原发性前房角关闭眼在施行激光周边虹膜切除术后前房角关闭的发生率及发病机制的研究
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case series study,prophylactic LPI Was
performed
patients with
PAC in the
Department
of Ophthalmology at Peking Union
Medical College Hospital.Ultrasound
out before
spur-ciliary PAC
distance(TCPD),iris distance(ID),scleral
process
distance(SSCPD)and trabeeular-ciliary
angle(TCPA).(2)The according
eyes mentioned above were classified into two groups angle closure after LPI,severe 23
中央前房深度(anterior
chamber
depth,ACD),附着性前房角关闭(iridotrabecular
opening
contact,ITC)的范围,前房角开放距离(angle
睫状突距离(trabecular-ciliary
process
distance,AOD),小梁网-
distance,TCPD),周边部虹膜厚度(iris
3
中国协和医科大学硕士研究生毕业论文
摘要
后的前房角关闭的主要原因。
关键词:原发性前房角关闭,激光周边虹膜切除术,超声活体显微镜,睫状突前 位
英文摘要(Abstract)
Purpose:To evaluate the prevalence of angle closure in eyes with primary
中国协和医科大学硕士研究生毕业论文
摘要
中文摘要
目的:了解原发性前房角关闭(primary angle closure,PAC)眼在施行预防性激光
周边虹膜切除术(1aser
peripheral
iridotomy,LPI)后前房角关闭的发生率,并通
过比较PAC眼施行LPI后前房角关闭较轻者与较重者之间、PAC眼与正常前房
biomicroscopy
COBM)examination Was carried
randomly LPI Were selected
eye
and
2 weeks after LPI in
these eyes.One
of each
subject
was
ห้องสมุดไป่ตู้
measured.UBM
parameters before
(34/39)的PAC眼在LPI后暗室下UBM检查仍有≥1个钟点位的附着性前房
角关闭。(2)在正常前房深度组、PAC眼LPI后前房角关闭轻度组和重度组之间
的比较中,TCPD和TCPA呈递减趋势,组间差异具有统计学意义(尺0.0001);
ACD在正常前房深度组明显大于两组PAC眼(P<O.0001),但是PAC眼两组之
among
PAC eyes with severe LPI and normal
angle
closure after LPI,PAC eyes with mild
angle closure after
Participants and
subjects.
on
Methods:(1)Based
the principle of prospective intervention in 39
compared
with those after LPI,including iridotrabecular opening
contact(ITC),iris—ciliary
trabecular-ciliary process process
process
contact(ICPC),angle
distance(AOD),
PAC眼,按LPI后前房角关闭的严重程度分为重度组(前房角关闭钟点数>3钟
点位,23眼)和轻度组(前房角关闭钟点数≤3钟点位,16眼)。比较PAC眼 LPI后前房角关闭轻度组、重度组和正常前房深度组(20眼)三组之间的UBM
前房及前房角参数,包括ACD、ID、TCPD、TCPA和SSCPD。
结果:(1)79.49%(31/39)的PAC眼在LPI后前房角有不同程度的增宽。87.18%
间的差异无统计学意义(仁O.7170);ID和SSCPD在三组间的差异无统计学意
义(尸>O.05)。PAC眼LPI后前房角关闭钟点位数与TCPD和TCPA的相关系数 分别为.0.4312(P=-0.0069)和.0.3958(P=-O.0126)。 结论:PAC眼LPI后的前房角关闭发生率极高。睫状突前位是导致PAC眼LPI
深度眼之间的一些前房和前房角结构的参数,探讨PAC眼施行LPI后前房角关 闭的可能机制。 对象和方法:(1)应用前瞻性干预性系列病例研究。对39名来自北京协和医院 眼科门诊就诊的PAC患者施行LPI,并比较术前和术后两周的暗室下超声活体显
微镜(ultrasound biomicroscopy,UBM)图像中获得的前房和前房角参数,包括
distance,ID),虹膜.睫状突接触(iris.ciliary process contact,ICPC)的发生率,巩
膜突-睫状突距离(sclera
spur-ciliary process
distance,SSCPD),小梁网一睫状突角
(trabecular-ciliary process
angle,TCPA)。(2)应用病例对照研究。将上述39只
angle
the
closure(PAC)after laser
peripheral
iridotomy(LPI)and
to
determine
pathogenesis of this condition by comparing the anterior chamber and angle
parameters
to the severity of clock positions,
one(angle closure range after LPI≥4
closure
eyes)and
mild
one(angle
range after LPI≤3
clock positions,1 6