Original article
Visual outcomes of a new implantable Phakic contact
lens in patients with stable keratoconus
Farideh Doroodgar
1
ꎬ Feizollah Niazi
2
ꎬ Sana Niazi
2
ꎬ Azad Sanginabadi
3
ꎬ Cyrus Alinia
4
引用:Doroodgar Fꎬ Niazi Fꎬ Niazi Sꎬ Sanginabadi Aꎬ Alinia C. 稳
定型圆锥角膜患者植入新型 Phakic 角膜接触镜的视觉效果分
析. 国际眼科杂志 2019ꎻ19(7):1089-1094
1
Negah Specialty Ophthalmic Research Centerꎬ Shahid Beheshti
University of Medical Scienceꎬ Tehran 1544914599ꎬ Iran
2
Shahid Beheshti University of Medical Sciences and Health
Servicesꎬ Chamran Highwayꎬ Daneshjoo Streetꎬ Tehran
1544914599ꎬ Iran
3
Iran University of Medical Sciences and Health Servicesꎬ
Tehran 1544914599ꎬ Iran
4
Department of Public Healthꎬ School of Public Healthꎬ
Urmia University of Medical Sciencesꎬ Urmiaꎬ West
Azerbaijan 1544914599ꎬ Iran
Correspondence to: Azad Sanginabadi. Iran University of
Medical Sciences and Health Servicesꎬ Tehran 1544914599ꎬ
Iran. Sanginabadiazad@ yahoo.com
Received: 2018-09-28 Accepted: 2019-03-08
稳定型圆锥角膜患者植入新型 Phakic 角膜接触
镜的视觉效果分析
Farideh Doroodgar
1
ꎬ Feizollah Niazi
2
ꎬ Sana Niazi
2
ꎬ Azad
Sanginabadi
3
ꎬ Cyrus Alinia
4
( 作者单位:
1
1544914599 伊朗德黑兰 Shahid Beheshti 医科大学ꎬ
Negah 眼科研究中心ꎻ
2
1544914599 伊朗德黑兰ꎬShahid Beheshti
医学科学与卫生服务大学ꎻ
3
1544914599 伊朗德黑兰ꎬ 伊朗医学
与健康服务大学ꎻ
4
1544914599 伊朗西阿塞拜疆ꎬUrmia 医科大学
公共卫生系)
通讯作者:Azad Sanginabadi. Sanginabadiazad@ yahoo.com
摘要
目的:评估可植入式 Phakic 角膜接触镜治疗稳定型圆锥
角膜患者的疗效、安全性、稳定性和可预测性ꎮ
方法:共 14 例患者采用植入式 Phakic 角膜接触镜( IPCL)
矫正屈光不正ꎬ测量了未矫正视力、最佳矫正视力、离焦曲
线、对比敏感度、屈光度及可能的副作用ꎮ 评估结果超过
6moꎮ
结果:平均等效球镜度( SE) 和散光在术后 6mo 末次检查
时由术前-6 94±2 79 DS 和-4 24±1 42 DC 分别变为术
后-0 23±0 43 DS 和 - 1 05 ± 0 49 DCꎮ 术前平均 Snellen
视力为 0 18± 0 10ꎮ 6mo 内未矫正视力和最佳矫正视力
平均值分别为 0 13 ± 0 10 和 0 05 ± 0 15ꎮ 平均安全指数
为 1 11ꎮ 所有眼视力均无降低ꎬ其中 22 眼视力提高超过
1 行ꎮ 20 眼 ( 71 4%) 屈光度在 0 50 D 以内ꎬ 27 眼
( 96 42%) 在±1 00 D 以内ꎮ 术后 1wk 至 6moꎬ 屈光度变
化为-0 23±0 43( 范围: -1 00 至+0 75)ꎮ 6mo 内角膜内
皮细胞( ECL ) 丢失率小于 5%ꎮ 术后 6mo 眼压 ( IOP ) 为
11 32±2 28 mmHgꎮ
结论:Toric 植入式 Phakic 角膜接触镜在矫正与稳定圆锥
角膜相关的近视和近视散光方面具有有效性、安全性和可
预测性ꎮ
关键词:圆锥角膜ꎻ植入式 Phakic 角膜接触镜ꎻ视力
Abstract
• AIM: To assess the efficacyꎬ safetyꎬ stability and
predictability of an implantable Phakic contact lens in
patients with stable keratoconus.
• METHODS: The uncorrected and the best corrected
visual acuityꎬ defocus curveꎬ contrast sensitivityꎬ
refraction and possible side effects were measured in 14
patients after utilizing implantable Phakic contact lens
( IPCL ) to correct refractive errors. The result was
assessed for more than 6mo.
•RESULTS: The mean preoperative spherical equivalent
( SE) and astigmatism got changed from -6. 94 ± 2. 79 DS
and -4.24±1. 42 DC to -0. 23±0. 43 DS and -1. 05 ± 0. 49 DCꎬ
respectively at the last examination after 6mo. Before the
preoperative the mean Snellen visual acuity was 0.18±0.10
LogMAR. The mean uncorrected and the best corrected
visual acuity got changed to 0. 13±0. 10 LogMAR and 0. 05±
0. 15 LogMARꎬ respectively in 6mo. The mean safety
indices were 1. 11. There was no loss of visual acuity in
any of the eyes and 22 eyes ( 78. 5%) gained one or more
lines. Twenty eyes ( 71. 4%) were within 0. 50 D and 27
( 96 42%) were within ±1. 00 D of the desired spherical
equivalent refraction. There was a change in manifest
refraction of -0.23±0.43 ( range from -1. 00 to +0. 75) from
the first week of surgery to 6mo. Contrast sensitivity got
improvement value at 3 per degree ( P <0. 005) after Toric
IPCL implantation. The total 6mo corneal endothelial cell
loss ( ECL) was less than 5%. Intraocular pressure ( IOP)
was 11.32±2.28 mmHg after 6mo.
•CONCLUSION: The clinical consequences of the present
study exhibit the efficacyꎬ safetyꎬ and predictability of
Toric implantable Phakic contact lens in the correction of
myopia and myopic astigmatism related with stable
keratoconus.
• KEYWORDS: keratoconusꎻ implantable Phakic contact
lensꎻ visual acuity
DOI:10.3980 / j.issn.1672-5123.2019.7.01
Citation: Doroodgar Fꎬ Niazi Fꎬ Niazi Sꎬ Sanginabadi Aꎬ Alinia
C. Visual outcomes of a new implantable Phakic contact lens in
patients with stable keratoconus. Guoji Yanke Zazhi ( Int Eye Sci )
2019ꎻ19(7):1089-1094
9 8 0 1
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