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

Bojie Hu

Status: Unknown

Conditions: Diabetic Retinopathy Patients After Vitrectomy

Treatments: Device: Traditional ultrasound biometrics; Device: Lenstar

Study type: Observational

Funder types: Other

Identifiers

NCT03485586

HBJ 161718

Details and patient eligibility

About

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.

Enrollment: 60 estimated patients

Sex: All

Volunteers: No Healthy Volunteers

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

Trial design

60 participants in 2 patient groups

Group:Traditional ultrasonic biological

Description:

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.

Treatment:

Device: Traditional ultrasound biometrics

Group:Lenstar

Description:

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.

Treatment:

Device: Lenstar