Cataract
Conditions
Interventions
The experimental group:Routine cataract surgery combined with limbal relaxing incisions using predicted postoperative astigmatism as the reference for astigmatism correction
The control group:Routine cataract surgery combined with limbal relaxing incisions using simulated keratometry as the reference for astigmatism correction.
Sponsors
Sichuan Academy of Medical Sciences & Sichuan Provincial People's Hospital
Eligibility
Sex/Gender
All
Age
18 Years to No maximum
Inclusion criteria
Inclusion criteria: 1. Age over 18 years. 2. Regular corneal astigmatism, with predicted postoperative astigmatism or simulated keratometry greater than 0.5 D. 3. Participants must be in relatively good general health to ensure the safety and feasibility of the surgical procedure. 4. Participants must be willing to undergo preoperative assessments and comply with postoperative follow-up observations.
Exclusion criteria
Exclusion criteria: 1. Presence of irregular corneal astigmatism due to corneal diseases (e.g., keratoconus, corneal degeneration, corneal scar) or a history of corneal surgery (e.g., corneal refractive surgery, corneal transplantation). 2. History of severe ocular diseases, such as lens subluxation/dislocation, endophthalmitis, or glaucoma. 3. History of other ocular surgeries, such as intraocular surgery, or a history of ocular trauma. 4. Patients intolerant to the surgical procedure. 5. Patients who experience intraoperative or postoperative complications.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Postoperative uncorrected visual acuity;Postoperative best corrected visual acuity;Postoperative astigmatism value; | — |
Secondary
| Measure | Time frame |
|---|---|
| Refraction spherical equivalent;Keratometry; | — |
Countries
China
Contacts
Public ContactQu Chao
Sichuan Academy of Medical Sciences & Sichuan Provincial People's Hospital
Outcome results
None listed