Auditing of Poor Visual Outcomes After Un-eventual Cataract Surgery

• Conditions: Cataract

• Registration Number: NCT03593616
• Lead Sponsor: Assiut University

Brief Summary

Globally, cataract is the major cause of blindness accounting for 51% of total blindness and there are regional variations in it. Today, cataract surgery is a highly successful and cost-effective procedure, which enhances both the vision and quality of life of patients.

Visual acuity alone should not be used as a criterion for planning cataract surgery, since visual acuity and function do not necessarily correlate. Therefore, there is a need to review our criteria for management.

Based on recent studies, at least 90% of the patients undergoing cataract surgery obtain a postoperative visual acuity of 6/12 or better in the absence of coexisting ocular pathology.

A number of previous studies have looked at the effect of risk factors on visual outcomes following cataract surgery. Risk factors commonly associated with worse visual outcomes include: age-related macular degeneration, diabetic retinopathy, corneal opacity/pathology, older age, female sex, previous vitrectomy, previous retinal detachment surgery, alpha-blockers, complex surgery, intraoperative complications and refractive surprise.

Detailed Description

Not available

Study Timeline

• Status Verified: 2018-07
• Study First Submitted: 2018-07-11
• Study First Submitted QC: 2018-07-11
• Last Update Submitted: 2018-07-11
• Study First Posted: 2018-07-20
• Last Update Posted: 2018-07-20
• Study Start: 2018-09
• Primary Completion: 2019-08
• Study Completion: 2019-11

Recruitment & Eligibility

• Status: UNKNOWN
• Sex: All
• Target Recruitment: 300

Inclusion Criteria

• Patients with any type of cataract.

Exclusion Criteria

• Patients with diabetic retinopathy.
• Patients with previous ocular surgeries or pathologies.
• Patients with pre-operative visual acuity (no perception of light)

Study & Design

• Study Type: OBSERVATIONAL
• Study Design: Not specified

Primary Outcome Measures

Name	Time	Method
The visual acuity of patients after cataract surgery	4 weeks	measured by snellen's chart