View clinical trials related to Keratoconus.
Filter by:This is a clinical study consisting of a study arm to assess the performance of the theranostic software module (Research Use Only) of a CE marked (CE1936) UV-A medical device, C4V CHROMO4VIS™, in order to validate its use for theranostic-guided corneal cross-linking treatment of keratoconus and corneal ectasia. The study hypothesis is that theranostic-guided riboflavin/UV-A corneal cross-linking with the C4V CHROMO4VIS™ system is safe and can estimate treatment efficacy during operation, regardless of treatment protocol, i.e., either with or without epithelial removal.
Cellular therapy of the corneal stroma with implantation of mesenchymal stem cells derived from autologous adipose tissue with or without a carrier (scaffold) composed by decellularized human donor corneal stroma is used in patients with corneal diseases such as corneal dystrophies, and keratoconus. For this purpose, the study planned to assess the enhancement of visual acuity, pachymetric, and aberrometric parameters with implantation of autologous mesenchymal adipose tissue-derived adult stem cells (ADASCs) alone, 120 µm thickness of decellularized or recellularized laminas with ADASCs. Three groups will be included in the study: (1) Implantation of a single dose of ADASCs alone without scaffold. (2) Implantation of decellularized human corneal lamina without ADASCs. (3) Implantation of the recellularized human corneal lamina with ADASCs.
We investigated the use of a copper sulfate eye drop (IVMED-80) for the treatment of keratoconus. Preliminary laboratory data shows that the addition of copper sulfate increase crosslinking of the structural proteins of the cornea thereby halting the progressing corneal thinning and bulging seen in keratoconus. We conducted a Phase 1/2a study to evaluate the safety and preliminary efficacy of a 6-week and a 16-week regimen using IVMED-80 and studied its impact on ocular safety and the change/progression in patients' vision and clinical measurements.
Keratoconus is a progressive corneal disease characterized by asymmetric corneal thinning and structural changes in corneal collagen which leads to decrease in visual acuity due to myopic shift, irregular astigmatism or corneal scarring. Early detection of the disease in children aids in halting the progression and improve their quality of life. There is no consensus regarding the progression criteria of the disease, we aimed to assess the changes in corneal asphericity in children after corneal collagen crosslinking and investigate any possible correlation with progression criteria widely used.
This prospective study the thyroid gland dysfunction and vitamin D receptor polymorphism in keratoconus patients
In the present study the investigators compare the clinical outcome corneal cross linking with either the stand-ard Dresden (sCXL) or the accelerated custom-fast (aCFXL) ultraviolet A irradiation protocol using riboflavin-D-α-Tocopheryl polyethyleneglycol1000 succinate for progressive keratoconus.
Our purpose is to analyze the changes induced in the posterior corneal surface in patients implanted with intracorneal ring segments for treatment of keratoconus. Patients are assessed with corneal imaging device preoperatively and at 1, 3, 6 and 12 months postoperatively.
EYEdeal Scanning Technology enables rapid measurement of corneal and scleral topography. By accurately measuring the ocular surface with this imaging technology, the current iterative fitting method required to fit PROSE (prosthetic replacement of the ocular surface ecosystem) devices could be replaced and/or strengthened with a more rapid, automated fitting sequence. This could considerably reduce the time needed per visit, the number of visits, and the number of devices needed to be manufactured to reach the endpoint. Additionally, the scanning technology may afford the opportunity to successfully fit some pathology that were previously treatment failures. The automated technology may as well reduce the intensive clinician training time needed to fit PROSE devices, therefore increasing the availability and access to patients. The goal of this research is to evaluate the reliability and efficacy of this automated technology for fitting PROSE devices. Data from real-time measurement of the human eye ocular surface topography will be used to fabricate a prosthetic lens. The fit of the PROSE device will be evaluated, as well as the subjective comfort of the fit.
KC is a degenerative disorder of the cornea. Keratoconus etiopathogenesis remains unclear and may rely on environmental and genetic factors. Usually considered as a rare disease (<1/2000), but the prevalence is nowadays growing worldwide up to 1/500. In that pathology, cornea progressively gets thinner, and there is a deformation of the corneal surface which can induce high order optical aberrations and visual impairment. Eye rubbing is certainly the main factor in the progression or development of keratoconus (KC), yet it is only very partially evaluated and quantified in current management. Environmental and clinical factors will be collected and associated with a eye rubbing Questionnaire, specifically pointing out eye rubbing.
The aim of this study is to detect the safety and effectiveness of contact lens assisted corneal cross linking in managing progressive keratoconus with thin corneas CACXL was done for 40 eyes of 30 of keratoconic patients presented to cornea outpatient clinic in Kasr Alainy teaching hospital The UDVA ,BDVA KMAX, thinnest corneal thickness pre-operative and 9 months postoperatively and the endothelial cell count was measured preoperative and 3 months postoperative Demarcation line was measured after 1 month by using ASOCT There was statistical significant difference in UDVA and BDVA, there was stabilization of Kmax there was decrease in endothelial cell count but not statistically significant According to results the procedure seems to be effective and safe un managing progressive keratoconus.