Cataract, Glaucoma, AMD
Conditions
Interventions
Group 1: Pseudophakic patients with standard monofocal intraocular lenses who have undergone cataract surgery within the past five years. During a single study visit, participants undergo a baseline o
Sponsors
Universitätsaugenklinik Heidelberg
Eligibility
Sex/Gender
All
Age
18 Years to No maximum
Inclusion criteria
Inclusion criteria: a) Pseudophakic patients - Pseudophakic patients implanted with standard monofocal intraocular lenses who underwent cataract surgery within the past 5 years - Patients following Nd:YAG capsulotomy - Best-corrected visual acuity (BCVA) = 0.8 Snellen (= 0.1 logMAR) - Astigmatism = 2.0 D - Ability to provide informed consent and comply with study procedures b) Phakic patients Without relevant additional ocular pathology: - Phakic adult patients (e.g., in the context of refractive lens exchange) - Phakic adult patients with cataract and no further relevant ocular comorbidities - Best-corrected visual acuity (BCVA) = 0.8 Snellen (˜ 0.1 logMAR) - Astigmatism = 2.0 D - Ability to provide informed consent and comply with study procedures With ocular comorbidities: - Phakic or pseudophakic patients with stable ocular disease - Best-corrected visual acuity (BCVA) = 0.4 Snellen (˜ 0.4 logMAR) - Astigmatism = 2.0 D - Ability to provide informed consent and comply with study procedures c) Healthy phakic participants - Healthy adult participants with no known ocular or systemic disease affecting visual function - Best-corrected visual acuity (BCVA) = 0.8 Snellen (˜ 0.1 logMAR) - Astigmatism = 2.0 D - Ability to provide informed consent and comply with study procedures
Exclusion criteria
Exclusion criteria: a) Pseudophakic patients - Systemic disease affecting visual function - Ocular disease other than the surgically treated cataract - Visually significant posterior capsule opacification (PCO) Prior ocular surgery other than cataract extraction b) Phakic patients Without relevant additional ocular pathology: - Known additional ocular or systemic disease affecting visual function c) Healthy phakic participants - Prior ocular surgery
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Best-corrected visual acuity (BCVA, logMAR) under the different lens types and lens combinations simulated with the RALV (Real Artificial Lens Vision), assessed on a single study visit day | — |
Secondary
| Measure | Time frame |
|---|---|
| Contrast sensitivity (assessed with CSV-1000 device) Visual acuity at near (40 cm), intermediate (67 cm), and distance (4 m) Subjective assessment of image quality Subjective perception of photic phenomena | — |
Countries
Germany
Contacts
Public ContactGrzegorz Labuz
Universitätsaugenklinik Heidelberg
Outcome results
None listed