Clinical trials: Fellow
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
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
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
Hyperopia, Myopia
A Comparison of Fellow Eyes Undergoing LASIK or PRK With a Wavefront-guided Excimer Laser Versus a Wavefront-optimized Excimer Laser
Subjects with myopia, hyperopia and astigmatism are being randomized to be treated in one eye with a wavefront-guided excimer laser and their fellow eye treated with a wavefront-optimized excimer laser.
- Conditions
- Hyperopia, Myopia, Astigmatism
- Trial name
- NCT01135719
- Testing
- LASIK and PRK
- Where
- United States
- Volunteers
- 137 people, healthy volunteers welcome
- Sponsor
- Edward E. Manche
Myopia, Astigmatism
A Comparison of LASIK Outcomes Using Two Femtosecond Lasers
Comparing LASIK outcomes using two femtosecond lasers
- Trial name
- NCT03063164
- Testing
- Intralase IFS150, Visumax
- Where
- United States
- Volunteers
- 7 people, healthy volunteers welcome
- Sponsor
- Edward E. Manche
Myopia, Astigmatism
An Outcomes Study Comparing the Intralase FS 60 to the Intralase iFS When Performing LASIK Surgery for Nearsightedness
The purpose of the study is to compare the results of LASIK surgery when using two versions of a femtosecond laser in patients with nearsightedness with and without astigmatism.
- Trial name
- NCT01365728
- Testing
- LASIK with the iFS femtosecond laser
- Where
- United States
- Volunteers
- 61 people, healthy volunteers welcome
- Sponsor
- Stanford University
Keratoconus
Epithelium-on Cross-linking Versus Observation of Fellow Eyes of Patients With Unilateral Clinically Evident Keratoconus
Keratoconus (KC) is a bilateral asymmetric progressive corneal degenerative disease. The management of young patients, diagnosed with clinically evident KC in one eye and with no clinical signs of KC in the other eye, represents…
- Trial name
- NCT06267495
- Testing
- Epithelium-on corneal cross-linking (epi-on CXL)
- Where
- Egypt
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- Assiut University
Educational Problems
Cardiovascular Fellow-in-training Feedback on Virtual and Simulator-based Learning Experience in A Low to Middle Income Country
Virtual and simulatorbased learning is not widely available in LMIC. It is imperative to analyze feedback of CV fellow-in-training regarding this mode of learning before large scale implementation.
- Trial name
- NCT04984564
- Testing
- None. As this was an observational study.
- Where
- Pakistan
- Volunteers
- 68 people, healthy volunteers welcome
- Sponsor
- Aga Khan University Hospital, Pakistan
Myopia, Astigmatism
Wavefront-guided PRK vs Wavefront-optimized PRK
The purpose of the study is to compare the results of PRKK surgery when using wavefront-guided excimer laser treatment compared to wavefront optimized excimer laser treatment in patients with nearsightedness with and without…
- Trial name
- NCT02091934
- Testing
- Wavefront-guided PRK, Wavefront-optimized PRK
- Where
- United States
- Volunteers
- 71 people, healthy volunteers welcome
- Sponsor
- Stanford University