Clinical trials: Refractive Surgery
Dry Eye Disease (DED)
Evaluating Crosslinked Hyaluronate Canalicular Gel for the Treatment of DED in Patients Undergoing Cataract Surgery
To review how patients report using a hyaluronate crosslinked canalicular gel placed before cataract surgery
- Trial name
- LaReCa (NCT07155057)
- Testing
- Cross-Linked Hyaluronate Gel Prefilled Syringe 30 MG/3ML
- Where
- United States
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- Vance Thompson Vision
Myopia
A Prospective Evaluation of Contrast Sensitivity and Disability Glare in Refractive Surgery, a Sub-Study of: Initial Evaluation of Excimer Laser Keratorefractive Surgery in U.S. Army Personnel (WU # 2335-99)
The purpose of this study is to conduct a prospective assessment of small target contrast sensitivity and disability glare in refractive surgery.
- Trial name
- NCT00413868
- Testing
- LASIK, PRK, Small target contrast sensitivity and disability glare
- Where
- United States
- Volunteers
- 50 people, healthy volunteers welcome
- Sponsor
- Walter Reed Army Medical Center
Ophthalmology, Photorefractive Keratectomy ("PRK")
Ocular Bandage Gel (OBG) Pivotal Trial in Patients Undergoing Photorefractive Keratectomy ("PRK")
Prospective, randomized, masked (reading center), controlled pivotal study of Ocular Bandage Gel (OBG) vs. a bandage contact lens (BCL) in subjects who have undergone bilateral photorefractive keratectomy (PRK).
- Conditions
- Ophthalmology, Photorefractive Keratectomy ("PRK"), Laser Assisted Surgery, Refractive Surgery
- Trial name
- NCT03938883
- Testing
- Ocular Bandage Gel (OBG), Bandage Contact Lens (BCL)
- Where
- United States
- Volunteers
- 250 people, healthy volunteers welcome
- Sponsor
- Eyegate Pharmaceuticals, Inc.
Psychological Stress, Anesthesia
RELIEF OF PSYCHOEMOTIONAL STRESS USING XENON SEDATION
The goal of this clinical trial is to propose for implementation and evaluate the effectiveness of xenon sedation for the relief of psychoemotional stress disorder before the operation of refractive laser vision correction…
- Conditions
- Psychological Stress, Anesthesia, Anxiety, Xenon
- Trial name
- NCT06080100
- Testing
- Xenon, premedication hydroxyzine 25 mg
- Where
- Russia
- Volunteers
- 140 people, healthy volunteers welcome
- Sponsor
- The S.N. Fyodorov Eye Microsurgery State Institution
MCS vs ReLACS, Pain Perception Postoperatively First Eye vs Second Eye
A Comparison of Patient Perceptions Undergoing Manual Cataract Surgery (MCS) vs Refractive Laser-assisted Cataract Surgery (ReLACS) in First and Second Eyes
The focus of this study is to assess how pain can be mitigated for patients undergoing cataract surgery through the early application of anesthesia prior to the surgery as compared to the standard timing, and by using the ReLACS…
- Conditions
- MCS vs ReLACS, Pain Perception Postoperatively First Eye vs Second Eye, Early Anesthesia vs Standard Anesthesia
- Trial name
- NCT04623229
- Testing
- MCS, ReLACS Early, ReLACS Standard
- Where
- Canada
- Volunteers
- 103 people, healthy volunteers welcome
- Sponsor
- Uptown Eye Specialists
Nearsightedness, Farsightedness
An Evaluation of LASIK, SMILE and PRK Surgery in Physicians
The principle investigator is evaluating self-reported quality of vision and quality of life in physicians undergoing LASIK, SMILE and PRK surgery.
- Conditions
- Nearsightedness, Farsightedness, Astigmatism
- Trial name
- NCT02576483
- Testing
- Questionnaire (QoV questionnaire)
- Where
- United States
- Volunteers
- 700 people, healthy volunteers welcome
- Sponsor
- Stanford University
Refractive Surgery, Refractive Error - Myopia
Evaluate the Safety and Effectiveness of the AccuraSee™ IOPCL for Secondary Implantation in the Capsular Bag to Improve Near and/or Intermediate Vision Following Previous Cataract Surgery
This is a study to evaluate the safety and effectiveness of the AccuraSee™ intraocular pseudophakic capsular lens (IOPCL) to improve near and/or intermediate vision following previous cataract surgery.
- Trial name
- NCT06625749
- Testing
- Accurasee™ IOPCL
- Where
- United States
- Volunteers
- 10 people, healthy volunteers welcome
- Sponsor
- OnPoint Vision Inc
Refractive Surgery
Risk Factors for Progressive Suction Loss in Corneal Refractive Surgery
The goal of this Prospective observational studiesis to Characteristics of progressive suction loss.
- Trial name
- NCT06264804
- Where
- China
- Volunteers
- 800 people, healthy volunteers welcome
- Sponsor
- Yifeng Yu
Myopia, Astigmatism
Wavefront-guided LASIK Surgery Compared to Ray Tracing-Guided LASIK Surgery
We are enrolling participants aged 22 and older to have LASIK surgery in both eyes. We will perform wavefront-guided LASIK in one eye and ray tracing-guided LASIK in the fellow eye of each participant.
- Trial name
- NCT07078799
- Testing
- LASIK
- Where
- United States
- Volunteers
- 70 people, healthy volunteers welcome
- Sponsor
- Stanford University
Myopia, Myopia; Astigmatism
Assessment of IOP After Corneal Refractive Surgery Based on AI
Significance, Background, and Current Status Studies show the global average prevalence of myopia is 22%, with hyperopia incidence being similar.
- Conditions
- Myopia, Myopia; Astigmatism, Refractive Surgery, Intraocular Pressure Changes
- Trial name
- AIOP-CRS-AI (NCT07544615)
- Where
- China
- Volunteers
- 10,030 people, healthy volunteers welcome
- Sponsor
- Tianjin Eye Hospital
Myopia, Small-incision Lenticule Extraction (SMILE) Surgery
Factor Analysis of Unintended Initial Dissection of the Posterior Plane
To explore the potential factors for unintended initial dissection of the posterior plane in a large sample retrospective analysis and surgeons of different levels.
- Trial name
- NCT05367154
- Testing
- Small incision lenticule extraction
- Where
- China
- Volunteers
- 3,003 people, healthy volunteers welcome
- Sponsor
- Yifeng Yu
Cataract
Rotational Stability of Acrysof IQ Vivity Extended Vision Toric IOL and Refractive Visual Outcome.
The purpose of this research is to assess the rotational stability of the AcrySof IQ Vivity Extended Vision Toric IOL and Refractive Visual outcome.
- Trial name
- NCT05119127
- Testing
- Alcon Vivity toric intra ocular lens
- Where
- United States
- Volunteers
- 35 people, healthy volunteers welcome
- Sponsor
- Kevin Barber
Cataract, Lens Opacities
Implantation of a Trifocal Hydrophobic IOL in Patients That Underwent Refractive Surgery
Controlled, open label, prospective Post Market Clinical Follow-Up, single-center clinical study to investigate visual performance after implantation of a trifocal IOL (PhysIOL Pod L GF) in patients that underwent refractive…
- Conditions
- Cataract, Lens Opacities, Presbyopia
- Trial name
- NCT04054427
- Testing
- IOL implantation experimental
- Volunteers
- healthy volunteers welcome
- Sponsor
- Beaver-Visitec International, Inc.
Myopia
Does Pupil Size Matters in Refractive Surgery?
To determine the influence of pupil size in refractive surgery. If any influence exist.
- Trial name
- NCT01678729
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- Ziv Hospital
Myopia, Astigmatism
KLEx Versus FS-LASIK for the Treatment of Myopia and Compound Myopic Astigmatism
FemtoLASIK is a type of laser eye surgery used to correct vision problems such as nearsightedness, farsightedness, and astigmatism. It involves two main steps: creating a flap and reshaping the cornea.
- Conditions
- Myopia, Astigmatism, Myopic Astigmatism
- Trial name
- NCT06477081
- Testing
- FS-LASIK procedure, KLEx
- Where
- Mexico
- Volunteers
- 80 people, healthy volunteers welcome
- Sponsor
- Instituto de Oftalmología Fundación Conde de Valenciana
Myopia, Astigmatism
A Prospective Study of Femtosecond Laser Intracorneal Lensectomi
The purpose of this study is to compare visual acuity, safety, predictability, corneal biomechanics, dry eyes, and nerve-morphology after all femtosecond laser refractive lenticule extraction.
- Trial name
- NCT01673503
- Testing
- Carl Zeiss Meditech VisuMax laser
- Where
- Denmark
- Volunteers
- 35 people, healthy volunteers welcome
- Sponsor
- Odense University Hospital
MCS vs ReLACS, Pain Perception Postoperative
Manual Immediately Sequential Bilateral Cataract Surgery (M-ISBCS) vs Refractive Laser-Assisted Immediately Sequential Bilateral Cataract Surgery (ReLA-ISBCS)
The focus of this study is to assess the differences in patient perceptions of pain undergoing cataract surgery by using the Refractive Laser-Assisted Cataract Surgery (ReLACS) technique compared to the standard Manual Cataract…
- Conditions
- MCS vs ReLACS, Pain Perception Postoperative, Early Anesthesia vs Standard Anesthesia, Immediately Sequential Bilateral Cataract Surgery
- Trial name
- NCT05480839
- Testing
- M-IBCS, ReLA-IBCS Early, ReLA-ISBCS
- Where
- Canada
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- Uptown Eye Specialists
Recruitment of Participants
Study of the Correlation Between Preoperative Precise Biometrics, Spatial Assessment and Postoperative Visual Quality in Cataract Patients
This study summarizes the experience of precision treatment and postoperative management of various types of cataract, and intend to further improve the quality of Clinical Cataract diagnosis and treatment.
- Trial name
- NCT04833491
- Where
- China
- Volunteers
- 1,000 people, healthy volunteers welcome
- Sponsor
- Second Affiliated Hospital, Zhejiang University, School of Medicine
Refractive Errors, Aberration, Corneal Wavefront
Chromatic and Monochromatic Optical Aberrations After Corneal Refractive Surgery
Refractive surgeries can be divided into two distinct categories: 1) corneal surgeries (superficial and deep procedures) carried on the surface of the eye and 2) lens surgeries (phakic IOL, refractive lens exchange) - an…
- Trial name
- NCT03893838
- Where
- Poland
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- Wrocław University of Science and Technology
Cataract, Refractive Errors
Panoptix Trifocal Lens in Post Refractive Myopic Laser Vision Correction Surgery
The two main objectives of this study are to demonstrate safety and effectiveness of implanting the PanOptix Trifocal IOL in patients who have had previous myopic Lasik.
- Trial name
- NCT04698278
- Testing
- PanOptix Trifocal Intraocular Lens
- Where
- United States
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- Parkhurst NuVision Clinical Research LLC