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Contrast sensitivity function (CSF) for sinusoid gratings of varying spatial frequencies was determined for each eye of 21 cases with unilateral amblyopia. The CSF of all amblyopic eyes, except one, showed reduced sensitivity when compared with the non-amblyopic eye of the same person. The curve showed reduction more significantly at middle and high spatial(More)
OBJECTIVE To study the effect and safety of polylacticglycolide acid copolymer (PLGA) and recombinant human bone morphogenetic protein 2 (rhBMP-2) as implanted biomaterials for reconstruction orbital floor defects in sheep and find the relationship between implant materials degradation and orbital floor defects restoration. METHODS Nine sheep (eighteen(More)
OBJECTIVE To investigate the clinical characteristics of moderate and severe Marcus-Gunn jaw winking synkinesis and it surgical management. METHODS Thirty-three patients with Marcus-Gunn syndrome were enrolled from 1997 to 2003 in Zhongshan Ophthalmic Center. The clinical characteristics were analyzed based on the records. Unilateral levator excision and(More)
Spectral characteristics of X-linked Dichromats (13 protanopes, 20 deuteranopes) were studied with spectral ERG. The results are as follows: The maximal spectral response of the b-wave in protanopes tended to shift toward the short wavelength side and the sensitivity to long wavelengths decreased obviously. The ratio value of the amplitude in 500 nm and in(More)
Studies of spectral electroretinograms in central serous retinopathy (CSR) and hereditary macular degeneration (HMD) showed that the b-wave amplitudes of most wavelengths of CSR were significantly decreased as compared with normal controls, and those of HMD were obviously lower than the normal values. Patients of HMD with type-A color vision defects (CVD)(More)
  • N N Tian
  • [Zhonghua yan ke za zhi] Chinese journal of…
  • 1990
The contrast sensitivity function (CSF) was determined with vertical stationary sinusoidal gratings of 6 spatial frequencies of 0.5, 1, 3, 6, 11.4 and 22.8 cycles/degree in 31 patients (50 eyes) with open-angle glaucoma. The data of CSF were compared with visual acuity and visual field determinations. It was found that CSF could be abnormal in subjects with(More)
  • N N Tian
  • [Zhonghua yan ke za zhi] Chinese journal of…
  • 1993
Studies of spectral electroretinograms in central serous chorioretinopathy (CSC) and hereditary macular degeneration (HMD) found that the b-wave amplitudes of CSC for most wavelengths were significantly decreased as compared with normal controls, and the b-wave amplitudes of HMD for most wavelengths were obviously lower than the normal values. Patients of(More)