NEWTON KARA JOSE JUNIOR
Projetos de Pesquisa
Unidades Organizacionais
Instituto Central, Hospital das Clínicas, Faculdade de Medicina - Médico
LIM/33 - Laboratório de Oftalmologia, Hospital das Clínicas, Faculdade de Medicina
LIM/33 - Laboratório de Oftalmologia, Hospital das Clínicas, Faculdade de Medicina
4 resultados
Resultados de Busca
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- Topographic outcomes after corneal collagen crosslinking in progressive keratoconus: 1-year follow-up(2017) TIVERON JR., Mauro C.; PENA, Camila Ribeiro Koch; HIDA, Richard Yudi; MOREIRA, Luciane Bugmann; BRANCO, Felipe Roberto Exterhotter; KARA-JUNIOR, NewtonPurpose: We aimed to report and analyze topographic and refractive outcomes following corneal collagen crosslinking (CXL) in patients with progressive keratoconus (KC). Methods: We performed a retrospective, analytical, and observational study of 100 eyes from 74 progressive KC patients who underwent CXL at the Eye Hospital of Parana. Keratometric values were analyzed preoperatively as well as 3 and 12 months postoperatively. Results: For a total of 100 eyes, 68 belonged to male patients. The mean age of our study population was 19.9 +/- 5.61 years. The average visual acuity and topographic parameters overall were stable after 1 year (p<0.05). After 3 months, steepest keratometry reading (K2) and maximum keratometry (Kmax) were significantly decreased (p<0.05). Regarding topographic astigmatism (dK), there was no significant difference between the 3-month and 12-month follow-ups. When we made comparisons between genders following CXL, there were no significant differences related to the changes in Kmax, K2, and spectacle-corrected distance visual acuity (SCDVA). Conclusions: CXL promoted stabilization or improvement of keratometric values and visual acuity. We found that keratoconus apex stability may be achieved 3 months after the procedure. There was no significant difference in keratometric and refractive values measured between male and female patients.
- Long-term efficiency of cataract surgery with hydrophilic acrylic Ioflex intraocular lens(2017) JORGE, Priscilla A.; KOCH, Camila Ribeiro; JORGE, Delano; KARA-JUNIOR, NewtonOBJECTIVE: To evaluate the efficiency of long-term cataract surgery using low-cost intraocular lens implantation in community campaigns. METHODS: Fifty-eight randomly selected patients were evaluated four years after phacoemulsification and Ioflex intraocular lens implantation. Causes of low visual acuity related to the intraocular lens were evaluated, and treatment costs were calculated. RESULTS: The mean age of patients was 72 +/- 10.2 years. Four years after surgery, 25 eyes (43.0%) had decreased visual acuity related to the intraocular lens: posterior capsule opacification was noted in 24 eyes (41.3%), and intraocular lens opacification was noted in one eye (1.7%). The total cost of the post-surgical complication treatments represented 6.3% of the initial budget of the entire surgical patient group. CONCLUSIONS: The efficiency of cataract surgery with low-cost Ioflex intraocular lens implantation was significantly reduced in a long-term follow-up study because postoperative complications related to intraocular lenses emerged at higher rates than when the gold-standard treatment was used.
- Outcomes of Toric Iris-Claw Phakic Intraocular Lens Implantation After Deep Anterior Lamellar Keratoplasty for Keratoconus(2017) TIVERON JR., Mauro C.; BARRIO, Jorge L. Alio del; KARA-JUNIOR, Newton; PLAZA-PUCHE, Ana Belen; ABU-MUSTAFA, Sabat K.; ZEIN, Ghassan; ALIO, Jorge L.PURPOSE: To assess visual and refractive outcomes of toric iris-claw phakic intraocular lens (IOL) implantation in patients who had previously undergone deep anterior lamellar keratoplasty (DALK). METHODS: Retrospective case series including 24 eyes of 24 patients implanted with toric Artiflex or Artisan (Ophtec BV, Groningen, Holland) phakic IOL following DALK for keratoconus. During a 12-month follow-up, the main outcome measures were uncorrected and corrected distance visual acuities (UDVA and CDVA), refractive error components, topographic parameters, and endothelial cell count. Alpins vectorial analysis was performed. RESULTS: At the last follow-up, the spherical equivalent (SE) was within +/- 0.50 diopters (D) in 71% of eyes and within +/- 1.00 D in 92% of eyes. Mean refractive astigmatism was reduced from -4.92 +/- 1.55 D (range: -2.50 to -8.00 D) preoperatively to -0.66 +/- 0.61 D (range: -2.00 to 0.00 D) after treatment, and 76.5% of cases were within +/- 1.00 D. No significant differences (P =.123) were detected in spherical equivalent values between 3-and 12-month follow-up visits. No eyes lost lines in CDVA, and 54% of eyes gained one or more lines. Postoperative UDVA was 20/40 or better in 88% of eyes. Efficacy and safety indexes at 12 months were 0.93 and 1.00, respectively. Mean endothelial cell loss was 6.10% at 12 months postoperatively. No intraoperative or postoperative complications were noted over the follow-up period. CONCLUSIONS: The implantation of a toric iris-claw phakic IOL has shown high efficacy and safety in this series and may be considered as a reasonable option for the management of refractive errors after DALK.
- Consequences of cataract surgery public policies run by private contractors(2017) KARA-JUNIOR, Newton; ALMEIDA, Hirlana Gomes; JORGE, Priscilla de Almeida; CARRICONDO, Pedro Carlos; KARA-JOSE, Newton