Clinical trials: Lasik Eye Surgery
Myopia
Topography-guided LASIK Surgery
The investigators are analyzing outcomes of topography-guided LASIK surgery in participants with myopia and myopic astigmatism
- Trial name
- NCT03292419
- Testing
- Topography-guided LASIK
- Where
- United States
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- Stanford University
Myopia
Wavefront-guided vs. Topography-guided LASIK
The study is comparing outcomes of wavefront-guided LASIK to topography-guided LASIK in a randomized contralateral fellow eye study in myopic participants.
- Trial name
- NCT05588882
- Testing
- Wavefront-guided LASIK, Wavefront-guided
- Where
- United States
- Volunteers
- 50 people, healthy volunteers welcome
- Sponsor
- Stanford University
Meibomian Gland Dysfunction, Blepharitis
Analysis of the Results of Intense Pulsed Light Treatment Previously to Laser Refractive Surgery
Dry eye is often reported as the most common complication after a laser refractive surgery. Any refractive procedure can lead an impact on the corneal surface and the tear film.
- Trial name
- NCT05139511
- Testing
- Study group, Control group
- Where
- Spain
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- Vissum, Instituto Oftalmológico de Alicante
Dry Eye, Meibomian Gland Dysfunction (Disorder)
Effect of Low-Level Light Therapy on Ocular Surface Parameters in Patients Undergoing Femto-Lasik Surgery
This study evaluates the role of perioperative low-level light therapy (LLLT) in reducing dry eye disease (DED) symptoms after femtosecond laser-assisted in situ keratomileusis (Femto-LASIK).
- Conditions
- Dry Eye, Meibomian Gland Dysfunction (Disorder), Ocular Surface Disease
- Trial name
- LLLT-Lasik (NCT07181668)
- Testing
- Low-Level Light Therapy
- Where
- Romania
- Volunteers
- 61 people, healthy volunteers welcome
- Sponsor
- Grigore T. Popa University of Medicine and Pharmacy
Myopia
Study of the MEL 80 Excimer Laser Using LASIK in the Treatment of Moderate to High Myopia
The purpose of this study is to determine whether the MEL 80 Excimer Laser is effective in the treatment of moderate to high myopia (nearsightedness), when used as part of the Laser In Situ Keratomileusis (LASIK) procedure.
- Trial name
- NCT00762541
- Testing
- MEL 80 Treatment of High Myopia
- Where
- 5 sites in United States
- Volunteers
- 129 people, healthy volunteers welcome
- Sponsor
- Carl Zeiss Meditec, Inc.
Dry Eye Syndromes
TearLab Refractive Surgery Dry Eye Study
The primary objective of this study is to determine how pre \& post-operative tear osmolarity levels relate to rates of dry eye symptoms related to refractive surgery and if differences exist in patients who are pre-treated with…
- Trial name
- NCT01176045
- Where
- 8 sites in United States
- Volunteers
- 128 people, healthy volunteers welcome
- Sponsor
- TearLab Corporation
Myopia, Hypermetropia
Anesthetic Impregnated Bandage Soft Contact Lens (BSCL) in Pain Management After Photorefractive Keratectomy (PRK)
Compared to laser-assisted in situ keratomileusis (LASIK), Photorefractive Keratectomy (PRK) is associated with more discomfort and requires more downtime.
- Conditions
- Myopia, Hypermetropia, Refractive Errors, Astigmatism
- Trial name
- NCT04283331
- Testing
- Proparacaine Ophthalmic
- Where
- United States
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- Beeran Meghpara, MD
Myopia, Keratoconus
Assessment of Corneal Biomechanical Properties Using Corvis ST and ECD Following LASIK, PRK, CXL, Veriflex IOL and Implantable Collamer Lens
To evaluate corneal biomechanical changes using the Corvis ST and ECD in patients who have under-gone LASIK, PRK, corneal cross-linking (CXL), Veriflex IOL and ICL.
- Conditions
- Myopia, Keratoconus, Refractive Surgery
- Trial name
- NCT06818461
- Testing
- Corvis St Before and after lasik, PRK, CXL, Veriflex IOL and ICL
- Where
- Egypt
- Volunteers
- 150 people, healthy volunteers welcome
- Sponsor
- Beni-Suef University
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
Fuchs Endothelial Corneal Dysfunction, Open Angle Glaucoma (OAG)
A Study to Assess Brillouin Hydration Mapping for the Evaluation of Ocular Tissues and Diseases
The overall goal of this study is to develop Brillouin microscope as a novel tool for measuring biomechanical and hydration properties of human tissues in vivo.
- Conditions
- Fuchs Endothelial Corneal Dysfunction, Open Angle Glaucoma (OAG), Dry Eye Disease (DED), Keratoconus
- Trial name
- NCT07780890
- Where
- United States
- Volunteers
- 90 people, healthy volunteers welcome
- Sponsor
- Massachusetts General Hospital
Dry Eye
SAS 1: Develop Ocular Disease (OSD) Diagnostic, Algorithms, and Management Protocols for Cataract Surgery
Patient: Tear film issues resulting in poor visual outcomes are a major cause of dissatisfaction after cataract surgery. There is no universal best preoperative algorithm for managing the ocular surface prior to surgery.
- Trial name
- NCT07323264
- Where
- Singapore
- Volunteers
- 110 people, healthy volunteers welcome
- Sponsor
- Louis Tong
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, 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
Refractive Surgery
Comparison Between the SBK Microkeratome Versus Femtosecond Laser in Flap Creation During LASIK Surgery for Myopia
LASIK is the most commonly performed refractive surgery worldwide. It has been shown to be safe and effective procedure with predictable results over long term follow ups.
- Trial name
- NCT05406973
- Testing
- SBK microkeratome versus femtosecond laser in flap creation
- Where
- Egypt
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- Kasr El Aini Hospital
Myopia
A Prospective, Contralateral, Eye to Eye Comparison of SMILE Surgery to LASIK Surgery
Subjects will undergo SMILE surgery in one eye and LASIK surgery in their other eye to correct myopia.
- Trial name
- NCT03067077
- Testing
- SMILE, LASIK
- Where
- United States
- Volunteers
- 44 people, healthy volunteers welcome
- Sponsor
- Stanford University
Myopia, Astigmatism
A Study to Investigate the Safety and Effectiveness of Aspheric Laser Refractive Surgery Treatments for Myopia
The objective of this study was to compare the safety and effectiveness of two versions of the Bausch \& Lomb Zyoptix Tissue Saving Aspheric Algorithm versus the current Zyoptix Tissue Saving Algorithm when used for myopia and…
- Trial name
- NCT00365677
- Testing
- The Bausch & Lomb Zyoptix Tissue Saving Aspheric algorithm, The Bausch & Lomb Zyoptix Tissue Saving algorithm
- Volunteers
- 127 people, healthy volunteers welcome
- Sponsor
- Bausch & Lomb Incorporated
Refractive Errors, Refractive Surgery
Femto-flap Versus SBK Flap,Predictability and Variability
Laser Insitu keratomileusis (LASIK) has become the most popular procedure for refractive error correction. Lasik flap creation is the first and critical step during LASIK surgery because of its consensual effect on a residual…
- Trial name
- NCT04684888
- Testing
- Visumax Femto-flap, Sub Bowman's keratomileusis (SBK)-flap
- Where
- Iraq
- Volunteers
- 50 people, healthy volunteers welcome
- Sponsor
- Suzan A Rattan
Myopia, Astigmatism
A Three-Phase Contralateral Comparison of Ray-Tracing Guided LASIK Versus Three Other Refractive Surgery Platforms to Correct Myopia or Myopia With Astigmatism
This purpose of this study is to compare a new form of LASIK called Ray Tracing Guided LASIK to 3 other forms of corneal refractive surgery: 1. KLEx (KeratoLenticule Extraction) using the Zeiss Visumax 800 Laser, 2.
- Trial name
- NCT07201298
- Testing
- Ray-Tracing Guided LASIK, Keratorefractive Lenticule Extraction (KLEx), WaveFront Optimized LASIK
- Where
- United States
- Volunteers
- 120 people, healthy volunteers welcome
- Sponsor
- Hoopes Vision
Bilateral LASIK Surgery
A Study to Compare the Safety and Efficacy of a New Eye Drop Formulation With REFRESH PLUS® in Participants Following LASIK Refractive Surgery
This study will compare the safety and efficacy of a new eye drop formulation with REFRESH PLUS® in participants following LASIK surgery.
- Trial name
- NCT01886690
- Testing
- carboxymethylcellulose sodium based new eye drop formulation, carboxymethylcellulose sodium based eye drops
- Where
- 2 sites in Australia, Canada
- Volunteers
- 148 people, healthy volunteers welcome
- Sponsor
- Allergan
Cornea, Refractive Surgery
Evaluation of the Effect of Myopic Femtosecond Laser Assisted-LASIK on Anterior Chamber Flare Values and Corneal Endothelial Cells: A Prospective Before-and-After Study
This study aimed to investigate whether femtosecond laser-assisted LASIK (FS-LASIK) surgery causes inflammation in the anterior chamber and to analyze its effect on endothelial cells.
- Conditions
- Cornea, Refractive Surgery, Anterior Chamber Inflammation
- Trial name
- NCT04899258
- Testing
- Femtosecond laser assisted LASIK
- Where
- Turkey (Türkiye)
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- Istanbul University