine in various parameters during phacoemulsification under deep topical fornix nerve block (DTFNB), a known form of nerve block for phacoemulsification. Methods: This prospective randomized study was conducted on 100 patients undergoing elective cataract surgery by phacoemulsification under DTFNB. Patients were divided into two equal groups of fifty patients each, Groups B (bupivacaine) and Group R (ropivacaine). Two sponges, approximately 2 mm × 3 mm dimensions, saturated with either 0.5% bupivacaine or 0.75% ropivacaine were placed deep in the conjunctival fornices to perform the deep topical block. Both groups were evaluated for magnitude of pain and discomfort at various stages of phacoemulsification using a simple pain scoring system. The level of surgeon satisfaction, requirement for supplementary anesthesia, and surgical complications were also evaluated. Quantitative variables between the two groups were compared using unpaired t-test. Qualitative variables were correlated using Chi-square test. Results: Overall demographic parameters of patients were similar in both groups. Similar mean pain scores were found in the ropivacaine and bupivacaine groups, with no statistical significance. Surgical satisfaction and the need for supplemental anesthesia were also statistically insignificant. Conclusion: Ropivacaine is a good alternative for deep topical anesthesia as it has a better safety margin and lesser toxic effect than other comparable local anesthetic agents.

Comparison of retinal histomorphology following laser photocoagulation using 577 nm subliminal micropulse laser versus 577 nm laser in pigmented rabbits / 中华实验眼科杂志

Background Studies showed that 577 nm subliminal micropulse photocoagulation for retinal diseases is more effective and much safer than 577 nm laser,but its mechanism and sensitive target cells are still unelucidated.Objective This study was to compare the histomorphology changes of rabbit retinas following 577 nm subliminal micropulse excitation and 577 nm laser for retinal photocoagulation and offer a conference for the clinical application of 577 nm subliminal micropulse excitation.Methods Twenty-six Chinese pigment rabbits were randomly divided into normal control group (2 rabbits),577 nm laser photocoagulation group (6 rabbits) and subliminal micropulse photocoagulation group (18 rabbits),in which the rabbits from subliminal micropulse photocoagulation group were subgrouped into 9％,12％ and 15％ subthreshold photocoagulation groups according to the different workload rates,and retinal photocoagulation was performed based on grouping.No treatment was carried out in the normal control group.Fundus camera and OCT were obtained after photocoagulation,and the rabbits were sacrificed to prepare the specimen of eyeball wall.Hematoxylin and eosin staining was employed to examine the histopathological change of choroid and retina under the light microscope.Results The retinal morphology was normal on the fundus color photography and OCT in the normal control group.Obscure of retinal structure and slight edema of retinal neuroepithelial layer with obscure of retinal pigment epithelium (RPE) was found respectively in the 9％ and 12％ subthreshold photocoagulation group,and serious edema of retinal neuroepithelial layer with local RPE elevation was visible in the 15％ subthreshold photocoagulation group.The laser spot was invisible in various subliminal micro pulse groups.However,retinal photocoagulation spots,multifocal elevation of retinal layer and serious detachment of retinal neuroepithelium were found in the 577 nm laser group.Retinal histopathological examination revealed that the photoreceptors,bipolar cells and retinal ganglion cell (RGC) layers were normal,while choroidal vessel deformation and bleeding were visible in the 9％ and 12％ subthreshold photocoagulation groups,and only photoreceptor membrane swelling was seen in the 15％ subthreshold photocoagulation group.However,retinal structure abnormality was displayed in 577 nm laser group,including the structural disorders of inner and outer nuclear layers and RGC layer as well as thinning of RPE layer.Conclusions 577 nm nicropulse laser under threshold is sensitive for RPE and choroid rather than retina neurepithelium,which can play a treating role and also does not damage retina seriously.However,577 nm laser photocoagulation results in retinal structure damage.

Enfoque filosófico del impacto de la cirugía refractiva ocular / Phylosophical approach to the impact of the ocular refractive surgery

La cirugía oftalmológica mundial ha experimentado enormes avances, tanto en sus técnicas como en el impacto social que representa. Temas como la cirugía de catarata y la corrección quirúrgica de los defectos refractivos han sufrido grandes cambios en los últimos años. En esta especialidad como en cualquier rama de la ciencia los científicos necesitan acudir a la Filosofía, ya que también tiene su impacto en el desarrollo de esta ciencia. Esto está dado principalmente porque los conocimientos deben verse interrelacionados con otras ciencias y por lo que significa la pérdida visual o un tratamiento inadecuado para los pacientes y, por tanto, para la sociedad. El colectivo de autores está empeñado en la profundización de esta problemática sin la cual las metas de salud en el milenio serán de difícil cumplimiento.

Eye surgery has made great advances worldwide in terms of its techniques and social impact. Some issues like cataract surgery and surgical correction of refractive defects have undergone big changes in the last few years. As it happens in any branch of science, the scientific need to resort to philosophy within this specialty since the former has its own impact on the development of eye surgery. This is mainly due to the fact that knowledge should be interrelated with other sciences and that the significance of visual loss or inadequate treatment for both the patients and the society. The group of authors of this paper is committed to delve into this issue, because it will be difficult to meet the health goals of the millennium if this topic is not given due consideration.

Life quality assessment of patients after phacoemulsification or extracapsular cataract extraction / Avaliação da qualidade de vida de pacientes submetidos à facoemulsificação ou extração extracapsular de catarata

Purpose: To study the quality of life, treatment outcomes, and satisfaction in patients who have undergone cataract surgery Methods: This comparative case series study was conducted at the Ophthalmology Service of the Bettina Ferro de Souza University Hospital, Belém, Pará, Brazil. Totally, 60 patients with cataract were included; 50% underwent conventional extracapsular cataract extraction (ECEE) and 50% underwent cataract extraction by phacoemulsification (PHACO). Patients were interviewed using the Visual Function 14 (VF-14) questionnaire to determine the quality of life before and 30 days after surgery. The results of ophthalmological examination were recorded in the patients' files and were available throughout this study. One-way ANOVA, Tukey's post-hoc comparison, and the sign test were used for statistical analyses. Results: The mean VF-14 satisfaction index was 38.0 and 89.4 before and after surgery, respectively, for the ECEE group and 47.0 and 94.1, respectively, for the PHACO group. The improvement in patient quality of life after surgery was significant in both groups (p<0.0001), with a similar amount of improvement in both groups. Conclusions: The observed improvement in quality of life was significant (p<0.0001) and directly related to patient satisfaction with surgical outcomes, which was also significant (p<0.0001) as assessed using the VF-14. Satisfaction and quality of life are individual factors; consequently, patient responses to questions regarding improvements in the ability to perform each activity are subjective and depend uniquely on individual perception. .

Objetivo: Estudar a qualidade de vida, resultados e satisfação em pacientes que se submeteram à cirurgia de catarata. Métodos: O trabalho foi realizado no Serviço de Oftalmologia do Hospital Universitário Bettina Ferro de Souza, Belém, Pará, Brasil. O desenho experimental consistiu em séries de casos comparados. O estudo incluiu 60 indivíduos com catarata. Metade dos pacientes foi submetida à extração de catarata extracapsular convencional (ECEE) e a outra metade à extração de catarata por facoemulsificação (PHACO). Os pacientes foram entrevistados usando-se o questionário Visual Function 14 (VF-14) para determinar a qualidade de vida antes e 30 dias depois da cirurgia. Os resultados do exame oftalmológico foram registrados no arquivo de cada paciente e disponibilizados ao longo do trabalho. Foram usados análise de variância simples e comparação post-hoc com teste de Tukey e teste dos sinais para a análise estatística dos resultados. Resultados: O índice de satisfação médio VF-14 foi 38,0 e 89,4 antes e após a cirurgia, respectivamente, para o grupo ECEE, sendo 47,0 e 94,1 para o grupo PHACO. A melhora na qualidade de vida após a cirurgia foi significativa em ambos os grupos de pacientes (p<0,0001), tendo sido semelhante em ambos os grupos. Conclusão: A melhora observada na qualidade de vida avaliada foi significativa e diretamente relacionada à satisfação dos pacientes com os resultados da cirurgia, a qual também foi significativa (p<0,0001). A satisfação e a qualidade de vida são fatores individuais. Consequentemente, as respostas dos pacientes relativas à melhoria em cada atividade são subjetivas e dependem unicamente da percepção individual. .

Consideraciones prácticas sobre la cirugía oftalmológica en el paciente cardiópata / Practical considerations on eye surgery in the cardiac patient

La responsabilidad de la evaluación preoperatoria integral en las intervenciones oftalmológicas, con frecuencia recae en el cirujano, quien debe identificar a los afectados con riesgo cardiovascular incrementado y tomar a tiempo las medidas para evitar complicaciones de esta índole. El presente artículo se enfoca en tales aspectos, definiendo las acciones que corresponden directamente al oftalmólogo, aquellas en que funge como gestor, y las que rigurosamente no le competen. También se exponen las estrategias farmacológicas más modernas, con énfasis en el consumo de antiagregantes plaquetarios o anticoagulantes y en la necesidad de la profilaxis antimicrobiana; se refieren las entidades cardíacas inestables que, salvo escasas excepciones, exigen postergar la intervención, y los principios del tratamiento en las enfermedades cardiovasculares más comunes.

Responsibility for comprehensive preoperative evaluation in ophthalmologic interventions often falls on the surgeon, who should identify those patients with increased cardiovascular risk and take timely measures to prevent these complications. This article focuses on such aspects, defining the actions that correspond directly to the ophthalmologist, those in which he serves as manager, and those which do not concern him rigorously. The most modern pharmacological strategies are also described, with emphasis on the use of antiplatelet drugs or anticoagulants and on the need of antimicrobial prophylaxis; unstable heart entities, which, with few exceptions, require postponing the intervention and treatment principles in the most common cardiovascular diseases are referred.

Feed back of the parents and / or relatives witnessing a squint surgery of their ward in the operation theater.

The aim of the study was to know the response of the relatives attending the squint surgery of their ward. A trained secretary administered an eight item questionnaire by live / telephonic interview. Of the 44 attendees, two left the Operation Theater before completion of the surgery. Mean age of the patients was 7.2 years ± 7.8 and that of the attendees was 36.1 years ± 8.5. Forty patients had a surgery under general anesthesia and four under local anesthesia. Eleven (25%) attendees experienced an increase in anxiety. Thirty-six (82%) attendees reported increased transparency, 38 (86%) reported increased confidence, and 43 (98%) reported increased awareness. None found any disadvantage. Twenty-seven (61%) recommended this practice for all and 16 (36%) recommended the practice selectively. The internal validity of the questionnaire was fair (Cronbach's Alpha = 0.6). It was concluded that the presence of relatives in the Operation Theater during the surgery could bring in more transparency, accountability, confidence, awareness, and trust.

Quantitative Evaluation of the Training Effect for Surgical Technique by Senior Eye Surgeons / 医学教育

To evaluate the training effect in cataract surgery, we studied four right-handed ophthalmologists who were learning temporal corneal incision. The surgical technique included phacoemulsification of cataractous lens nuclei with an ultrasonic handpiece and insertion of intraocular lenses with the right hand for the right eye and with the left hand for the left eye. We recorded the ultrasound time and energy to evaluate the training process quantitatively and compared 10 early cases with 10 cases treated after 6 to 15 months of training. We found that ultrasound time decreased after training and did not differ significantly between the right and left hands for three trainees. However, one trainee continued to require longer ultrasound time with the left hand even after training. The reduction in energy was greatest for the youngest trainee, indicating the training effect was also greatest. We could evaluate the training process quantitatively and could determine individual characteristics for a standardized technique, such as phacoemulsification in cataract surgery.

Measurement of acute pain after eye surgery in children

This study was performed to assess the degree of acute pain in children following eye surgery using a Face Pain Rating Scale (FPRS), with a validity and reliability test employing a Numeric/Word Graphic Rating Scale (NWGRS). The degree of pain was obtained at 2, 4, 6, 8 and 24 hours after surgery using the FPRS and NWGRS. The changes in pain intensities were analyzed using a RM-ANOVA, while the relationship between the FPRS and NWGRS was analyzed by a Pearson coefficient in SPSS/WIN. Two third of the children experienced pain equal to, or greater, than moderate to severe, and about one fifth of the subjects expressed the most severe pain at 2 hours after surgery. At 4 hours after surgery, 95.3% of the children still complained of pain, and 8 hours after surgery, 82.8% of the patients experienced 'a little bit' or 'a little more' pain or discomforts. At 1 day after surgery, only 34.4% of children were free of pain. A high correlation between the FPRS and NWGRS was identified over 5 time-points (.887 < r < .735). The gender, type of the surgery and past operation experience had no effects on the degree of pain. Our results suggest that FPRS is a reliable and valid measurement for acute pain assessment in Korean children following eye surgery, and warrants application in the integrated clinical protocol, including non-pharmacological and pharmacological management of acute pediatric pain reduction following surgery.

A new modality of retroscleral intraorbital implantation / 眼科

Immediate placement of a silicone ball intraorbitally after enucleation prevents contraction of the orbit and retraction of the eyelids. The author placed the implant in the muscular cone behind the scleral shell, which prevented the frequent extrusion of the ball, and the intact attachment of the rectal muscles to the sclera was conducive to satisfactory motility of the ocular prosthesis. 8 cases received this modality of implantation with good results during a followup of 6～39 months. The author started using hydroxyapatite balls recently with promising success.