34 studies found for:    Open Studies | "Astigmatism"
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Open Studies | "Astigmatism" (34 records)
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Rank Status Study
1 Recruiting Limbal Relaxing Incision Versus Toric Intraocular Lens for Corneal Astigmatism During Cataract Surgery.
Conditions: Astigmatism;   Cataract
Interventions: Procedure: Limbal Relaxing Incisions;   Device: Toric Intraocular Lens
2 Recruiting Clinical Evaluation of Efficacy and Stability of AT TORBI 709M 4-haptic Toric IOL in Cataract Surgery
Conditions: Iol;   Astigmatism
Intervention: Procedure: AT TORBI 709M
3 Recruiting Wavefront-guided PRK vs Wavefront-optimized PRK
Conditions: Myopia;   Astigmatism
Interventions: Procedure: Wavefront-guided PRK;   Procedure: Wavefront-optimized PRK
4 Unknown  A Trial of Toric Versus Non-toric Intraocular Lenses in Phacoemulsification Cataract Surgery
Conditions: Cataract;   Astigmatism
Intervention: Device: Phacoemulsfication cataract surgery and intra-ocular lens implant
5 Unknown  Effect of Posterior Corneal Toricity on Refractive Outcome of Pseudophakia
Conditions: Astigmatism;   Cataract
Interventions: Procedure: phacoemulsification;   Device: Pentacam (Oculus,Germany)examination
6 Recruiting Prospective Evaluation of the Long-term Effectiveness of the Femtosecond Laser-assisted Arcuate Incisions
Condition: Astigmatism
Intervention:
7 Recruiting Corneal Power, Astigmatism, and Aberration Changes After LASIK
Condition: Measurements of Patients Using OCT Before and After LASIK
Intervention:
8 Unknown  Impact of a Corneal Pre-cut on Wound Architecture and Astigmatism in Cataract Surgery - a Pilot Study
Condition: Cataract
Interventions: Procedure: Corneal precut 600µm;   Procedure: Corneal stabincision
9 Recruiting Pseudophakic Astigmatic Reduction With Verion-LenSx Arcuate Incisions
Condition: Astigmatism
Intervention: Procedure: Verion-LenSx
10 Not yet recruiting Performance of a Photoscreener for Vision Screening in a Haitian Pediatric Population
Conditions: Amblyopia;   Myopia;   Hyperopia;   Astigmatism;   Cataract;   Retinoblastoma;   Trachoma;   Xerophthalmia;   Glaucoma;   Retinopathy of Prematurity
Interventions: Device: Spot photoscreener;   Procedure: Ophthalmologic evaluation;   Procedure: Cyclopleged refraction
11 Recruiting Post-Approval Study of the TECNIS® Toric Extended Cylinder Range Intraocular Lens (IOL)
Conditions: Cataract;   Astigmatism
Intervention: Device: TECNIS Toric Models ZCT450, ZCT525 or ZCT600
12 Recruiting An Evaluation of LASIK and PRK Surgery in Physicians
Conditions: Nearsightedness;   Farsightedness;   Astigmatism
Intervention: Behavioral: Questionnaire (QoV questionnaire)
13 Recruiting High Resolution Wavefront-guided vs. Wavefront Optimized LASIK
Conditions: Nearsightedness;   Astigmatism
Intervention: Procedure: LASIK
14 Recruiting Conventional Surgery vs. Verion/VerifEye
Conditions: Cataract;   Astigmatism
Interventions: Device: Conventional;   Device: Verion
15 Recruiting Rotational Stability After Nanoflex Collamer Toric Intraocular Lens Implantation in Astigmatic Patients
Condition: Astigmatism
Interventions: Procedure: Phacoemulsification with toric Nanoflex IOL implantation;   Device: NanoFlex toric Intraocular Lens
16 Recruiting Development of a Validated Chart for Intermediate Vision Assessment
Conditions: Myopia;   Hyperopia;   Presbyopia;   Astigmatism
Intervention: Other: Intermediate Visual acuity (IVA) assessment
17 Recruiting Quality of Vision and Quality of Life With LASIK
Conditions: Myopia;   Astigmatism;   Quality of Lifte
Intervention: Other: Patient Quality of Life andVision after LASIK Surgery
18 Unknown  Diurnal Changes of the Cornea - a Pilot Study
Condition: Astigmatism
Intervention:
19 Unknown  Clinical Evaluation of Toric Intraocular Lens Made by Aurolab
Condition: Astigmatism
Intervention: Device: Experimental - Toric Intraocular lenses
20 Recruiting Randomized, Non-inferiority Trial Comparing SMILE and LASIK
Conditions: Myopia;   Astigmatism;   Hypermetropia
Interventions: Procedure: Femtosecond LASIK;   Procedure: Small incision lenticule extraction (SMILE)

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Indicates status has not been verified in more than two years