Wild J M, Moss I D
Department of Vision Sciences, Aston University, Birmingham, UK.
Graefes Arch Clin Exp Ophthalmol. 1996 Mar;234(3):141-9. doi: 10.1007/BF00462025.
the extent of any learning and fatigue effects in blue-on-yellow (B-Y) perimetry is unknown. The within- and between-eye changes in B-Y normal sensitivity at a single visit and between visits was investigated as a function of previous experience in white-on-white (W-W) perimetry and of subject age.
Sixty-one normal subjects 22 young (range 20-34 years) and 39 elderly (range 51-80 years)-- assigned to one of four groups based upon perimetric experience and age underwent B-Y perimetry on four separate occasions using Program 30-2 of a modified Humphrey Field Analyser 640. Perimetry was performed for both eyes on three consecutive days and again one week later. Global, hemifield and annular mean sensitivities and global short-term fluctuation were calculated for each eye at each visit.
Mean sensitivity was higher in the first eye examined and increased over the 3 days. The increase in mean sensitivity was similar for each eye and was independent of perimetric experience and age. Short-term fluctuation decreased over the 3 days, regardless of eye and experience, but was more pronounced for the younger age group. The extent of all improvements varied considerably between subjects.
Improvements in B-Y perimetric performance occurred as the familiarity with the test increased, regardless of previous W-W experience. Failure to account for such improvement could reduce the efficiency of B-Y perimetry.
蓝黄视野检查中任何学习和疲劳效应的程度尚不清楚。研究单次就诊时以及不同就诊之间双眼蓝黄正常敏感度的变化，作为白色视野检查既往经验和受试者年龄的函数。
61名正常受试者（22名年轻人，年龄范围20 - 34岁；39名老年人，年龄范围51 - 80岁），根据视野检查经验和年龄分为四组之一，使用改良的Humphrey视野分析仪640的程序30 - 2在四个不同时间进行蓝黄视野检查。连续三天对双眼进行视野检查，一周后再次检查。每次就诊时计算每只眼睛的总体、半视野和环形平均敏感度以及总体短期波动。
检查的第一只眼睛平均敏感度较高，且在三天内有所增加。每只眼睛平均敏感度的增加相似，且与视野检查经验和年龄无关。短期波动在三天内下降，无论眼睛和经验如何，但在较年轻年龄组中更明显。所有改善的程度在受试者之间差异很大。
随着对测试的熟悉程度增加，蓝黄视野检查表现有所改善，无论既往白色视野检查经验如何。未考虑到这种改善可能会降低蓝黄视野检查的效率。
