Cataract
Conditions
Interventions
Normal population:Biological measurement of eyes
cataract:Phaco+IOL implantation
Sponsors
Eye college of Ophthalmology, Central South University
Eligibility
Sex/Gender
All
Age
18 Years to 90 Years
Inclusion criteria
Inclusion criteria: 1. Measurement and calculation of ocular biometric value astigmatism of anterior and posterior corneal surface in Chinese population: 1) More than 18 years old; 2) len nucleus less than IV; 3) without cornea disease, uvea disease, retinopathy, glaucoma and other eye diseases; 4) without corneal refractive surgery and corneal plastic lens; 5) without other eye surgery; 6) follow up on time and have good compliance. 2. Conversion ratio of cornea astigmatism and intraocular lens astigmatism: 1) age related cataract patients; 2) len nucleus less than IV; 3) without cornea disease, pterygiumuvea disease, retinopathy, glaucoma and other eye diseases; 4) without corneal refractive surgery and corneal plastic lens; 5) without other eye surgery and ocular trauma; 6) follow up on time and have good compliance.
Exclusion criteria
Exclusion criteria: 1. Measurement and calculation of ocular biometric value astigmatism of anterior and posterior corneal surface in Chinese population: 1) with corneal lesions, ocular inflammation; 2) moderate or severe dry eyes; 3) with the history of ocular trauma or eye surgery; 4) poor coordination or poor fixation. 2. Conversion ratio of cornea astigmatism and intraocular lens astigmatism: 1) poor general condition, intolerance of operation; 2) with corneal lesions, ocular inflammation, pterygium, vineal disease, retinopathy, glaucoma, and other eye lesions; 3) with the history of ocular trauma or eye surgery.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Axial length (AL);keratometric power (Ks, Kf);Anterior chamber depth (ACD);keratometric power (Ks, Kf);Anterior chamber depth (ACD);keratometric power (simk);keratometric power (true net power);keratometric power (total corneal refractive power);barrett-IOL master;barrett-simk;cornea back keratometric power;Axial length (AL);keratometric power (Ks, Kf);Anterior chamber depth (ACD);Axial length (AL);Anterior corneal surface powers;posterior corneal surface powers;postoperative astigmatism;Axial length (AL); | — |
Secondary
| Measure | Time frame |
|---|---|
| Corneal thickness;angle Kappa;WTW; | — |
Countries
China
Contacts
Public ContactXu Chen
Eye college of Ophthalmology, Central South University; Shanghai Aier Eye Hospital
Outcome results
None listed