Comparison of posterior capsule opacification after two different surgical methods of cataract extractio
Completed
- Conditions
- CataractsEye DiseasesOther cataract
- Registration Number
- ISRCTN88815601
- Lead Sponsor
- niversity Hospital in Hradec Králové (Czech Republic)
- Brief Summary
Not available
- Detailed Description
Not available
Recruitment & Eligibility
- Status
- Completed
- Sex
- All
- Target Recruitment
- 75
Inclusion Criteria
1. Bilateral non-brunescent cataract (according to the Buratto classification - a cataract grade less than 5)
2. Both eyes with cataract with similar density grade
3. No other severe ocular pathology potentially affecting visual acuity (patients with mild age-related macular degeneration [ARMD] were not excluded)
4. Age 40 or older
5. Both males and females
6. Written informed consent to surgery and willing to participate in the study
7. Good compliance
Exclusion Criteria
1. Brunescent cataract
2. Severe ocular pathology potentially affecting visual acuity
3. Unable to achieve good artificial mydriasis
4. No informed consent
Study & Design
- Study Type
- Interventional
- Study Design
- Not specified
- Primary Outcome Measures
Name Time Method The following will be measured at 1, 2, 3 and 5 years after surgery: <br>1. EPCO index for minimal, mild, moderate and severe opacities and total EPCO index for PCO under entire IOL optic (score 0 = no opacities, 4 = maximal opacities)<br>2. OSCA score. The possible range is from 0 (no PCO) to approximately 15 (practical expected maximum). Typical OSCA values for images with very little or no PCO is around 0.5. Values for patients that are deemed to warrant laser capsulotomy is typically around 4 - 5.<br>3. Best corrected visual acuity measured using Snellen optotypes at 6 metres distance
- Secondary Outcome Measures
Name Time Method The Nd:YAG laser capsulotomy rate at 1, 2, 3 and 5 years after surgery. This shows how many capsulotomies are needed for treatment of PCO-induced decrease of BCVA.