Eyes with cataract and preexisting regular corneal astigmatism between 1.0 and 3.0 diopters (D) Eye Diseases
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: 1. Age-related cataract with preoperative corneal astigmatism between 1.0 and 3.0 D and nucleus sclerosis up to grade 3 2. 40-90 years old
Exclusion criteria
Exclusion criteria: 1. Patients with history of previous ocular surgery 2. Pupil size less than 7.5 mm after dilatation 3. Anterior chamber less than 2.25 mm 4. Compromised endothelial cell functio 5. Corneal disorder 6. Complicated cataract 7. Glaucoma 8. Pseudoexfoliation 9. Severe myopia 10. Diabetic retinopathy
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| 1. Postoperative IOP is measured using the Computerized Tonometer at 2 hours, 1 day, 1 week, 1 month, and 3 months after surgery 2. Postoperative UDVA is measured using Snellen or “E” chart 3 months after surgery 3. ECD is measured using SP-3000P, Topcon Corp. Tokyo, Japan at 3 months after surgery 4. Refractive astigmatism is measured using keratometry: IOLMaster at 3 months after surgery 5. IOL rotation is measured using a slit lamp at 3 months after surgery 6. Time taken for IOL implantation is measured using records at time of surgery | — |
Secondary
| Measure | Time frame |
|---|---|
| Astigmatism vector analysis is measured using Thibos and Horner’s power vector notation at 3 months after surgery | — |
Countries
China