Cataract (crystalline lens reconstructive operation by phacoemulsification)
Conditions
Interventions
None listed
Sponsors
Chukyo Eye Clinic
Eligibility
Sex/Gender
All
Inclusion criteria
Inclusion criteria: (1) 1 case/1 eye of patient who had crystalline lens reconstructive operation by phacoemulsification7 (2) Patient with SN60WF (AcrySof IQ) inserted and fixed in lenticular capsule. (3) Patient without opacity in optic media except for crystalline lens with cataract (4) Patient who can expect to obtain postoperative best corrected vision more than 0.8 (5) Patient who can be followed-up postoperatively
Exclusion criteria
Exclusion criteria: (1)Patient who is planning to have other ocular surgery within 3 months after cataract surgery (2)Patient who underwent ocular surgery such as uncontrolled glaucoma, progressive diabetic retinopathy, uveitis, retinal detachment, rubeosis iridis, pterygium, corneal dystrophy, corneal transplant, keratorefractive surgery, or with severe dry eye. (3)Corneal astigmatism more than 2.0D (4)Patient with ocular disease or takes medication which may affect visual acuity. (5)Patient who experienced Zinn's zonule rupture, posterior capsule rupture, vitreous prolapse, hyphema, and unable to completely fix IOL optic and haptics in lens capsule during surgery. (6)Patient who physician considers unsuitable due to systemic or ophthalmic disease
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Predicted refractive error calculated by each IOL calculation formula (ray tracing, SRK/T,Haigis,Barrett Universal II) Predicted refractive error: spherical equivalent difference between predicted refractive value and manifest refraction 1-3 months after surgery | — |
Secondary
| Measure | Time frame |
|---|---|
| 1.Measurable rate(all eyes, nucleus hardness greater than 4) 2.Best corrected visual acuity 3.As subanalysis, axial length of eye is divided into groups (shorter than 22mm, 22-26mm, longer than 26mm) and predicted refractive error is compared | — |
Countries
Japan
Contacts
Public ContactKazuo Ichikawa
Chukyo Eye Clinic Chukyo Eye Clinic
Outcome results
None listed