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Comparison of the Visual Quality of Traditional Ultrasound Biometrics and Lenstar on the Cataract After Pars Plana Vitrectomy

Comparison of the Visual Quality of Traditional Ultrasound Biometrics and Lenstar on the Cataract After Pars Plana Vitrectomy

Status
UNKNOWN
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT03485586
Acronym
PPV
Enrollment
60
Registered
2018-04-02
Start date
2018-04-03
Completion date
2018-10-31
Last updated
2018-04-03

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Diabetic Retinopathy Patients After Vitrectomy

Keywords

cataract, higher order aberration,vitrectomy,diabetic retinopathy

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.

Interventions

DEVICETraditional 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

DEVICELenstar

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

Sponsors

Bojie Hu
Lead SponsorOTHER

Study design

Observational model
CASE_CONTROL
Time perspective
PROSPECTIVE

Eligibility

Sex/Gender
ALL
Healthy volunteers
No

Inclusion criteria

1. Patients with cataract after vitrectomy because of diabetic retinopathy. 2. Patients with good fixation in order to cooperate with various examination.

Exclusion criteria

1. Myopia of \>6 diopters 2. Ocular trauma and other eye disease accepted vitrectomy,such as branch retinal vein occlusion(BRVO),central retinal vein occlusion(CRVO). 3. Vision acuity \<0.1 4. Silicone oil eye

Design outcomes

Primary

MeasureTime frameDescription
the visual quality of the eye after surgeryone monththe visual quality of the eye after surgery through optical path difference scan(OPD Scan)

Countries

China

Contacts

Primary Contactbojie Hu, docter
hbj151617@163.com13612130943
Backup Contactyanhua He, master
heyanhua0104@163.com13920555905

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026