PPV: Comparison of the Visual Quality of Traditional Ultrasound Biometrics and Lenstar on the Cataract After Pars Plana Vitrectomy
Study Details
Study Description
Brief Summary
Comparison of the visual quality of traditional ultrasound biometrics and lenstar on the cataract patients with diabetic retinopathy after vitrectomy in the 3 months later.To evaluate the clinical value of lenstar in post-vitrectomy patients.
Condition or Disease | Intervention/Treatment | Phase |
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Study Design
Arms and Interventions
Arm | Intervention/Treatment |
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Group:Traditional ultrasonic biological The measurement of axial length was performed in 60 eyes (30 eyes for each group) with senile cataract of vitrectomised eye of diabetic retinopathy using lenstar and traditional ultrasonic biological combined with cornea curvimeter.In this group,we use traditional ultrasonic biological combined with cornea curvimeter to measure the ocular parameter. |
Device: Traditional ultrasound biometrics
To evaluate the clinical feasibility of using a new optical coherence interferometry ( lenstar ),comparing with traditional ultrasonic biometry and keratometry in the accuracy and characteristics for intraocular lens calculation of cataract after PPV
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Group:Lenstar The measurement of axial length was performed in 60 eyes (30 eyes for each group) with senile cataract of vitrectomised eye of diabetic retinopathy using lenstar and traditional ultrasonic biological combined with cornea curvimeter.In this group,we use lenstar to measure the ocular parameter. |
Device: Lenstar
To evaluate the clinical feasibility of using a new optical coherence interferometry ( lenstar ),comparing with traditional ultrasonic biometry and keratometry in the accuracy and characteristics for intraocular lens calculation of cataract after PPV
|
Outcome Measures
Primary Outcome Measures
- the visual quality of the eye after surgery [one month]
the visual quality of the eye after surgery through optical path difference scan(OPD Scan)
- the visual quality of the eye after surgery [three month]
the visual quality of the eye after surgery through optical path difference scan(OPD Scan)
Eligibility Criteria
Criteria
Inclusion Criteria:
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Patients with cataract after vitrectomy because of diabetic retinopathy.
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Patients with good fixation in order to cooperate with various examination.
Exclusion Criteria:
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Myopia of >6 diopters
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Ocular trauma and other eye disease accepted vitrectomy,such as branch retinal vein occlusion(BRVO),central retinal vein occlusion(CRVO).
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Vision acuity <0.1
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Silicone oil eye
Contacts and Locations
Locations
Site | City | State | Country | Postal Code | |
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1 | Tianjin Medical University Eye Hospital | Tianjin | Tianjin | China |
Sponsors and Collaborators
- Bojie Hu
Investigators
- Study Director: bojie Hu, docter, Tianjin Medical University Eye Hospital
Study Documents (Full-Text)
None provided.More Information
Publications
None provided.- HBJ 161718