Evaluating the different laser fragmentation patterns used in laser cataract surgeries in terms of effective phacoemulsification time and power.

Purpose: To evaluate the effects of the different fragmentation patterns for the lens nucleus in terms of the effective phacoemulsification time (EPT) and power.

Setting: Shinagawa LASIK Center, Tokyo, Japan.

Design: Comparison study.

Visual and optical performances of multifocal intraocular lenses with three different near additions: 6-month follow-up.

Purpose: To compare the visual and optical outcomes of four multifocal intraocular lenses (IOLs) with three different near additions of +3.00 diopters (D), +3.75 D and +4.

One-year results of simultaneous laser in situ keratomileusis and small-aperture corneal inlay implantation for hyperopic presbyopia: comparison by age.

Purpose: To compare by age the safety, efficacy, and patient satisfaction after simultaneous laser in situ keratomileusis (LASIK) and small-aperture corneal inlay implantation (Kamra) for hyperopic presbyopia.

Setting: Shinagawa LASIK Center, Tokyo, Japan.

Design: Retrospective comparative cohort study.

Two target locations for corneal inlay implantation combined with laser in situ keratomileusis.

Purpose: To compare the visual acuity outcomes between 2 target locations for corneal inlay implantation with concurrent laser in situ keratomileusis (LASIK) to compensate for presbyopia.

Setting: Shinagawa LASIK Center, Tokyo, Japan.

Design: Retrospective cohort study.

Visual and optical performance of diffractive multifocal intraocular lenses with different haptic designs: 6 month follow-up.

Purpose: To evaluate and compare the visual acuity outcomes and optical performances of eyes implanted with two diffractive multifocal intraocular lens (IOL) models with either a plate haptic design or a modified-C design.

Methods: This retrospective study comprised cataract patients who were implanted with either a plate haptic multifocal IOL model (Acriva(UD) Reviol BB MFM 611 [VSY Biotechnology, Amsterdam, the Netherlands], group 1) or a modified-C haptic multifocal IOL model (Acriva(UD) Reviol BB MF 613 [VSY Biotechnology, Amsterdam, the Netherlands], group 2) between June 2012 and May 2013. The 6 month postoperative visual acuity, refraction, defocus curve, contrast sensitivity, and wave-front aberration were evaluated and compared between these eyes, using different IOL models.

High-irradiance accelerated collagen crosslinking for the treatment of keratoconus: six-month results.

Purpose: To evaluate the effectiveness of accelerated corneal collagen crosslinking (CXL) with riboflavin for keratoconus by the change in dioptric power and corneal topography.

Setting: Private practice, Tokyo, Japan.

Design: Case series.

Accelerated versus conventional corneal collagen crosslinking.

Purpose: To compare the outcomes of accelerated corneal collagen crosslinking (CXL) and conventional corneal CXL.

Settings: Private practice, Tokyo, Japan.

Design: Comparative study.

In vivo confocal laser microscopy of morphologic changes after simultaneous LASIK and accelerated collagen crosslinking for myopia: one-year results.

Purpose: To evaluate the safety of corneal collagen crosslinking (CXL) combined with laser in situ keratomileusis (LASIK).

Setting: Shinagawa LASIK Center, Tokyo, Japan.

Design: Case series.

Comparative study of 2 types of implantable collamer lenses, 1 with and 1 without a central artificial hole.

Purpose: To compare the outcomes between implantable collamer lenses (ICLs), 1 with and 1 without a central artificial hole.

Design: Comparative study.

Methods: We included 65 eyes of 65 patients with refractive error in our study.

Long-term observation and evaluation of femtosecond laser-assisted thin-flap laser in situ keratomileusis in eyes with thin corneas but normal topography.

Purpose: To evaluate the long-term outcomes of thin-flap laser in situ keratomileusis (LASIK) in eyes with thin corneas (central corneal thickness [CCT] <500 μm) but normal topography.

Setting: Private center, Tokyo, Japan.

Design: Retrospective randomized comparative study.

Corneal biomechanics as a function of intraocular pressure and pachymetry by dynamic infrared signal and Scheimpflug imaging analysis in normal eyes.

Purpose: To evaluate corneal biomechanical deformation response using Ocular Response Analyzer (ORA) and Corvis ST data.

Design: Prospective observational case-control study.

Methods: A total of 1262 eyes of 795 patients were enrolled.

Safety, efficacy, and predictability of laser in situ keratomileusis to correct myopia or myopic astigmatism with a 750 Hz scanning-spot laser system.

Purpose: To evaluate the clinical outcomes of laser in situ keratomileusis (LASIK) to correct myopia or myopic astigmatism using the Amaris 750S 750 Hz excimer laser.

Setting: Private LASIK center, Tokyo, Japan.

Design: Case series.

Corneal heat scar caused by photodynamic therapy performed through an implanted corneal inlay.

A 60-year-old man had a combination of laser in situ keratomileusis and Kamra corneal inlay implantation to correct presbyopia. Although the outcome was favorable postoperatively, central serous chorioretinopathy was observed in the left eye along with a decrease in the uncorrected (UDVA) and corrected (CDVA) distance visual acuities and the corrected near visual acuity (CNVA). Photodynamic therapy (PDT) was later performed in a university hospital.

Small-aperture corneal inlay in patients with prior radial keratotomy surgeries.

This paper describes the 3-month results of two patients who underwent KAMRA™ (AcuFocus, Inc, Irvine, CA, USA) inlay implantation surgery with a history of prior radial keratotomy. The refractive error just before KAMRA inlay implantation was corrected in one patient with a laser-assisted in situ keratomileusis (LASIK) procedure. The post-inlay implantation surgery results showed effective uncorrected near visual acuity outcomes with no impact on uncorrected distance visual acuity in both patients.

Small-aperture corneal inlay in presbyopic patients with prior phakic intraocular lens implantation surgery: 3-month results.

We report a series of three case reports of KAMRA inlay implantation procedures in presbyopic patients with a history of prior phakic intraocular lens implantation surgery. Three-month results showed a two to five-line improvement for uncorrected near visual acuity. The absolute uncorrected near visual acuity change for case 1 was from J4 to J2, for case 2 was from J6 to J4, and for case 3 was from J10 to J5.

Cogan syndrome presenting after uneventful laser in situ keratomileusis.

We report 2 cases of Cogan syndrome that developed after uneventful laser in situ keratomileusis. In the first case, an 8-month postoperative biomicroscopy revealed bilateral interface neovascularization, white intrastromal deposits, and anterior chamber cells and flare. In the second case, white cell infiltration and neovascularization were observed in the deep corneal stroma of the patient's right eye 18 months postoperatively.

Clinical results of using a high-repetition-rate excimer laser with an optimized ablation profile for myopic correction in 10 235 eyes.

Purpose: To evaluate the visual outcomes, safety, stability, efficacy, and predictability of laser in situ keratomileusis (LASIK) to correct myopia using a high-repetition-rate excimer laser with an optimized ablation profile.

Setting: Private clinic, Tokyo, Japan.

Design: Retrospective noncomparative study.

Small-aperture corneal inlay implantation to treat presbyopia after laser in situ keratomileusis.

Purpose: To evaluate the visual outcomes after implantation of a Kamra small-aperture corneal inlay into a femtosecond-created corneal pocket to treat presbyopia in patients who had previous laser in situ keratomileusis (LASIK).

Setting: Private center, Tokyo, Japan.

Design: Prospective interventional case series.

Supplementary effect of static cyclotorsion compensation with dynamic cyclotorsion compensation on the refractive and visual outcomes of laser in situ keratomileusis for myopic astigmatism.

Purpose: To evaluate the add-on effect of static cyclotorsion compensation (SCC) over dynamic cyclotorsion compensation (DCC) on the refractive and visual outcomes in patients having laser in situ keratomileusis (LASIK) for myopic astigmatism.

Setting: Private center, Tokyo, Japan.

Design: Comparative study.

Analysis of corneal endothelial cell density and morphology after laser in situ keratomileusis using two types of femtosecond lasers.

Purpose: To compare two different femtosecond lasers used for flap creation during laser-assisted in situ keratomileusis (LASIK) surgery in terms of their effects on the corneal endothelium.

Methods: We performed LASIK surgery on 254 eyes of 131 patients using IntraLase FS60 (Abbott Medical Optics, Inc, Irvine, CA; IntraLase group) and 254 eyes of 136 patients using Femto LDV (Ziemer Group AG, Port, Switzerland; LDV group) for corneal flap creation. The mean cell density, coefficient of variation, and hexagonality of the corneal endothelial cells were determined and the results were statistically compared.

Simultaneous corneal inlay implantation and laser in situ keratomileusis for presbyopia in patients with hyperopia, myopia, or emmetropia: six-month results.

Purpose: To evaluate the safety and efficacy of simultaneous Kamra corneal inlay implantation and laser in situ keratomileusis (LASIK) for the treatment of presbyopia in emmetropic, hyperopic, or myopic patients.

Setting: Private center, Tokyo, Japan.

Design: Cohort study.

Evaluation of LASIK treatment with the Femto LDV in patients with corneal opacity.

Purpose: To evaluate the relative effectiveness and safety of LASIK using the Femto LDV (Ziemer Ophthalmic Systems AG) and IntraLase FS 60 (Abbott Medical Optics Inc) femtosecond lasers in patients with corneal opacity.

Methods: Patients with corneal opacity were retrospectively selected between March and July 2009. For this study, 205 eyes with 90-μm corneal flaps created using the Femto LDV (LDV group) and 200 eyes with corneal flaps created using the IntraLase FS 60 (Intra-Lase group) were selected.

Management and outcomes of suction loss during LASIK flap creation with a femtosecond laser.

Purpose: To evaluate risk factors, management, and outcomes in patients who experienced suction loss during LASIK flap creation with a femtosecond laser (Intra-Lase FS 60, Abbott Medical Optics Inc).

Methods: Pre- and postoperative visual outcomes and refractions for 71 eyes of 70 patients after suction loss during flap creation with the IntraLase FS60 femtosecond laser were analyzed and studied.

Results: In patients requiring a second or third lamellar flap cut immediately after suction loss, 97.

Conductive keratoplasty for the treatment of presbyopia: comparative study between post- and non-LASIK eyes.

Purpose: To evaluate the efficacy and safety of conductive keratoplasty (CK) for the treatment of presbyopia and analyze the differences in the effects between post- and non-laser in situ keratomileusis (LASIK) eyes. Clinical preoperative factors that could affect the predictability of CK were also analyzed.

Methods: The visual and refractive outcomes of CK for the treatment of presbyopia in 14 eyes of 13 post-LASIK patients (post-LASIK group mean age 50.