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.
Study Type
OBSERVATIONAL
Enrollment
60
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
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
Tianjin Medical University Eye Hospital
Tianjin, Tianjin Municipality, China
RECRUITINGthe visual quality of the eye after surgery
the visual quality of the eye after surgery through optical path difference scan（OPD Scan）
Time frame: one month
the visual quality of the eye after surgery
the visual quality of the eye after surgery through optical path difference scan（OPD Scan）
Time frame: three month
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