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作 者:邢秀丽[1] 高祥璐[1] 张艳龙[1] 崔鹏云[1] 曹瀚坤 张玉洁[2]
机构地区:[1]天津医科大学眼科医院,天津300384 [2]天津医科大学,天津300070
出 处:《中国实用眼科杂志》2016年第10期1049-1053,共5页Chinese Journal of Practical Ophthalmology
摘 要:【摘要】目的探讨附加+0.75D对近视眼不同距离调节滞后及阅读过程中调节波动的影响。方法临床病例对照研究。对2015年9—11月在天津医科大学就读的50名在校学生进行规范验光后做基本的双眼视功能检查,全矫和附加+0.75D双眼视状态下将视标分别放在50、40、33、25、20cm距离下测量左右眼的调节滞后量,然后在40cm距离处分别阅读20min文本,连续测量左右眼的调节反应。结果以右眼为研究对象,全矫和附加+0.75D状态下不同距离(除20cm)的调节滞后量随着距离减少,调节滞后量增大。每个距离附加+0.75D后调节滞后量都减少,差异有统计学意义(t=3.900、3.737、5.149、6.022、5.445,P〈0.05)。全矫状态下ESO组调节滞后量大于EXO组,除25cm、20cm差异有统计学意义(t=-4.002、-2.569、-2.440,P〈0.05)。40cm状态下阅读,附加+0.75D后调节波动量减少,差异有统计学意义(t=3.465,P〈0.05),全矫状态下调节波动量EMM组较LOM组MOM组小,差异有统计学意义(x^2=23.325,P=0.000),调节波动量与调节幅度呈负相关关系(r=-0.500,P〈0.05)。结论近视者在调节幅度正常的情况下视近时可戴附加+0.75D的镜片,防止近视进一步进展,对于内隐斜更为有效,对于调节幅度不正常者有待进一步研究。Objective To clarify the effect of addition +0.75D lenses on different distance of ac- commodative lag and accommodative fluctuations during near reading. Methods Clinical case control study. There were 50 students from Tianjin Medical University investigated during September to No- vember 2015, professional optometry and binocular vision were performed on the 50 students. The accommodative lag was measured when they viewed binocular vision in completely corrected lenses and addition +0.75D lenses states, the target was put on 50, 40, 33, 25, 20cm. Open field infared autorefractor measured accommodative response when the subjects read in 40cm. Results With right eyes as subjects. All the subjects performed the increasing of the accommodative lag with the de- creasing target distance (except 20cm). Accommodative lag decreased when viewed target at addition +0.75D lenses state in every distance (t =3.900, 3.737, 5.149, 6.022, 5.445, P 〈0.05). Under the completely corrected lenses state, the accommodative lag of the esophoria were significantly greater than the exophoria (except 25cm and 20cm) (t =-4.002, -2.569, 2.440, P 〈0.05). Accommodative fluc- tuations also decreased when reading at 40cm with addition +0.75D lenses (t =3.465, P 〈0.05). Un- der the completely corrected lenses state, the accommodative fluctuations in the emmetiopic group were significantly lower than in the low myopia and moderative myopia. Accommodative fluctuations were negatively correlated with amplitude of accommodation (r =-0.500, P 〈0.01). Conclusions In order to prevent degenerative myopia, the myopia with normal amplitude of accommodation can wear addition +0.75D lenses when they read in near distance, especially for the esophoria. Whether the abnormal amplitude of accommodation can wear addition +0.75D lenses need to be elucidated in the future study.
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