方法：确诊为早期圆锥角膜患者46例，其中27例为双眼，19例为单眼，共73眼。对患者配戴框架镜及RGP时，视力矫正幅度的差异进行比较； 对配戴RGP前、后分别进行的2次验光的差值进行比较，并针对RGP对不同性别、年龄人群矫正视力的改变值进行统计学分析，对其中44例患者69眼的角膜厚度与正常人进行比较。

结果：配戴框架镜与配戴RGP的患者视力矫正幅度的差异有统计学意义(P<0.05)。患者配戴RGP前2次验光结果的差值与配戴RGP时2次验光结果的差值相比较，差异有统计学意义(P<0.05)。男性与女性矫正视力幅度差异有统计学意义(P<0.05)。25岁以下与大于等于25岁患者矫正视力幅度差异无统计学意义(P>0.05)。确诊患者角膜厚490μm。

结论：(1)配戴RGP患者矫正视力优于配戴框架镜患者。(2)配戴RGP时验光误差小于不戴镜验光。(3)RGP矫正视力男性优于女性。(4)RGP矫正视力与年龄差异无关。(5)圆锥角膜患者角膜中央区厚度变薄。

METHODS: Forty-six patients 73 eyes were diagnosed with early conical cornea. In statistical analyses, the vision correction of patients with spectacles framework are compared to that of other patients with RGP.

RESULTS: Vision correctionof patients with RGP is statistically different from that of patients who wear framework glasses(P<0.05). The difference values between the patients' two-times of optometry examination results on the condition of wearing RGP were statistically different from the difference values of examination results on condition that patients wear no glasses(P<0.05). In the condition of wearing RGP, vision correction among male patients was statistically better than that among female patients(P<0.05). Vision correction of the patients below 25 was not statistically different from that of the patients above 25(P>0.05). The patients' cornea were 490μm thick, which was statistically different from normal corneal thickness(P<0.05).

CONCLUSION: Corrected visual acuity of patients wearing RGP is better than that of patients with framework glasses. The optometry examination result of patients with RGP is more accurate. Corrected visual acuity of men is better than that of women, on the condition of wearing RGP. Vision correction extent has no difference among patients of different ages, when they wear RGP. The cornea of cone corneal patients is commonly thinner than that of normal persons.