Visual field testing showed bilat. upper-nasal constriction and relative central scotoma.

视野有明显的鼻侧上部缺陷。

Furthermore, PTP1B deletion significantly reduced gene expression of 3 1-adrenergic receptor subtypes, consistent with blunted constriction to phenylephrine.

此外PTP1B缺乏明显减少31-肾上腺受体亚型基因表达，福林收缩反应迟钝有关。