Cataract, Intraocular Lens Opacification
Conditions
Brief summary
A prospective randomized controlled clinical study to measure posterior capsular opacification, objective measurement of glistenings and intraocular lens tilt and decentration as well as visual outcomes following insertion of a monofocal, aspheric, hydrophobic acrylic intraocular lens: the RayOne® Hydrophobic lens 800C and a monofocal aspheric, hydrophilic acrylic intraocular lens: the RayOne® Hydrophilic lens 600C
Interventions
Patients will receive a monofocal, aspheric, hydrophobic acrylic intraocular lens: the RayOne® Hydrophobic lens 800C
Patients will receive a monofocal aspheric, hydrophilic acrylic intraocular lens: the RayOne® Hydrophilic lens 600C.
Sponsors
Study design
Masking description
Patients randomised into one of two groups
Eligibility
Inclusion criteria
1. Unilateral or bilateral cataracts requiring surgical intervention 2. Age over 18 years 3. Able to understand informed consent and the objectives of the trial 4. Not pregnant, not breast feeding 5. No previous eye surgery 6. Corneal astigmatism less than 1 diopter in both eyes.
Exclusion criteria
1. age-related macula degeneration 2. glaucoma 3. previous retinal vascular disorders 4. previous retinal detachment or tear 5. any neuro-ophthalmological condition 6. any inherited retinal disorder or pathology 7. previous strabismus surgery or record of amblyopia 8. previous TIA, CVA or other vaso-occlusive disease 9. already enrolled in another study
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Posterior Capsular Opacification of Intraocular Lens | 24 months | Degree of the Posterior Capsular Opacification of Intraocular Lens will be assessed using digital imaging techniques |
| Intraocular lens glistenings | 24 months | Degree of the intraocular lens glistenings will be quantified using digital analysis |
| Intraocular lens tilt and decentration | 24 months | — |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Visual Acuities | 24 months | Unaided and Best corrected Logmar Visual acuity for distance, and for near vision will be assessed |
| Intraoperative and post operative complications | 0 days-24 months | — |
| Forward light scatter and Contrast Sensitivity Measurement | 24 months | Forward light scatter and Contrast Sensitivity Measurement will be quantified using computerised visual testing |
| Patient Satisfaction | 24 months | Validated questionnaires will be used to assess patient satisfaction |