Clinical trials: Metamorphopsia
Macular Degeneration, Wet, Metamorphopsia
M Charts Versus Amsler Test in Evaluating Metamorphopsia in nAMD
Age-related macular degeneration (AMD) is a complex eye disorder and the most common macular disease affecting millions of aged people in the developed countries, with an estimation that the number of AMD patients will be…
- Trial name
- MVAinAMD2022 (NCT05324150)
- Where
- Italy
- Volunteers
- 57 people
- Sponsor
- Ospedale Santa Croce-Carle Cuneo
Macular Holes
Extent of ILM Removal and Its Impact on Outcomes of MH Surgery
Eligible patients who were scheduled for surgery for idiopathic macular hole (MH) were equally randomized to small extent group or large extent group depending on the extent of internal limiting membrane (ILM) to be removed.
- Trial name
- NCT02010138
- Testing
- small-extent peeling, large-extent peeling
- Where
- South Korea
- Volunteers
- 65 people
- Sponsor
- Samsung Medical Center
Epiretinal Membrane, Cataract Senile
Mid-term Evaluation of Metamorphopsia in Epiretinal Membrane Surgery
This study evaluates the safety and efficacy simultaneous, trans-conjunctival, 25-Gauge vitrectomy and phacoemulsification with intraocular lens implant in patients with metamorphopsia and visual impairment due to idiopathic…
- Trial name
- NCT03045367
- Testing
- Phacoemulsification, intraocular lens implant, vitrectomy.
- Volunteers
- 30 people
- Sponsor
- Clinica Oculistica dell'Università di Torino
Vision Disorders
Usability of the Software MacuFix for the Categorization of Metamorphopsia
The usability of a novel test to categorize a distorted visual impression (metamorphopsia) is examined with the questionnaire "SUS"
- Trial name
- MacuFix (NCT04347564)
- Where
- Germany
- Volunteers
- 45 people
- Sponsor
- Augenheilkunde Lindenthal
Retinal Detachment
Correlation of Metamorphopsia and Aniseikonia to Retinal Shift Following Retinal Detachment Surgery
Individuals operated for rhegmatogenous retinal detachment will be prospectively evaluated for postoperative retinal shift. Fundus autofluorescence will be used to evaluate retinal shift that will be correlated to visual acuity…
- Trial name
- NCT03187613
- Where
- Norway
- Volunteers
- 38 people
- Sponsor
- Helse Stavanger HF
Retinal Detachment, Metamorphopsia
Retinal Displacement After Pneumatic Versus Vitrectomy for Retinal Detachment (ALIGN)
This is a prospective cohort study, comparing the functional outcomes and the retinal displacement rates between two techniques for primary rhegmatogenous retinal detachment repair: Pars Plana Vitrectomy (PPV) and Pneumatic…
- Conditions
- Retinal Detachment, Metamorphopsia, Aniseikonia
- Trial name
- ALIGN (NCT04089033)
- Testing
- Pneumatic Retinopexy, Pars Plana Vitrectomy
- Where
- Canada
- Volunteers
- 204 people
- Sponsor
- Unity Health Toronto
Diabetic Macular Edema
Post Marketing Study to Evaluate the Safety and Effectiveness of Brolucizumab in Patients With Diabetic Macular Edema.
The purpose of this study is to generate additional safety and effectiveness data in Indian Diabetic macular edema (DME) patients that more closely resemble the real-world population intended to be treated with Brolucizumab.
- Trial name
- NCT05959304
- Testing
- brolucizumab
- Where
- 8 sites in India
- Volunteers
- 66 people
- Sponsor
- Novartis Pharmaceuticals
Epiretinal Membrane
Quantification of Metamorphopsia in Patients With Epiretinal Membranes
Aim of this study is to examine metamorphopsia before and 3 months after vitrectomy with membrane peeling among patients with idiopathic epiretinal membranes.
- Trial name
- NCT05138315
- Testing
- Metamorphopsia quantification
- Where
- Austria
- Volunteers
- 30 people
- Sponsor
- Vienna Institute for Research in Ocular Surgery
Epiretinal Membrane
Retinal Layers and Visual Rehabilitation After Epiretinal Membrane Removal
The purpose of this study is to evaluate the changes in visual acuity, metamorphopsia, and thickness of retinal layers after epiretinal membrane removal and to investigate factors associated with visual function.
- Trial name
- NCT01474655
- Testing
- Pars plana vitrectomy and removal of epiretinal membrane
- Volunteers
- 52 people, healthy volunteers welcome
- Sponsor
- Samsung Medical Center
Retinal Detachment, Vitrectomy
Functional and Morphological Results of Rhegmatogenous Retinal Detachment Treated With Vitrectomy
To examine morphological and functional results after pars plana vitrectomy (PPV) with SF6 gas tamponade due to macula-on and macula-off rhegmatogenous retinal detachment (RRD) during six months of the follow-up.
- Trial name
- NCT03902795
- Testing
- Microperimetry, M-charts
- Where
- Poland
- Volunteers
- 62 people
- Sponsor
- Medical University of Lublin
Ophthalmologic Complication, Epiretinal Membrane
Measuring Subjective Quality of Vision and Metamorphopsia Before and After Epiretinal Membrane and Macular Hole Surgery
Assessing metamorphopsia and quality of vision pre and post epiretinal and macular hole surgery
- Conditions
- Ophthalmologic Complication, Epiretinal Membrane, Metamorphopsia, Macular Holes
- Trial name
- MQUEST (NCT05171621)
- Where
- United Kingdom
- Volunteers
- 50 people
- Sponsor
- Hayley Westwood
Retinal Detachment, Metamorphopsia
Effect of Type of Head Positioning on Retinal Displacement in Vitrectomy for Retinal Detachment
Patients may experience metamorphopsia, or image distortion, after having vitrectomy to repair their rhegmatogenous retinal detachments especially those with a detached macula.
- Trial name
- DIAMOND (NCT04035343)
- Testing
- Face down positioning, Supine positioning
- Where
- Canada
- Volunteers
- 324 people
- Sponsor
- Unity Health Toronto
Age - Related Macular Degeneration, Diabetic Retinopathy
A Comparison of the Checkup Vision Assessment System to Standard Vision Assessment Tools
The CLEAR study is testing the level of agreement between visual acuity and Amsler grid testing using a mobile vision testing application, Checkup Study, and standard in office methods.
- Conditions
- Age - Related Macular Degeneration, Diabetic Retinopathy, Metamorphopsia
- Trial name
- CLEAR (NCT02871817)
- Testing
- Paxos Checkup Study Mobile Medical Application
- Where
- 12 sites in United States
- Volunteers
- 143 people
- Sponsor
- Digisight Technologies, Inc.
Retinal Detachment, Metamorphopsia
Retinal Displacement Rates in Pneumatic Retinopexy Versus Pars Plana Vitrectomy For Primary Retinal Detachment
Patients may experience metamorphopsia, or image distortion, after having vitrectomy to repair their rhegmatogenous retinal detachments (RRDs) especially those with a detached macula.
- Trial name
- REVEAL (NCT04158622)
- Testing
- PnR + laser/cryotherapy, PPV + laser/cryotherapy
- Where
- Canada
- Volunteers
- 100 people
- Sponsor
- Unity Health Toronto
Metamorphopsia
Comparison of Quantitative Metamorphopsia- Measurements in Patients With mCNV
The myopic CNV (mCNV) is a blood vessel neoplasm starting from the choroid, based on pathological myopia (severe myopia). Choroidal neovascularization secondary to pathological myopia is the most common cause of severe visual…
- Trial name
- NCT04112524
- Testing
- App
- Where
- Switzerland
- Volunteers
- 23 people
- Sponsor
- PD Dr. med. Katja Hatz
Macular Holes
Elongation of Foveal Tissue After Macular Hole Surgery
In our experience, elongation of foveal tissue after macular hole surgery which was undetectable by conventional time-domain optical coherence tomography was often observed on spectral-domain optical coherence tomography images.
- Trial name
- NCT01471912
- Testing
- pars plana vitrectomy and fluid gas exchange
- Where
- South Korea
- Volunteers
- 31 people
- Sponsor
- Samsung Medical Center
Metamorphopsia, Aniseikonia
Virtual Reality Aniseikonia and Metamorphopsia Testing
The purpose of this study is to assess whether the use of small, lightweight, portable virtual reality headset devices can provide a more accessible, reliable, contained, and convenient testing environment compared to previous…
- Trial name
- NCT07838181
- Testing
- Aegenta VR
- Where
- United States
- Volunteers
- 100 people
- Sponsor
- NYU Langone Health
Macular Holes, Microperymetry
The Application of M-charts and Microperimetry for the Assessment of Visual Function in Patients After Vitrectomy Due to the Full Thickness Macular Hole.
To examine the relationship between morphological and functional results in eyes after vitrectomy due to the full thickness macular hole (FTMH).
- Conditions
- Macular Holes, Microperymetry, Vitrectomy, M-charts
- Trial name
- NCT03701542
- Testing
- Microperymetry, M-charts
- Volunteers
- 22 people
- Sponsor
- Medical University of Lublin