Skip to content

Evaluation of the effects of multifocal lenses on visual performance in patients affected by bilateral cataract and treated with phacoemulsification (cataract surgery)

Evaluation of the effects of multifocal lenses on visual performance in patients affected by bilateral cataract and treated with phacoemulsification: future prospects of a surgical treatment more oriented to the real refractive needs of the patient

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
ISRCTN
Registry ID
ISRCTN20862627
Enrollment
20
Registered
2021-05-17
Start date
2018-05-30
Completion date
Unknown
Last updated
2022-09-26

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Cataract surgery (phacoemulsification) Surgery

Interventions

We recruit candidates for bilateral cataract extraction surgery. Each subject will undergo complete ophthalmologic evaluation in the 90 days before the procedure (as part of a standard preoperative pr
p > 0.1) ? corneal surface topography with Topcon Aladdin® ? photopic and mesopic pupillometry with Topcon Aladdin® Each patient will receive a preoper

Sponsors

University of Turin
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: 1. Bilateral cataract 2. Age >50 years 3. Regular corneal astigmatism, <1.00 D 4. K angle =1 mm

Exclusion criteria

Exclusion criteria: 1. Patient with optical means opacities other from cataract 2. Age-related macular degeneration 3. Previous history of ocular surgery 4. Irregular corneal astigmatism 5. Amblyopia 6. Concurrent neurologic or neuromuscular diseases (cerebral ictus, myasthenia, etc.) 7. Uncontrolled open/close-angle glaucoma 8. Severe ocular complications related to diabetes (retinopathy, macular oedema, vitreal hemorrhage, etc.) 9. Patients with operative or postoperative complications 10. Patients with a pupil diameter of = 5,2 mm in mesopic lighting conditions

Design outcomes

Primary

MeasureTime frame
1. Postoperative uncorrected and best-corrected visual acuity for far distances is assessed with LogMar and ETDRS charts for each eye at 1 day, 7 days, 1 month, 3 months and 6 months 2. Postoperative uncorrected and best-corrected visual acuity for intermediate distances (60 cm) is assessed using the Jeager eye chart for each eye at 1 day, 7 days, 1 month, 3 months and 6 months 3. Postoperative uncorrected and best-corrected visual acuity for near distances (33cm) is assessed using the Jaeger eye chart for each eye at 1 day, 7 days, 1 month, 3 months and 6 months 4. Postoperative binocular uncorrected visual acuity for far (4 m), intermediate (60 cm) and near (33 cm) distances at 1 month, 3 months and 6 months

Secondary

MeasureTime frame
1. Rate of visual disturbances was assessed with specific questionnaires with scores from 0 (for absence of disturbances) to 5 (for maximal difficulty) at 1 month, 3 months and 6 months after sugery 2. Spectacle dependence rate at far, intermediate and near visual distances was assessed with specifict questionnaires with scores from 0 (total independence) to 5 (for maximal dependence) at 1 month, 3 months and 6 months after sugery 3. Global visual satisfaction was assessed with specifict questionnaires with scores from 0 (absolutely not satisfied) and 10 (fully satisfied) at 1 month, 3 months and 6 months after sugery 4. Difficulties in everyday activities was assessed with specifict questionnaires with scores from 0 (total ease) to 5 (maximal difficulty) at 1 month, 3 months and 6 months after sugery

Countries

Italy

Contacts

Public ContactRaffaele Nuzzi
raffaele.nuzzi@unito.it+39 (0)116332220

Outcome results

None listed

Source: ISRCTN (via WHO ICTRP) · Data processed: Feb 11, 2026