Clinical trials: Fellow
Cataract
Visual and Refractive Outcomes After Implantation of Aspheric IOLs With Different Dioptric Increments and Manufacturing
This study compares two intraocular lenses, the Softec HD and the Tecnis Z9002, used to replace the natural crystalline lens after cataract extraction.
- Trial name
- NCT01249144
- Testing
- Intraocular Lens (IOL)
- Where
- United States
- Volunteers
- 75 people
- Sponsor
- Lenstec Incorporated
Cataracts
A Clinical Outcome Study of Two Multifocal Intraocular Lenses (IOL) in Cataract Patients
The purpose of this study is to compare AcrySof® IQ ReSTOR® +2.5 D Multifocal IOL in both eyes (bilateral implantation) to AcrySof® IQ ReSTOR® +2.5 D Multifocal IOL in the dominant eye with AcrySof® IQ ReSTOR® +3.0 D Multifocal…
- Trial name
- NCT01684007
- Testing
- AcrySof® IQ ReSTOR® +2.5 D Multifocal IOL Model SN6AD2 [SV25T0], AcrySof® IQ ReSTOR® +3.0 D Multifocal IOL Model SN6AD1
- Volunteers
- 112 people
- Sponsor
- Alcon Research
Myopia, Astigmatism
SMILE Surgery in One Eye Compared to Ray Tracing-guided LASIK Surgery in the Fellow Eye
Participants will undergo LASIK surgery in one eye using ray tracing guided technology in one eye and LASIK surgery in the other eye using wavefront guided technology.
- Trial name
- NCT07721714
- Testing
- Ray tracing guided LASIK surgery
- Where
- United States
- Volunteers
- 62 people
- Sponsor
- Stanford University
Myopia (Disorder), Anisometropia
Children Receiving Monocular MiSight® 1 Day Treatment for Unilateral Myopia
This investigator-initiated prospective observational cohort study aims to establish the first longitudinal clinical database evaluating fellow-eye myopia development in children receiving monocular MiSight® 1 Day treatment for…
- Trial name
- NCT07778264
- Testing
- MiSight® 1 Day
- Volunteers
- 100 people
- Sponsor
- Buddhist Tzu Chi General Hospital
Keratoconus
Objective and Subjective Diagnostic Parameters in the Fellow Eye of Unilateral Keratoconus
patients with keratoconus in one eye and forme fruste keratoconus in the fellow eye compared to normal subjects .the patients were examined by schemipflug imaging system (Pentacam)
- Trial name
- NCT03288116
- Testing
- Scheimplug imaging and contrast and sensitivity test
- Volunteers
- 48 people, healthy volunteers welcome
- Sponsor
- Dar Al Shifa Hospital
Myopia, Astigmatism
Wavefront-guided Photorefractive Keratectomy (PRK) Versus Wavefront-guided Lasik for Myopia
A prospective comparison of eyes undergoing wavefront-guided LASIK in one eye and wavefront-guided PRK in their fellow eye for myopia.
- Trial name
- NCT01140594
- Testing
- Photorefractive keratectomy, Laser in-situ keratomileusis
- Where
- United States
- Volunteers
- 34 people, healthy volunteers welcome
- Sponsor
- Stanford University
Neovascular Age-related Macular Degeneration, Wet Macular Degeneration
Long-term Follow-Up Study of RGX-314 and Fellow Eye Substudy
This is a prospective, observational study designed to evaluate the long-term safety and efficacy of RGX-314. Eligible participants are those who were previously enrolled in a clinical study in which they received a single…
- Trial name
- RGX-314 SRLTFU (NCT03999801)
- Testing
- RGX-314
- Where
- 9 sites in United States
- Volunteers
- 865 people
- Sponsor
- AbbVie
Keratoconus
Corneal Changes After Crosslinking in Keratoconus Patients Compared to the Untreated Fellow Eye
The purpose of this retrospective study is to assess corneal changes (keratometry, pachymetry) and change in visual acuity (VA) in keratoconus patients after unilateral crosslinking treatment compared to the untreated fellow eye.
- Trial name
- NCT02428166
- Where
- Germany
- Volunteers
- 66 people
- Sponsor
- Heidelberg University
Inherited Retinal Dystrophy
Fellow-eye Study (FE) of LX101 in Subjects With Inherited Retinal Dystrophy
Up to nine subjects who have participated in the earlier LX101 clinical study, and who meet all study eligibility criteria, will receive LX101 administration in the previously uninjected, contralateral eye to evaluate the safety…
- Trial name
- NCT06212297
- Testing
- LX101
- Where
- China
- Volunteers
- 9 people
- Sponsor
- Innostellar Biotherapeutics Co.,Ltd
Stage 3 Age Related Macular Degeneration (AREDS Classification)
Microperimetry and Eye Progressing From Stage 3 to Stage 4 Age-related Macular Degeneration (AMD)
Age-related macular degeneration (AMD) is an acquired retinal pathology affecting the central region of the retina responsible for discrimination between high spatial frequencies (reading), colour vision and the central visual…
- Trial name
- PREVISION (NCT02395757)
- Testing
- MAIA™ (Centervue, Padova, Italy; distributed in France by EDC Lamy, Carvin, France)
- Where
- France
- Volunteers
- 182 people
- Sponsor
- Hospices Civils de Lyon
Cataract, Pseudophakia
Correlation Between Sulcus Anatomy and Other Parameters After Horizontal & Vertical Intraocular Lens (IOLs) Placements
Usually following cataract surgery patients would expect to have normal distance vision and not require the use of distance glasses. However, in clinical practice desired vision post cataract surgery is not achieved sometimes.
- Trial name
- NCT04208633
- Testing
- Horizontal placement of the intraocular lens in the capsular bag, Vertical placement of the intraocular lens in the capsular bag
- Where
- United Kingdom
- Volunteers
- 46 people
- Sponsor
- Brighton and Sussex University Hospitals NHS Trust
Patients With Uterine Fibroids Receiving HIFUA Treatment ,and Can Undergo Regular Follow-up
The Clinical Application of Ultramicro-flow Technique in the Treatment of Benign Uterine Tumors With High-intensity Focused Ultrasound
High intensity focused ultrasound ablation (HIFUA) is a new non-invasive treatment method for uterine tumors. Traditionally, nuclear magnetic resonance imaging (NMRI), also known as magnetic resonance imaging (MRI), is used as…
- Trial name
- NCT06435663
- Testing
- Different methods of efficacy evaluation
- Where
- China
- Volunteers
- 30 people
- Sponsor
- The Fourth Affiliated Hospital of Zhejiang University School of Medicine
Cataract
Visual Acuity After the Combined Binocular Implantation of +2.5 Diopters and +3.0 Diopters ReSTOR Multifocal Intraocular Lenses.
The objective of this study is to assess the visual outcome after the combined binocular implantation of +2.5 D and +3.0 D apodized diffractive multifocal intraocular lenses.
- Trial name
- NCT02314572
- Testing
- Binocular cataract surgery with phacoemulsification and implantation of multifocal intraocular lenses
- Where
- Germany
- Volunteers
- 15 people
- Sponsor
- Charite University, Berlin, Germany
Choroidal Neovascularization (CNV), Age-related Macular Degeneration (AMD)
A Study Of Early Markers Of Choroidal Neovascularization
Identify early markers of choroidal neovascularization (CNV) in the fellow eye of a patient with CNV in the other eye due to age-related macular degeneration with the expectation of being able to identify patients in need of…
- Conditions
- Choroidal Neovascularization (CNV), Age-related Macular Degeneration (AMD), Early Markers
- Trial name
- NCT00902785
- Testing
- no drug
- Where
- 3 sites in Italy, Portugal and 1 more
- Volunteers
- 100 people
- Sponsor
- Pfizer
Myopia, Astigmatism
Contralateral Comparison of Three Excimer Laser Systems in Performing LASIK
The purpose of this study is to compare LASIK outcomes using the WaveLight ALLEGRETTO WAVE™ wavefront guided or optimized excimer laser treatment with the AMO/VISX CustomVue™ and the LADARVision 4000 excimer laser treatment.
- Trial name
- WLCVLV-001 (NCT00821236)
- Testing
- Excimer Laser, AMO/VISX CustomVue™, LADARVision 4000 excimer laser
- Where
- 2 sites in United States
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- Durrie Vision
Myopia, Astigmatism
Multi Laser Platform Comparison Study for LASIK
Comparison of LASIK outcomes using 3 different lasers and a total of 5 different treatment platforms.
- Trial name
- VBLWL-001 (NCT00770094)
- Testing
- Excimer Lasers, Excimer Laser for the LASIK procedure, Excimer Laser for LASIK
- Where
- 3 sites in United States
- Volunteers
- 90 people, healthy volunteers welcome
- Sponsor
- Durrie Vision
Age-Related Macular Degeneration
Fluocinolone Acetonide Intravitreal Inserts in Geographic Atrophy
This study will compare the safety and efficacy of Medidur FA treatment in one eye to the sham-treated fellow eye of subjects with geographic atrophy secondary to AMD.
- Trial name
- NCT00695318
- Testing
- Fluocinolone Acetonide
- Where
- United States
- Volunteers
- 17 people
- Sponsor
- Alimera Sciences
Cataract
Visual Acuity After the Combined Binocular Implantation of +2.0 Diopters and +3.0 Diopters Oculentis Multifocal Intraocular Lenses.
The objective of this study is to assess the visual outcome after the combined binocular implantation of +2.0 D and +3.0 D refractive multifocal intraocular lenses.
- Trial name
- NCT02633228
- Testing
- Binocular cataract surgery with phacoemulsification and implantation of multifocal intraocular lenses
- Where
- Germany
- Volunteers
- 15 people
- Sponsor
- PD Dr. med. Eckart Bertelmann
Cataract
Visual Acuity After the Combined Binocular Implantation of +2.75 Diopters and +3.25 Diopters Tecnis Multifocal Intraocular Lenses.
The objective of this study is to assess the visual outcome after the combined binocular implantation of +2.75 D and +3.25 D full-diffractive multifocal intraocular lenses.
- Trial name
- NCT02633072
- Testing
- Binocular cataract surgery with phacoemulsification and implantation of multifocal intraocular lenses
- Where
- Germany
- Volunteers
- 15 people
- Sponsor
- PD Dr. med. Eckart Bertelmann
Chronic Angle Closure Glaucoma, Primary Angle Closure
Sequential Laser Iridotomy Using Argon and Q-Switched 532 nm Frequency Doubled Neodymium Yag Laser: A Pilot Study
Sequential Laser Iridotomy uses argon and Nd:yag laser in the first and second steps, respectively. Using q-switched 532 nm laser in the second step is hypothesized to be as good and effective as the conventional Nd:yag laser…
- Conditions
- Chronic Angle Closure Glaucoma, Primary Angle Closure, Primary Angle Closure Suspect, Fellow Eyes of Acute Angle Closure Glaucoma
- Trial name
- NCT00452998
- Testing
- Q-switched fd Nd:yag in Laser Iridotomy
- Where
- Singapore
- Volunteers
- 10 people, healthy volunteers welcome
- Sponsor
- National University Hospital, Singapore