介绍巢国俊教授诊治视网膜色素变性临床验案。阳气为人之根本，视网膜色素变性患者本质为脾肾阳虚，阳虚气化不足导致阴邪内生，阴盛则寒，内生阴邪加之外寒之邪，寒性凝滞，进而影响阳气的通达及气血的运行，气血不能到达、濡养视网膜周边，故有夜盲之象。临床诊治视网膜色素变性应当以阴阳为纲，补虚扶本，兼顾气血，遵循“病在阳者，扶阳抑阴”，先温补脾肾之阳，固守先后天之本，扶阳消阴，散邪通络，阳气通达，阴实消散，气血畅通，则视物夜盲改善。

A proved case by Professor CHAO Guojun in treating retinitis pigmentosa was introduced.Yang qi is the root of man,and therefore the essence of retinitis pigmentosa is yang deficiency of the spleen and kidney.Yang deficiency leads to insufficient qi transformation and internal generation of yin evil.Excessive yin causes cold,and with the external cold evil,for cold evil is ongealing and stagnating,movement of yang qi and circulation of qi and blood are affected.Qi and blood can’t reach and nourish the periphery of the retina,so that night blindness occurs.In clinical treatment of retinitis pigmentosa,yin and yang should be the major principle,which includes tonifying deficiency and supporting the foundation,taking into account both qi and blood,following the principle of“supporting yang and suppressing yin when the disease is in yang”,first warming and tonifying the yang of the spleen and kidney,guarding the innate and acquired foundation,supporting yang and eliminating yin,dispersing evil and unblocking collaterals.Therefore,yang qi moves smoothly,and yin excess is resolved,qi and blood circulate fluently,manifesting as the improvement of eye sight and night blindness.