Visual Outcomes After Presbyopic Lens Exchange

Not Applicable

Completed

• Conditions: Presbyopia
• Interventions: Device: trifocal IOL

• Registration Number: NCT03790592
• Lead Sponsor: Carl Zeiss Meditec AG

Brief Summary

Evaluation of mean preoperative and postoperative Corrected distance visual acuity (CDVA) after Refractive Lens Exchange in presbyopic patients

Detailed Description

Compare preoperative and postoperative Corrected distance visual acuity

Study Timeline

• Study First Submitted: 2018-12-28
• Study First Submitted QC: 2018-12-28
• Study First Posted: 2018-12-31
• Study Start: 2019-05-14
• Primary Completion: 2019-12-09
• Study Completion: 2019-12-09
• Status Verified: 2020-07
• Last Update Submitted: 2020-07-15
• Last Update Posted: 2020-07-16

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 36

Inclusion Criteria

1. Patient informed of the consequences and constraints of the protocol and who has given his/her written informed consent
2. Patients of any gender, aged 18 years or older
3. Assured follow-up examinations
4. Post-operative astigmatism ≤ 0.75 Diopter
5. IOL implanted into the capsular bag with trifocal IOL in both eyes
6. Patients who had bilateral uncomplicated presbyopic lens exchange surgery in both healthy eyes
7. Preoperative monocular and binocular CDVA equal or better than 0.2 logMAR
8. Normal findings in the medical history and physical examination

Exclusion Criteria

1. Patients unable to meet the limitations of the protocol or likely of non-cooperation during the trial
2. Patients whose freedom is impaired by administrative or legal order
3. Concurrent participation in another drug or device investigation that affects patients vision
4. Signs of early cataract in either eye
5. Preoperative monocular and binocular CDVA worse than 0.2 logMAR
6. Clinically significant Posterior capsule opacification (PCO) defined as a CDVA loss of 0.2 logMAR or more in either eye
7. Cataract of any grade
8. Ocular disorders, that could potentially cause future acuity loss to a level of 0.20 logMAR (best-corrected) or worse in either eye
9. Any anterior segment pathology that could significantly affect outcomes (e.g. chronic uveitis, iritis, aniridia, rubeosis iridis, clinically significant anterior membrane dystrophies, poor pupil dilation, etc.)
10. Abnormal corneal findings in either eye (e.g. keratoconus, pellucid marginal degeneration, or irregular astigmatism, clinically significant corneal membrane dystrophies)
11. Any condition in the study eye that could affect IOL stability (e.g. zonular dialysis, evident zonular weakness or dehiscence, etc.)
12. History of any clinically significant retinal pathology or ocular diagnosis (e.g. diabetic retinopathy, ischemic diseases, macular degeneration, retinal detachment, optic neuropathy optic nerv atrophy, amblyopia, strabismus, microphthalmos, aniridia, epiretinal membrane etc.) in the study eyes that could alter or limit final postoperative visual prognosis.
13. Patients, who are unable to fixate for a longer time, e.g. strabismus, nystagmus
14. Patient expected to require retinal laser treatment before 6 month follow-up visit
15. Patient require refractive laser treatment / refractive laser touch-up before 6 month follow up visit
16. Current Systemic or ocular pharmacotherapy that effects patients vision
17. Floppy iris syndrome
18. Monophthalmic patient
19. Previous corneal surgery
20. Previous use of cytotoxic drugs or total body irradiation
21. Dementia
22. Uncontrolled glaucoma or Intraocular pressure (IOP) higher than 24 millimeter of mercury (mmHg) under ocular hypertension treatment
23. Any other pathology or condition presenting, according to the investigator opinion, a risk for the patient

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: SINGLE_GROUP

Arm && Interventions

Group	Intervention	Description
trifocal IOL	trifocal IOL	patients implanted with a trifocal intraocular lens

Primary Outcome Measures

Name	Time	Method
Corrected distance visual acuity	4 to 6 months postop	preoperative and postoperative Corrected distance visual acuity will be assessed

Trial Locations

Locations (1)

Augenzentrum Michelfeld; 🇩🇪 Michelfeld, Germany