屈光度
2.The target refraction was plano in the dominant eye and -0.75～-2.25 D in the nondominant eye.
3.A unit of measurement of the refractive power of lenses equal to the reciprocal of the focal length measured in meters.
4.According to the pre operative refraction, these eyes were divided into three groups, group Ⅰ, -6 00 to -9 75D;
5.Methods: ①Calculation of Heritability of refractive error: A large Irish family was used as random sample. Heritability was calculated by mid-parent-offspring regression, parent-offspring regression and sequential oligogene linear analysis routine (SOLAR) methods respectively. The original refractive data and the data obtained after normality-transformation were calculated separately.
6.Four groups with BDD of 1.00D step were divided to compare the post-operative BA and stereopsis;
7.There was a tendency for the buckle width to be positive associated with refractive power changes of corneal anterior surface, and the effect was clear in central zone in short terms;
8.The contrast of the residual diopter at operation in vary period reveal of ACL group is P>0.05,LASIK group is P<0.01. Percent of residual diopter within 1 D after 6 months reveal of LASIK is 95%, ACL is 73%.
9.Methods LASIK were performed on 526 case(Il05) eyes with temperal stalk of corneal flap using rotating microkeratome. According to refraction the pations were divided into 3 groups:<-3.00D,-3.25D～-8.00D and -8.25D～12.50D. All of them were followed up for 6 months on complication, visual acuity and refractive.
10.There is no significant difference in the BA and stereopsis after operation while BDD within 2.50～8.00D.
