Shigeki Machida

Summary

Affiliation: Iwate Medical University
Country: Japan

Publications

  1. doi request reprint Macular function evaluated by focal macular electroretinograms after reduced fluence photodynamic therapy in eyes with polypoidal choroidal vasculopathy
    Shigeki Machida
    Department of Ophthalmology, Iwate Medical University School of Medicine, Morioka, Iwate, Japan
    Doc Ophthalmol 124:91-8. 2012
  2. doi request reprint Idiopathic choroidal neovascularization as an early manifestation of inflammatory chorioretinal diseases
    Shigeki Machida
    Department of Ophthalmology, Iwate Medical University School of Medicine, Iwate, Japan
    Retina 28:703-10. 2008
  3. doi request reprint Sensitivity and specificity of photopic negative response of focal electoretinogram to detect glaucomatous eyes
    S Machida
    Department of Ophthalmology, Iwate Medical University School of Medicine, 19 1 Uchimaru, Morioka, Iwate 020 8505, Japan
    Br J Ophthalmol 94:202-8. 2010
  4. doi request reprint Photopic negative response of focal electoretinograms in glaucomatous eyes
    Shigeki Machida
    Department of Ophthalmology, Iwate Medical University School of Medicine, Iwate, Japan
    Invest Ophthalmol Vis Sci 49:5636-44. 2008
  5. doi request reprint Correlation between photopic negative response and retinal nerve fiber layer thickness and optic disc topography in glaucomatous eyes
    Shigeki Machida
    Department of Ophthalmology, School of Medicine, Iwate Medical University, 19 1 Uchimaru, Morioka, Iwate, Japan
    Invest Ophthalmol Vis Sci 49:2201-7. 2008
  6. doi request reprint Melanoma-associated retinopathy associated with intranasal melanoma
    Shigeki Machida
    Department of Ophthalmology, Iwate Medical University School of Medicine, Uchimaru, Morioka, Japan
    Doc Ophthalmol 122:191-7. 2011
  7. doi request reprint Enhancement of ON-bipolar cell responses of cone electroretinograms in rabbits with the Pro347Leu rhodopsin mutation
    Tomoharu Nishimura
    Department of Ophthalmology, Iwate Medical University School of Medicine, Iwate, Japan
    Invest Ophthalmol Vis Sci 52:7610-7. 2011
  8. ncbi request reprint The Effect of intravitreal N-methyl-DL-aspartic acid on the electroretinogram in Royal College of surgeons rats
    Takayuki Ohzeki
    Department of Ophthalmology, Iwate Medical University School of Medicine, Morioka, Iwate, Japan
    Jpn J Ophthalmol 51:165-74. 2007
  9. ncbi request reprint Protective effect of hepatocyte growth factor against degeneration of the retinal pigment epithelium and photoreceptor in sodium iodate-injected rats
    Kouji Ohtaka
    Department of Ophthalmology, Iwate Medical University School of Medicine, Iwate, Japan
    Curr Eye Res 31:347-55. 2006
  10. ncbi request reprint Functional changes in rod and cone pathways after photoreceptor loss in light-damaged rats
    Tomomi Takahashi
    Department of Ophthalmology, Iwate Medical University, School of Medicine, Morioka, Iwate, Japan
    Curr Eye Res 30:703-13. 2005

Collaborators

Detail Information

Publications36

  1. doi request reprint Macular function evaluated by focal macular electroretinograms after reduced fluence photodynamic therapy in eyes with polypoidal choroidal vasculopathy
    Shigeki Machida
    Department of Ophthalmology, Iwate Medical University School of Medicine, Morioka, Iwate, Japan
    Doc Ophthalmol 124:91-8. 2012
    ..The macular function was retained after RFPDT without a transient decrease in visual function. Further study is needed to determine the long-term efficacy of RFPDT for eyes with PCV...
  2. doi request reprint Idiopathic choroidal neovascularization as an early manifestation of inflammatory chorioretinal diseases
    Shigeki Machida
    Department of Ophthalmology, Iwate Medical University School of Medicine, Iwate, Japan
    Retina 28:703-10. 2008
    ..We describe four patients with idiopathic choroidal neovascularization (ICNV) who developed inflammatory chorioretinal diseases in the ipsilateral or contralateral eye...
  3. doi request reprint Sensitivity and specificity of photopic negative response of focal electoretinogram to detect glaucomatous eyes
    S Machida
    Department of Ophthalmology, Iwate Medical University School of Medicine, 19 1 Uchimaru, Morioka, Iwate 020 8505, Japan
    Br J Ophthalmol 94:202-8. 2010
    ..To determine the sensitivity and specificity of the photopic negative response (PhNR) of the focal electroretinograms (ERG; focal PhNR) to detect glaucomatous eyes with different degrees of visual field defects...
  4. doi request reprint Photopic negative response of focal electoretinograms in glaucomatous eyes
    Shigeki Machida
    Department of Ophthalmology, Iwate Medical University School of Medicine, Iwate, Japan
    Invest Ophthalmol Vis Sci 49:5636-44. 2008
    ..To determine the clinical importance of the photopic negative response (PhNR) of the focal electoretinogram (fERG) for diagnosing glaucoma...
  5. doi request reprint Correlation between photopic negative response and retinal nerve fiber layer thickness and optic disc topography in glaucomatous eyes
    Shigeki Machida
    Department of Ophthalmology, School of Medicine, Iwate Medical University, 19 1 Uchimaru, Morioka, Iwate, Japan
    Invest Ophthalmol Vis Sci 49:2201-7. 2008
    ..To investigate whether there is a significant correlation between the photopic negative response (PhNR) of the electroretinogram (ERG) and retinal nerve fiber layer thickness and optic disc topography in glaucomatous eyes...
  6. doi request reprint Melanoma-associated retinopathy associated with intranasal melanoma
    Shigeki Machida
    Department of Ophthalmology, Iwate Medical University School of Medicine, Uchimaru, Morioka, Japan
    Doc Ophthalmol 122:191-7. 2011
    ..To present a case of melanoma-associated retinopathy (MAR) associated with an intranasal melanoma...
  7. doi request reprint Enhancement of ON-bipolar cell responses of cone electroretinograms in rabbits with the Pro347Leu rhodopsin mutation
    Tomoharu Nishimura
    Department of Ophthalmology, Iwate Medical University School of Medicine, Iwate, Japan
    Invest Ophthalmol Vis Sci 52:7610-7. 2011
    ..To determine how the different stages of retinal processing change after photoreceptor degeneration in rabbits carrying the Pro347Leu rhodopsin mutation (Tg rabbits)...
  8. ncbi request reprint The Effect of intravitreal N-methyl-DL-aspartic acid on the electroretinogram in Royal College of surgeons rats
    Takayuki Ohzeki
    Department of Ophthalmology, Iwate Medical University School of Medicine, Morioka, Iwate, Japan
    Jpn J Ophthalmol 51:165-74. 2007
    ..To investigate how the third-order neuronal response contributes to shaping the electroretinogram (ERG) in the Royal College of Surgeons (RCS) rat...
  9. ncbi request reprint Protective effect of hepatocyte growth factor against degeneration of the retinal pigment epithelium and photoreceptor in sodium iodate-injected rats
    Kouji Ohtaka
    Department of Ophthalmology, Iwate Medical University School of Medicine, Iwate, Japan
    Curr Eye Res 31:347-55. 2006
    ..To investigate the possible protective effect of hepatocyte growth factor (HGF) against degeneration of photoreceptors and retinal pigment epithelium (RPE) in vivo...
  10. ncbi request reprint Functional changes in rod and cone pathways after photoreceptor loss in light-damaged rats
    Tomomi Takahashi
    Department of Ophthalmology, Iwate Medical University, School of Medicine, Morioka, Iwate, Japan
    Curr Eye Res 30:703-13. 2005
    ..To determine the functional changes in the rod and cone pathways after photoreceptor loss by continuous light exposure...
  11. ncbi request reprint Relationship between the s-wave amplitude of the multifocal electroretinogram and the retinal nerve fiber layer thickness in glaucomatous eyes
    Junfuku Nitta
    Department of Ophthalmology, Iwate Medical University School of Medicine, Morioka, Japan
    Jpn J Ophthalmol 49:481-90. 2005
    ..To determine whether a significant correlation exists between the amplitude of the s wave of the multifocal electroretinogram (mfERG) and the retinal nerve fiber layer thickness (RNFLT) in glaucomatous eyes...
  12. doi request reprint Correlation between photopic negative response of focal electroretinograms and local loss of retinal neurons in glaucoma
    Kunifusa Tamada
    Department of Ophthalmology, Iwate Medical University School of Medicine, 19 1 Uchimaru, Morioka Iwate, Japan
    Curr Eye Res 35:155-64. 2010
    ..To determine the relationship between the photopic negative response of the focal electroretinogram and the structural parameters of the inner retina and optic nerve head in glaucoma...
  13. doi request reprint Pharmacological dissection of multifocal electroretinograms of rabbits with Pro347Leu rhodopsin mutation
    Daisuke Yokoyama
    Department of Ophthalmology, Iwate Medical University School of Medicine, Morioka, Iwate, Japan
    Jpn J Ophthalmol 54:458-66. 2010
    ..To determine whether photoreceptor degeneration in transgenic (Tg) rabbits carrying the Pro347Leu rhodopsin mutation alters the neural activity of the middle and inner retinal neurons...
  14. doi request reprint Photopic negative response of full-field and focal macular electroretinograms in patients with optic nerve atrophy
    Kunifusa Tamada
    Department of Ophthalmology, Iwate Medical University School of Medicine, Morioka, Iwate, Japan
    Jpn J Ophthalmol 53:608-14. 2009
    ..To determine alterations of the photopic negative response (PhNR) in the full-field and focal macular electroretinograms (ERGs) of patients with optic nerve atrophy (ONA)...
  15. ncbi request reprint Decrease of blue cone sensitivity in acute idiopathic blind spot enlargement syndrome
    Shigeki Machida
    Department of Ophthalmology, Iwate Medical University School of Medicine, Morioka, Iwate, Japan
    Am J Ophthalmol 138:296-9. 2004
    ..To determine the sensitivity of the blue cone system by static perimetry in patients with unilateral acute idiopathic blind spot enlargement (AIBSE) syndrome...
  16. ncbi request reprint Choroidal circulatory disturbance in ocular sarcoidosis without the appearance of retinal lesions or loss of visual function
    Shigeki Machida
    Department of Ophthalmology, Iwate Medical University School of Medicine, Morioka, Japan
    Jpn J Ophthalmol 48:392-6. 2004
    ..We report a case of ocular sarcoidosis representing a choroidal circulatory disturbance without the appearance of retinal lesions or loss of retinal function...
  17. pmc Identification of autoantibodies against TRPM1 in patients with paraneoplastic retinopathy associated with ON bipolar cell dysfunction
    Mineo Kondo
    Department of Ophthalmology, Nagoya University Graduate School of Medicine, Nagoya, Aichi, Japan
    PLoS ONE 6:e19911. 2011
    ..The purpose of the current study is to investigate whether there are autoantibodies against TRPM1 in the sera of PR patients exhibiting ON bipolar cell dysfunction...
  18. doi request reprint Photopic ERG negative response from amacrine cell signaling in RCS rat retinal degeneration
    Shigeki Machida
    Department of Ophthalmology, Iwate Medical University School of Medicine, Iwate, Japan
    Invest Ophthalmol Vis Sci 49:442-52. 2008
    ....
  19. ncbi request reprint High prevalence of myopia in Japanese patients with idiopathic focal subretinal neovascularization
    Shigeki Machida
    Department of Ophthalmology, Iwate Medical University School of Medicine, 19 1 Uchimaru, Morioka, Iwate 020 8505, Japan
    Retina 26:170-5. 2006
    ..To determine whether myopia is more prevalent in Japanese patients with idiopathic focal subretinal neovascularization (IFSN) than in normal control subjects...
  20. ncbi request reprint Predominant loss of the photopic negative response in central retinal artery occlusion
    Shigeki Machida
    Department of Ophthalmology, Iwate Medical University, School of Medicine, 19 1 Uchimaru, Morioka, Iwate 020 8505, Japan
    Am J Ophthalmol 137:938-40. 2004
    ..To determine how the photopic negative response (PhNR) is affected in central retinal artery occlusion (CRAO)...
  21. ncbi request reprint Third-order neuronal responses contribute to shaping the negative electroretinogram in sodium iodate-treated rats
    Michiko Tanaka
    Department of Ophthalmology, Iwate Medical University School of Medicine, 19 1 Uchimaru, Morioka, Iwate 020 8505, Japan
    Curr Eye Res 30:443-53. 2005
    ..To determine possible mechanisms that shape the negative electroretinograms (ERGs) in rats with photoreceptor degeneration induced by destruction of the retinal pigment epithelium...
  22. ncbi request reprint Punctate outer retinal toxoplasmosis with multiple choroidal neovascularizations
    Takamitsu Fujiwara
    Department of Ophthalmology, Iwate Medical University, School of Medicine, Morioka, Iwate, Japan
    Retina 26:360-2. 2006
  23. ncbi request reprint Neuroprotective effect of hepatocyte growth factor against photoreceptor degeneration in rats
    Shigeki Machida
    Department of Ophthalmology, Iwate Medical University School of Medicine, Iwate, Japan
    Invest Ophthalmol Vis Sci 45:4174-82. 2004
    ..To determine whether hepatocyte growth factor (HGF) has a neuroprotective effect against photoreceptor degeneration in rats...
  24. ncbi request reprint Changes of oscillatory potentials and photopic negative response in patients with early diabetic retinopathy
    Junya Kizawa
    Department of Ophthalmology, Iwate Medical University School of Medicine, Morioka, Iwate, Japan
    Jpn J Ophthalmol 50:367-73. 2006
    ..To investigate the clinical significance of the oscillatory potentials (OPs) and photopic negative response (PhNR) of the electroretinogram (ERG) in patients with early diabetic retinopathy...
  25. doi request reprint Mutton fat-like subretinal precipitates associated with Vogt-Koyanagi-Harada disease
    Kuniko Hamabata
    Department of Ophthalmology, Iwate Medical University, School of Medicine, Morioka 020 8505, Japan
    Ocul Immunol Inflamm 18:44-5. 2010
    ..To report a case of Vogt-Koyanagi-Harada (VKH) disease presenting mutton fat like subretinal precipitates...
  26. ncbi request reprint Selective loss of the photopic negative response in patients with optic nerve atrophy
    Yasutaka Gotoh
    Department of Ophthalmology, Iwate Medical University School of Medicine, Morioka, Iwate, Japan
    Arch Ophthalmol 122:341-6. 2004
    ..To determine how the photopic negative response (PhNR) is altered in patients with optic nerve atrophy...
  27. doi request reprint A case of herpetic epithelial keratitis after triamcinolone acetonide subtenon injection
    Kouhei Hashizume
    Department of Ophthalmology, Iwate Medical University, School of Medicine, Iwate, Japan
    Cornea 28:463-4. 2009
    ..We report a case of herpes simplex virus (HSV) epithelial keratitis that developed after a subtenon triamcinolone acetonide (TA) injection...
  28. doi request reprint Asymmetry of focal macular photopic negative responses (PhNRs) in monkeys
    Yukihide Kurimoto
    Department of Ophthalmology, Nagoya University Graduate School of Medicine, Showa Ku, Nagoya 466 8550, Japan
    Exp Eye Res 88:92-8. 2009
    ..These results suggest that the upper-lower and nasal-temporal asymmetries of PhNR in the primate retina are mainly caused by TTX-sensitive spiking activities of inner retinal neurons...
  29. ncbi request reprint Correlation of retinal function with retinal histopathology following ischemia-reperfusion in rat eyes
    Yasuko Mukaida
    Department of Ophthalmology, Iwate Medical University School of Medicine, Morioka, Iwate, Japan
    Curr Eye Res 28:381-9. 2004
    ..To investigate the relationship between retinal function and histopathology following retinal ischemia-reperfusion in rats...
  30. pmc Vitreous levels of vascular endothelial growth factor in eyes with anterior hyaloidal fibrovascular proliferation
    Takaki Kobayashi
    Department of Ophthalmology, Iwate Medical University School of Medicine, Iwate, Japan
    Clin Ophthalmol 4:1043-6. 2010
    ..To determine the intravitreal levels of vascular endothelial growth factor (VEGF) in eyes with anterior hyaloidal fibrovascular proliferation (AHFVP)...
  31. pmc Retinal ganglion cell function after repeated intravitreal injections of ranibizumab in patients with age-related macular degeneration
    Tomoharu Nishimura
    Department of Ophthalmology, Iwate Medical University School of Medicine, Morioka, Iwate, Japan
    Clin Ophthalmol 6:1073-82. 2012
    ..The purpose of this study was to evaluate the safety of intravitreal ranibizumab injection in patients with age-related macular degeneration...
  32. pmc Monozygotic twins with polypoidal choroidal vasuculopathy
    Shigeki Machida
    Department of Ophthalmology, Iwate Medical University School of Medicine
    Clin Ophthalmol 4:793-800. 2010
    ..To present the first findings in the set of monozygotic twins with polypoidal choroidopathy (PCV)...
  33. ncbi request reprint Observation of the ocular fundus by an infrared-sensitive video camera after vitreoretinal surgery assisted by indocyanine green
    Shigeki Machida
    Department of Ophthalmology, Iwate Medical University School of Medicine, 19 1 Uchimaru, Morioka, Iwate 020 8505, Japan
    Retina 23:183-91. 2003
    ..To investigate how long indocyanine green (ICG) dye remains in the ocular fundus and how the remaining dye interferes with ICG angiographic findings after vitreoretinal surgery assisted by ICG...
  34. pmc Choroidal findings in idiopathic uveal effusion syndrome
    Tomomi Harada
    Department of Ophthalmology, Iwate Medical University School of Medicine, Iwate, Japan
    Clin Ophthalmol 5:1599-601. 2011
    ..We report choroidal findings by means of enhanced depth imaging spectral-domain optical coherence tomography (EDI-OCT) in a patient with idiopathic uveal effusion syndrome (IUES)...
  35. pmc Ophthalmoplegia associated with transorbital penetrating brainstem injury by broken fishing pole
    Aki Kaneko-Ohtaki
    Department of Ophthalmology, Iwate Medical University School of Medicine, Iwate, Japan
    Clin Ophthalmol 5:927-9. 2011
    ..The eye position and eye movements fully recovered within 3 months. These findings suggest a good prognosis for this type of trauma unless life-threatening changes develop...
  36. ncbi request reprint Case of subretinal hemorrhage that developed from a prepapillary vascular loop
    Takamitsu Fujiwara
    Jpn J Ophthalmol 48:175-7. 2004