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

Diabetic Retinopathy Patients After Vitrectomy Clinical Trial

— PPV  

Official title:

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

Clinical Trial Details — Status: Recruiting

Administrative data

• NCT number: NCT03485586
• Other study ID #: HBJ 161718
• Status: Recruiting
• First received: March 24, 2018
• Last updated: April 1, 2018
• Start date: April 3, 2018
• Est. completion date: October 31, 2018

Study information

• Verified date: April 2018
• Source: Tianjin Medical University Eye Hospital
• Contact: bojie Hu, docter
• Phone: 13612130943
• Email: hbj151617[@]163.com
• Is FDA regulated: No
• Study type: Observational

Clinical Trial 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.

Recruitment information / eligibility

• Status: Recruiting
• Enrollment: 60
• Est. completion date: October 31, 2018
• Est. primary completion date: July 31, 2018
• Accepts healthy volunteers: No
• Gender: All
• Age group: N/A and older

Eligibility

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

Related Conditions & MeSH terms

• Capsule Opacification
• Cataract
• Diabetic Retinopathy
• Diabetic Retinopathy Patients After Vitrectomy
• Retinal Diseases

Intervention

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
• 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

Locations

Country	Name	City	State
China	Tianjin Medical University Eye Hospital	Tianjin	Tianjin

Sponsors (1)

Lead Sponsor	Collaborator
Bojie Hu

Country where clinical trial is conducted

China, 

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	the visual quality of the eye after surgery	the visual quality of the eye after surgery through optical path difference scan(OPD Scan)	one month
Primary	the visual quality of the eye after surgery	the visual quality of the eye after surgery through optical path difference scan(OPD Scan)	three month