Unlabelled: Congenital aniridia is a rare bilateral ocular malformation characterized by the partial or complete absence of the iris and is frequently associated with various anomalies, including keratopathy, cataract, glaucoma, and foveal and optic nerve hypoplasia. Additionally, nearly 50% of individuals with congenital aniridia experience symptoms of ocular dryness. Traditional treatment encompasses artificial tears and autologous serum.
View Article and Find Full Text PDF: Dry eye disease (DED) is a common and very symptomatic pathology that affects normal daily activity. The aim of the study was to evaluate the efficacy of plasma rich in growth factors (PRGF) added to one routine treatment protocol for DED (artificial tears substitutes, lid hygiene, and anti-inflammatory therapy). : Patients were divided into two groups of treatment: standard treatment group ( = 43 eyes) and PRGF group ( = 59).
View Article and Find Full Text PDFBackground: The purpose of this study is to evaluate the utility and safety of plasma rich in growth factors immunosafe eye drops (is-ePRGF) in the postoperative treatment of non-penetrating deep sclerectomy (NPDS).
Methods: This is a case-control study in patients with open-angle glaucoma. Group one (control) was not treated with is-ePRGF, while group two (is-ePRGF) was treated (four times a day for four months).
Purpose: In the last few decades, several blood derived products such as platelet-rich plasma (PRP), plasma rich in growth factors (PRGF) and autologous serum (AS) have been used for the treatment of ocular surface disorders. Recently, insulin has been proposed to be used as an alternative for the treatment of ocular surface diseases. The aim of this study was to evaluate the biological potential of PRGF eye drops in comparison with AS and insulin on ocular surface cells.
View Article and Find Full Text PDFAims: To describe the aetiology and microbial susceptibility profile of endophthalmitis cases treated at an ophthalmological referral centre in Colombia.
Material And Methods: A retrospective descriptive study was carried out with all endophthalmitis cases referred to the Fundación Oftalmológica de Santander FOSCAL (Floridablanca, Colombia) from 1 January 2012 to 31 December 2015.
Results: 121 eyes of 121 patients were evaluated.
Arch Soc Esp Oftalmol (Engl Ed)
November 2022
Objective: To publish the clinical characteristics of peripheral exudative hemorrhagic chorioretinopathy (PHEC) in the Spanish population.
Methods: Retrospective study and analysis of results in patients diagnosed with PHEC. The clinical characteristics, by OCT, the treatment used and the evolution after treatment were collected.
The aim of this study was to evaluate the use of PRGF (plasma rich in growth factors) as an adjuvant to PPV (pars plana vitrectomy) in recurrent, persistent, or poor prognosis MH (macular hole). Patients with MH were treated with PPV plus adjuvant therapy (PRGF membrane (mPRGF) and injectable liquid PRGF (iPRGF)). The anatomical closure of MH and postoperative BCVA (best-corrected visual acuity) were evaluated.
View Article and Find Full Text PDFThis prospective and comparative study aimed to compare the use of a conjunctival autograft (CAG), plasma rich in growth factors fibrin membrane (mPRGF) or amniotic membrane transplantation (AMT) in primary pterygium surgery. Patients were assigned for surgery with CAG (group A), mPRGF (group B), or AMT (group C). Pterygium recurrence, Best Corrected Visual Acuity (BCVA), graft size (measured with anterior segment optical coherence tomography (AS-OCT)), and ocular surface symptoms (visual analogue scale (VAS) and ocular surface disease index (OSDI)) were evaluated.
View Article and Find Full Text PDFBackground: Timely detection of early microvascular changes in patients with prediabetes could help reduce the likelihood of progression of diabetes-related retinal complications.
Aim: To determine early microvascular changes in patients with prediabetes using optical coherence tomography angiography (OCT-A).
Methods: In this single-center retrospective case-control study, macular OCT-A images of superficial capillary plexus (SCP) and deep capillary plexus (DCP) were analyzed in non-diabetic controls, and prediabetic and diabetic subjects.
This study aimed to investigate the use of Plasma Rich in Growth Factors (PRGF) associated with tissue ReGeneraTing Agent (RGTA) drops for the treatment of noninfectious corneal ulcers. RGTA treatment was applied (one drop every two days); however, if ulcer closure was not achieved, PRGF eye drops treatment was added (four times/day). The time taken to reach the ulcer closure, the Best Corrected Visual Acuity (BCVA), intraocular pressure (IOP), Visual Analog Scale (VAS, in terms of frequency and severity of symptoms), and Ocular Surface Disease Index (OSDI) were evaluated.
View Article and Find Full Text PDFIntroduction: The use of blood derivatives and especially Plasma rich in growth factors (PRGF), for regenerative purposes has been a common trend along the last decades in the field of oral surgery, dermatology, orthopedics, and more recently in ophthalmology.
Areas Covered: PRGF is a type of platelet-rich plasma that is being explored for the treatment of ocular injuries. The present review article highlights 50 ophthalmology-related publications about the application of PRGF in the treatment of acute and chronic pathologies in ophthalmology as well as most relevant challenges and future prospects.
The purpose of this work is to describe the use of Fibrin-Plasma Rich in Growth Factors (PRGF) membranes for the treatment of a rabbit alkali-burn lesion. For this purpose, an alkali-burn lesion was induced in 15 rabbits. A week later, clinical events were evaluated and rabbits were divided into five treatment groups: rabbits treated with medical treatment, with a fibrin-PRGF membrane cultured with autologous or heterologous rabbit Limbal Epithelial Progenitor Cells (LEPCs), with a fibrin-PRGF membrane in a Simple Limbal Epithelial Transplantation and with a fibrin-PRGF membrane without cultured LEPCs.
View Article and Find Full Text PDFOphthalmic Surg Lasers Imaging Retina
March 2021
Background And Objective: Neovascularization is a sight-threatening, uncommon complication of posterior uveitis that often goes undetected until persistent clinical findings appear, or in light of treatment failure. This could be attributed to the relative similarity of activity signs in inflammatory neovascular membranes (NVM) and active posterior uveitis. The purpose of the present study is to recognize imaging features that distinguish uveitic neovascularization from active uveitis using swept-source optical coherence tomography angiography (SS-OCTA).
View Article and Find Full Text PDFPurpose: To evaluate the safety and efficacy of the surgical use of autologous plasma rich in growth factors fibrin membrane (mPRGF) in improving corneal wound healing and regeneration in a variety of complex ocular surface defects.
Methods: Chart review on 15 eyes of 14 included patients undergoing ocular surface intervention using intraoperative mPRGF at the Bascom Palmer Eye Institute and at the Instituto Oftalmológico Fernández-Vega was performed. Patients were grouped based on type of intervention or condition (penetrating keratoplasty, superficial keratectomy, neurotrophic or persistent corneal ulcers, and corneal perforation).
To evaluate the efficacy and safety of plasma rich in growth factors (PRGF) in photorefractive keratectomy (PRK) versus Mitomycin C (MMC).This is a comparative, longitudinal and retrospective case-control study (MMC vs PRGF), in patients with a spherical correction from -0.25 to -8.
View Article and Find Full Text PDFMater Sci Eng C Mater Biol Appl
September 2020
Biological membranes are currently used in Ophthalmology in order to treat different ocular disorders. These membranes have different properties such as cellular biocompatibility and promoting wound healing. Moreover, intrinsic antimicrobial properties could also be desirable because it would allow their use reducing the risk of infections.
View Article and Find Full Text PDFArch Soc Esp Oftalmol (Engl Ed)
May 2021
Objective: To report the ocular manifestations in patients with leukaemia.
Methods: This is a retrospective, descriptive and observational study in patients with ocular manifestations of leukaemia.
Results: A total of 14 eyes were evaluated corresponding to 8 patients (5 women and 3 men) with ocular manifestations of leukaemia.
Purpose: The objective was to evaluate the clinical results obtained from the use of immunosafe plasma rich in growth factors (isPRGF) in the treatment of patients with cicatrizing conjunctivitis (CC) who had not responded to the usual therapy.
Patients And Methods: This is a retrospective study that included patients diagnosed with CC, in whom isPRGF was used in different phases (I: eye drops; II: eye drops and injectable; III: eye drops, injectable and surgical treatment) to achieve control of the inflammation. As a clinical follow-up of the patients, the better corrected visual acuity (BCVA), degree of inflammation (measured from 1 to 4), the severity of the CC, Schirmer I test, IOP and TBUT were analyzed.
Purpose: Persistent macular hole (PMH) is a challenge for retina surgeons. There are limited surgical techniques described achieving PMH closure. For more than a decade, techniques with blood derivatives have been described without optimal outcomes.
View Article and Find Full Text PDFPurpose: To describe the case of a patient with a recurrent large myopic macular hole (MH), who was successfully treated with a plasma rich in growth factors (PRGF) membrane.
Case Report: A 71-year-old patient presented a myopic MH in his right eye. One month later, pars plana vitrectomy with internal limiting membrane (ILM) peeling was performed, achieving closure of the MH.
Purpose: To evaluate the efficacy and safety of plasma rich in growth factors eye drops for the treatment of corneal and ocular surface disorders in patients with graft versus host disease.
Methods: This retrospective and longitudinal study included graft versus host disease patients with ocular disorders. The resolution of corneal ulcers (area and density staining) was evaluated as primary outcome.
Ophthalmic Surg Lasers Imaging Retina
October 2018
Background And Objectives: To describe the imaging characteristics of polypoidal choroidal vasculopathy (PCV) in optical coherence tomography angiography (OCTA) and demonstrate its use as diagnostic method for this pathology in a Latin American population.
Patients And Methods: A case series.
Results: Fourteen eyes were evaluated.
Purpose: The main objective of this study is to compare the protein expression of human keratocytes treated with Plasma rich in growth factors (PRGF) or autologous serum (AS) and previously induced to myofibroblast by TGF-β1 treatment.
Methods: Blood from healthy donor was collected and processed to obtain AS and PRGF eye drops. Blood derivates were aliquoted and stored at -80°C until use.
Purpose: The aim of this study was to evaluate the use of plasma rich in growth factors (PRGF) eye drops in patients with dry eye disease after laser-assisted in situ keratomileusis (LASIK) surgery.
Material And Methods: This is a longitudinal, retrospective, comparative, and descriptive study of 77 eyes of 42 patients with dry eye disease following LASIK surgery. This study was designed to evaluate the efficacy of PRGF treatment compared to conventional therapy (control group).
Purpose: To evaluate efficacy, safety, and predictability of sequential Ferrara-type intrastromal corneal ring segments (ICRS) and an extended range of vision intraocular lens (IOL) implantation in patients with keratoconus and cataract.
Methods: This study comprised patients with keratoconus and cataract that had ICRS implantation followed 6 months later by extended range of vision IOL implantation. The uncorrected distance visual acuity (UDVA), corrected distance visual acuity (CDVA), and residual refractive errors, analysed using vector analysis, were recorded preoperatively, 6 months after ICRS implantation, and 6 months after IOL implantation, respectively.