A carregar...
Publicação
How visual simulation of presbyopic corrections prior to intraocular lens surgery can benefit surgical practice
| Nome: | Descrição: | Tamanho: | Formato: | |
|---|---|---|---|---|
| 4.13 MB | Adobe PDF |
Autores
Orientador(es)
Resumo(s)
Objetivo: Avaliar se simuladores visuais como o SimVis GekkoTM permitem que os doentes experienciem diferentes tipos de correções para a presbiopia assim como a possível de integração deste dispositivo na prática clínica. Métodos: O Multifocal Acceptance Score (MAS-2EV) e as curvas de desfocagem foram medidas bilateralmente em 19 doentes propostos para cirurgia da catarata através de 3 simulações distintas no SimVis GekkoTM (uma delas sendo a simulação da lente escolhida pelo cirurgião) e medidas novamente depois da cirurgia em 15 desses doentes com a lente intraocular (LIO) implantada. Foram também distribuídos questionários Catquest Modificados antes e depois da cirurgia assim como o feedback dos doentes e dos cirurgiões envolvidos. Resultados: A correlação cruzada (CC) entre as curvas de desfocagem simuladas antes da cirurgia e as curvas medidas depois da cirurgia foram calculadas. Em 80% dos casos, a diferença entre a CC mais elevada e a correspondente à LIO implantada foi inferior a 0,10. Em 47% dos doentes, a CC mais elevada correspondia com a lente intraocular implantada. A raiz do erro quadrático médio entre a média das curvas de desfocagem simuladas e a média das obtidas depois da cirurgia foi calculada para cada uma das três lentes implantadas correspondendo em todas a 0,17D. 100% dos doentes concorda que o SimVis GekkoTM foi útil e que o seu conceito foi fácil de compreender. Conclusão: As simulações do SimVis GekkoTM tiveram uma boa correspondência com a acuidade visual obtida depois da cirurgia, sendo por isso uma representação fiel dos resultados pós-operatórios. Tanto os doentes como os cirurgiões envolvidos no estudo ficaram satisfeitos com a utilização do SimVis GekkoTM e vêem-no como uma mais valia. Simuladores como este podem ser implementados na prática clínica por serem precisos e benéficos tanto para os doentes como para os cirurgiões.
Purpose: To evaluate if visual simulators like the SimVis GekkoTM allow patients to experience different types of presbyopic corrections, as well as to evaluate the possible integration of the device into the surgeon’s decision process. Methods: The MAS-2EV and binocular defocus curves were measured in 19 subjects pre-operatively through 3 different SimVis GekkoTM simulations (one of them being the one selected by the surgeon) and measured again in 15 of those subjects after they had undergone bilateral cataract surgery with the IOL in place. Modified Catquest questionnaires were fulfilled both before and after surgery as well as feedback questionnaires for both the patient and surgeon. Results: Cross-correlations between the defocus curves simulated pre-operatively and the one measured after surgery were calculated. In 80% of the subjects, the difference between the highest CC and the implanted IOL CC was less than 0,10. In 47% of the subjects, the IOL implanted corresponded with the highest CC. The RMS difference between the mean pre-operative simulated and the post-operative defocus curves of all the three types of lenses implanted was 0,17D. 100% of the patients agreed that the SimVisGekkoTM was helpful and its concept was easy to understand. Conclusion: The SimVis GekkoTM simulations had a good correspondence with vision after the surgery and therefore are an accurate representation of post-operative outcomes. Both surgeons and patients found the SimVis GekkoTM helpful and see value in its integration into clinical workflow. Visual simulators like the SimVis GekkoTM can be implemented in clinical practice as they are accurate and both patients and surgeons can benefit from them.
Purpose: To evaluate if visual simulators like the SimVis GekkoTM allow patients to experience different types of presbyopic corrections, as well as to evaluate the possible integration of the device into the surgeon’s decision process. Methods: The MAS-2EV and binocular defocus curves were measured in 19 subjects pre-operatively through 3 different SimVis GekkoTM simulations (one of them being the one selected by the surgeon) and measured again in 15 of those subjects after they had undergone bilateral cataract surgery with the IOL in place. Modified Catquest questionnaires were fulfilled both before and after surgery as well as feedback questionnaires for both the patient and surgeon. Results: Cross-correlations between the defocus curves simulated pre-operatively and the one measured after surgery were calculated. In 80% of the subjects, the difference between the highest CC and the implanted IOL CC was less than 0,10. In 47% of the subjects, the IOL implanted corresponded with the highest CC. The RMS difference between the mean pre-operative simulated and the post-operative defocus curves of all the three types of lenses implanted was 0,17D. 100% of the patients agreed that the SimVisGekkoTM was helpful and its concept was easy to understand. Conclusion: The SimVis GekkoTM simulations had a good correspondence with vision after the surgery and therefore are an accurate representation of post-operative outcomes. Both surgeons and patients found the SimVis GekkoTM helpful and see value in its integration into clinical workflow. Visual simulators like the SimVis GekkoTM can be implemented in clinical practice as they are accurate and both patients and surgeons can benefit from them.
Descrição
Trabalho Final do Curso de Mestrado Integrado em Medicina, Faculdade de Medicina, Universidade de Lisboa, 2022
Palavras-chave
Presbiopia Visião multifocal Lente intraocular SimVis Gekko Oftalmologia