Septon R D
Am J Optom Physiol Opt. 1984 Dec;61(12):745-51. doi: 10.1097/00006324-198412000-00005.
Four hundred forty-seven of five hundred beginning 2nd-year optometry students responded to a survey requesting them to report the equivalent sphere of the lenses neutralizing their most ametropic eye and, if myopic, the age at which they were first prescribed lenses. The population was 20% female, 80% male, and predominately Caucasian. The mean refractive status was -2.21 D with a range from -11.00 to +5.50 D. Seventy-five percent of the respondees were myopes. There was a clear relation between final amount of myopia and the age at which corrective lenses were first prescribed. New myopes did not seek care in equal numbers at each age, but instead clustered in three groups: ages 8 to 9 years, 12 to 13 years, and 19 years. Regression characteristics were different when myopes of 0.12 to 6.00 D were segregated from the total group, suggesting different rates of change, and, by implication, different populations within the group. Females tended to become myopic earlier. There were proportionately more high myopes among the females than among the males.
500名二年级验光专业学生中的447名对一项调查做出了回应，该调查要求他们报告中和其屈光不正程度最高的眼睛所需镜片的等效球镜度数，若为近视，则需报告首次配镜的年龄。调查对象中20%为女性，80%为男性，且主要是白种人。平均屈光状态为-2.21D，范围从-11.00D至+5.50D。75%的受访者为近视患者。最终近视度数与首次配镜年龄之间存在明显关联。新近视患者在各年龄段寻求治疗的人数并不相同，而是集中在三个年龄段组：8至9岁、12至13岁和19岁。当将0.12至6.00D的近视患者从总群体中分离出来时，回归特征有所不同，这表明变化率不同，进而意味着该群体内存在不同人群。女性往往近视更早。女性中高度近视者的比例高于男性。
