Leonardo Akaishi

Hospital Oftalmologico de Brasília

Author Statistics

Papers

Citation

H-Index

i-10 index

Research Trends

Author Order

Document Type

Co-Authors

Patrick Frensel Tzelikis

Hospital Oftalmologico de Brasília

Rodrigo Vaz

Instituto Federal de Educação, Ciência e Tecnologia do Pará

Marina Carneiro Dutra

Universidade Católica de Brasília

Fernando Trindade

Universidade Federal de Minas Gerais

Wagner Rodrigues Martins

Universidade de Brasília

Joel Edmur Boteon

Universidade Federal de Minas Gerais

Carmen Jansen de Cárdenas

Hospital Vargas

Fábio Canamary

Hospital Oftalmologico de Brasília

Sarah Brandão Pinheiro

Universidade Paulista

Juliana Dias dos Santos

Universidade Federal de Sergipe

Cooperative Institutions

Hospital Oftalmologico de Brasília

Universidade Federal de Minas Gerais

Universidade de São Paulo

Universidade Católica de Brasília

Hospital Universitário de Brasília

Universidade Paulista

Hospital de Base

Wills Eye Hospital

Thomas Jefferson University

Universidade de Brasília

Author Statistics

Papers

Citation

H-Index

i-10 index

Research Field

Chapter-19 Multifocal Intraocular Lenses

Clinical ophthalmology (2011)

Leonardo Akaishi

Intraocular lenses

Multifocal intraocular lens

10.5005/jp/books/11246_19

Cite

Citations (0)

Visual Performance of Tecnis ZM900 Diffractive Multifocal IOL after 2500 Implants: A 3-Year Followup

Journal of Ophthalmology (2010)

Leonardo Akaishi Rodrigo Vaz Graziela Vilella Rodrigo C. Garcez Patrick Frensel Tzelikis

Purpose. To evaluate visual performance for near, intermediate, and distant vision; complaints of photic phenomena, and patient satisfaction with the new diffractive multifocal IOL used in eyes which underwent phacoemulsification. Methods. Two thousand and five hundred consecutive eyes undergoing Tecnis ZM900 multifocal IOL implantation were included in this retrospective analysis. The minimum followup of 3 months was required after the surgery. Patients were assessed for uncorrected near visual acuity (UNVA) at a fixed distance (33 cm), uncorrected intermediate visual acuity (UIVA) at 60 cm, and uncorrected distance visual acuity (UDVA). Using a subjective questionnaire, patients satisfaction, their independence from using glasses, and the perception of glare and halo phenomena were also evaluated at the last follow-up. Results. Two thousand and five hundred eyes of 1558 patients underwent cataract surgery and Tecnis ZM900 multifocal IOL implantation. Four hundred and eighty seven patients (31.3%) were men, and 1071 (68.7%) were women. The mean age of the patients was 66.17 years. A UDVA of 20/30 or better was achieved by 85% of eyes. A UNVA of J1 was achieved by 93.7% of eyes and that of J2 or better was achieved by 98%. A UIVA of J4 or better was achieved by 65% and J5 or better was achived by more than 82.8% of the eyes in the study. Glare and halos were reported as severe by only 6.1% and 2.12% of patients, respectively. Ninety seven percent reported complete spectacle independence and 88% stated that they are totally satisfied with their quality of vision and would choose to have the same lens implanted again after the first implant. Five percent of the eyes in the study needed a second procedure (enhancement) to achieve a better visual result. No patient underwent lens exchange. Conclusion. Excellent near, intermediate, and distant vision was observed in patients implanted with the Tecnis ZM900 diffractive multifocal IOL. Spectacle independence and a minimum occurrence of photic phenomena make this IOL an excellent option in patients with cataract.

Multifocal intraocular lens

GLARE

Near vision

10.1155/2010/717591

Cite

Citations (22)

Primary piggyback implantation using the ReSTOR intraocular lens: Case series

Journal of Cataract & Refractive Surgery (2007)

Leonardo Akaishi Patrick Frensel Tzelikis

To assess the postoperative outcomes of piggyback implantation using the AcrySof ReSTOR intraocular lens (IOL) (model SA60D3, Alcon Surgical Laboratories).Hospital Oftalmológico de Brasília, Brasília, Brazil.Thirteen eyes of 7 patients who had phacoemulsification with piggyback IOL implantation were analyzed prospectively. In all cases, a ReSTOR IOL was implanted in the capsular bag and a second silicone IOL was implanted in the ciliary sulcus. Information collected included uncorrected visual acuity (UCVA) at near and distance, best corrected visual acuity (BCVA), and spherical equivalent (SE) before and after surgery.The patients were followed for 12 months. The mean distance UCVA was 0.25 (20/80) preoperatively and 0.88 (20/23) at the last follow-up (1 year), which was significantly better than before surgery (P<.05). The mean SE was +4.25 diopters (D) +/- 1.5 (SD) preoperatively and +0.15 +/- 0.44 D (range -0.50 to +0.75 D) at 1 year, which was significantly better than preoperatively (P<.05). No patient lost lines of BCVA after surgery. At the last follow-up, all eyes had a near UCVA of J1 and none required spectacles for near or distance vision.Piggyback implantation using the ReSTOR IOL appeared to be a safe and efficient procedure providing high-quality visual acuity for near and distance vision in selected patients.

Multifocal intraocular lens

10.1016/j.jcrs.2007.01.016

Cite

Citations (20)

Multifocal intraocular lens optic anteriorization capture to correct residual refractive error

Journal of Cataract & Refractive Surgery (2009)

Leonardo Akaishi Tiago Bessa Rodrigo Vaz Fábio Canamary Patrick Frensel Tzelikis

PURPOSE: To evaluate the efficacy and safety of capturing the intraocular lens (IOL) optic through the anterior capsulorhexis opening in eyes with multifocal IOLs and a residual refractive error. SETTING: Hospital Oftalmológico de Brasília, Brasília, Brazil. METHODS: Eyes with previous cataract surgery and Tecnis ZM900 multifocal IOL implantation were prospectively analyzed. After at least 1 month, patients had second surgery in which the IOL optic was captured through the anterior capsulorhexis opening to correct the residual refractive error. Preoperative and postoperative examinations at 1 day and 3 months included spherical equivalent (SE); uncorrected distance (UDVA), near (UNVA), and intermediate (UIVA) visual acuities; and corrected distance visual acuity (CDVA). RESULTS: The study included 16 eyes of 14 patients. The mean UDVA was 0.32 logMAR preoperatively and 0.10 logMAR after anterior optic capture and the mean SE, +1.09 diopters (D) and +0.26 D, respectively; both improvements were statistically significant (P<.001). The change in CDVA and UNVA from before anterior optic capture to the last follow-up was not statistically significant. The UIVA was significantly worse postoperatively (P = .011). No eye lost lines of CDVA. One eye (6.25%) developed glaucoma postoperatively. At the last follow-up, 13 patients (92.85%) were spectacle-independent for near and distance vision. CONCLUSION: Early outcomes indicate that anterior optic capture is a safe, accurate procedure in eyes with multifocal IOLs and a mild hyperopic residual refractive error postoperatively.

Capsulorhexis

Multifocal intraocular lens

Pseudophakia

10.1016/j.jcrs.2009.08.014

Cite

Citations (9)

Ocular aberrations and contrast sensitivity after cataract surgery with AcrySof IQ intraocular lens implantation

Journal of Cataract & Refractive Surgery (2007)

Patrick Frensel Tzelikis Leonardo Akaishi Fernando Trindade Joel Edmur Boteon

To determine whether implantation of an intraocular lens (IOL) with a modified posterior aspherical surface (AcrySof IQ, Alcon Surgical Laboratories) results in reduced ocular aberrations (spherical aberration) and improved contrast sensitivity after cataract surgery.Brasilia Ophthalmologic Hospital, Brasilia, and Sao Geraldo Eye Hospital, Federal University of Minas Gerais, Belo Horizonte, Brazil.In an intraindividual randomized prospective study of 25 patients with bilateral cataract, an IOL with a modified posterior surface (AcrySof IQ) was compared with a biconvex IOL with spherical surfaces (AcrySof Natural, Alcon). Ocular aberrations with a 5.0 mm and 6.0 mm pupil were measured with a Hartmann-Shack aberrometer. Quality of vision was measured by visual acuity and contrast sensitivity under mesopic and photopic conditions. All patients were followed for 3 months.There were no statistically significant differences between eyes in postoperative uncorrected and best corrected distance visual acuities after a follow-up of 1 month and 3 months. Postoperatively, there was a statistically significant between-group difference in contrast sensitivity under photopic conditions without glare at 18 cycles per degree (cpd) (P = .04) and under mesopic conditions without glare at all spatial frequencies (3 cpd, 6 cpd, 12 cpd, and 18 cpd; P = .03, P = .009, P = .003, and P = .003, respectively) and with glare at 3 cpd and 6 cpd (P = .001 and P = .02, respectively). The difference in higher-order aberration (HOA) values between groups was statistically significant with a 5.0 mm and 6.0 mm pupil, with the AcrySof IQ IOL inducing less HOA than the AcrySof Natural IOL. Eyes with an AcrySof IQ IOL also had statistically significant less spherical aberration than eyes with an AcrySof Natural IOL with both pupil diameters (P<.001).The AcrySof IQ IOL with a modified posterior surface induced significantly less HOA and spherical aberration than the AcrySof Natural IOL. Contrast sensitivity was better under mesopic conditions with the AcrySof IQ IOL.

Mesopic vision

GLARE

10.1016/j.jcrs.2007.06.053

Cite

Citations (81)

Afilamento escleral em paciente com rinosporidiose conjuntival

Revista Brasileira de Oftalmologia (2007)

Patrick Frensel Tzelikis Herval Cavalcante Martins Graziella Vilela Leonardo Akaishi

rinosporidiose e uma infeccao granulomatosana qual o agente etiologico e o Rhinos-poridium seeberi, que acomete primariamen-te as mucosas nasais ou oculares, levando ao apareci-mento de reacao tecidual cronica, caracterizada pelaformacao de lesoes polipoides e vascularizadas. Amucosa nasal e o sitio de infeccao mais frequente, segui-do da conjuntiva bulbar

10.1590/s0034-72802007000500009

Cite

Citations (1)

Ceratoplastia lamelar anterior profunda pela técnica da "big-bubble"

Arquivos Brasileiros de Oftalmologia (2011)

Patrick Frensel Tzelikis Juliana Dias dos Santos Rodrigo Castro Garcez Leonardo Akaishi

To evaluate the efficacy, safety, and complications related to the deep anterior lamellar keratoplasty (DALK) using the big-bubble technique.A prospective study of patients submitted to DALK using the big-bubble technique was conducted. After the procedure, uncorrected visual acuity (UCVA), best corrected visual acuity (BCVA), spherical equivalent (SE), corneal topography, endothelial cell density, and intraoperative and postoperative complications were evaluated.Fifty-nine eyes of 55 patients were included in this study. Mean follow-up period was 16 ± 7.4 months. Baseline mean UCVA (logMAR) and BCVA was 1.60 ± 0.33 and 1.00 ± 0.43, respectively. After 12 months, the mean UCVA and BCVA improved to 0.86 ± 0.39 and 0.17 ± 0.14, respectively. Mean SE improved from -8.21 ± 3.91 to -1.82 ± 3.62 at 12 months. Mean topographic astigmatism improved from -7.9 ± 3.7 to -2.21 ± 1.7 at 12 months. Mean preoperative endothelial cell density was 2,377.98 ± 263.56 cells/mm², after 12 months of surgery the mean endothelial cell density reduced to 1,851.32 ± 397.61 cells/mm². Intraoperative microperfuration occurred in 6 cases (10.2%). One patient developed stromal rejection, and one patient developed fixed dilated pupil (Urrets-Zavalia Syndrome) after the procedure.Nevertheless, deep anterior lamellar keratoplasty is more technically challenging, yet rewarding choice of surgery for keratoplasty patients who have a healthy endothelial cell count. ClinicalTrials.gov Identifier: NCT00887900.

10.1590/s0004-27492011000600011

Cite

Citations (1)

Avaliação do desempenho da tecnologia NeoSoniX TM em cirurgias de catarata

Arquivos Brasileiros de Oftalmologia (2006)

Leonardo Akaishi Rodrigo Vaz de Queiroz Silva

OBJETIVOS: As técnicas e resultados da cirurgia de catarata melhoraram drasticamente com o avanço tecnológico. Um dos motivos para melhoria seria a menor utilização de ultra-som com novos aparelhos de facoemulsificação. O objetivo deste estudo é confirmar na prática a vantagem teórica da caneta NeoSoniX TM. MÉTODOS: Foi realizada uma análise na qual os autores compararam resultados dos parâmetros registrados pelo aparelho de facoemulsificação Legacy durante 300 cirurgias de catarata realizadas com caneta de ultra-som (handpiece) convencional e 100 com a caneta NeoSoniX TM. Todas as cirurgias foram realizadas pelo mesmo cirurgião, com a mesma técnica cirúrgica. A escolha da "handpiece" foi aleatória, sendo comparadas, em relação ao grau de dureza das cataratas, os parâmetros de tempo do ultra-som, quantidade de solução salina balanceada e porcentagem de "average power" utilizadas durante as cirurgias. RESULTADOS: Foi realizada análise retrospectiva numa série cronológica de casos, mostrando que em qualquer que seja o grau de dureza da catarata, o tempo de utilização do ultra-som com a caneta NeoSoniX foi inferior ao da caneta convencional (p<0,000001). O volume de solução salina balanceada utilizado durante as cirurgias foi menor a favor da tecnologia NeoSoniX (p<0,000001). Em relação à porcentagem de potência do ultra-som utilizada com as diferentes tecnologias, encontrou-se valor inferior no grupo da caneta NeoSoniX (p<0,000001). CONCLUSÕES: Houve superioridade significativa no uso da caneta NeoSoniX comparada à caneta convencional do aparelho Legacy nas cirurgias de catarata, independente do seu grau.

10.1590/s0004-27492006000300019

Cite

Citations (0)

Multifocal Intraocular Lenses

Jaypee Brothers Medical Publishers (P) Ltd. eBooks (2008)

Leonardo Akaishi Canrobert Oliveira

Intraocular lenses

Multifocal intraocular lens

10.5005/jp/books/10779_13

Cite

Citations (1)

Acuidade visual em implantes bilaterais de lentes intra-oculares monofocais e multifocais

Arquivos Brasileiros de Oftalmologia (2003)

Leonardo Akaishi André Gustavo Rolim de Araújo Regina C. N. dos Santos Procópio Miguel dos Santos

OBJETIVO: Comparar a acuidade visual de longe e perto de pacientes submetidos à facoemulsificação binocular não simultânea com implante de lentes multifocais ou monofocais. MÉTODOS: Foram selecionados 20 pacientes com lentes multifocais bilaterais e outros 20 pacientes com lentes monofocais também bilaterais, com acuidade visual sem correção melhor ou igual a 0,63 (20/30), medidos separadamente, nos três primeiros meses de pós-operatório. Foi medida a acuidade visual para longe e perto com e sem correção e testes de sensibilidade ao contraste e ofuscamento. RESULTADOS: A acuidade visual sem correção para longe no grupo das monofocais teve média de 0,82 (DP± 0,16) e no grupo das multifocais, 0,94 (DP±0,12), valor de p 0,001. Os dois grupos de lentes tiveram visão com correção para longe igual a 1. No grupo das multifocais, 75% tiveram J1 e 100% tiveram J3 ou melhor sem correção. No grupo das lentes monofocais, 10% tiveram J1 e 70% tiveram J3 ou melhor sem correção. Não houve diferença significante na avaliação com o teste de sensibilidade ao contraste entre os grupos pesquisados. No teste de ofuscamento, os dois grupos tiveram redução da visão, que foi mais acentuada no grupo dos pacientes com lentes multifocais. CONCLUSÃO: A acuidade visual para longe com correção nos pacientes com implante multifocal foi semelhante a dos pacientes com implantes monofocais, embora a acuidade visual para perto no grupo em que foi implantado lente multifocal foi bastante superior ao grupo da lente monofocal. A sensibilidade ao contraste manteve-se semelhante nos dois grupos, já o ofuscamento ("glare test") no grupo multifocal foi maior que no grupo monofocal.

10.1590/s0004-27492003000200016

Cite

Citations (5)