Publications by authors named "Agustin Del Valle-Penella"

Background: Inherited retinal dystrophies are hereditary diseases which have in common the progressive degeneration of photoreceptors. They are a group of diseases with clinical, genetic, and allelic heterogeneity. There is limited information regarding the genetic landscape of inherited retinal diseases in Mexico, therefore, the present study was conducted in the northeast region of the country.

View Article and Find Full Text PDF

Purpose: To compare vitreous substitution with silicone oil to perfluoropropane gas in proliferative diabetic retinopathy subjects undergoing pars plana vitrectomy (PPV) for the treatment of tractional retinal detachment or extensive fibrous proliferation.

Design: Randomized clinical trial.

Methods: Three hundred and two proliferative diabetic retinopathy subjects with tractional retinal detachment or extensive fibrous proliferation requiring PPV were enrolled into the trial.

View Article and Find Full Text PDF

Purpose: To evaluate the benefits of internal limiting membrane peeling in proliferative diabetic retinopathy subjects undergoing pars plana vitrectomy for the treatment of vitreous hemorrhage.

Methods: Two hundred and fifty-eight proliferative diabetic retinopathy subjects undergoing pars plana vitrectomy for vitreous hemorrhage were enrolled into the trial. Patients were randomized into one of two cohorts: Group A patients underwent internal limiting membrane peeling, whereas Group B patients did not undergo internal limiting membrane peeling.

View Article and Find Full Text PDF

Aim: The aim of this case report is to describe the technique and response using frameless radiosurgery technique in intraocular metastases.

Background: Intraocular metastases are the most common malignant lesion within the eye and its prevalence is probably underestimated. This is of great interest for oncologist as there are new treatment options with high rates of tumor control maintaining patient's quality of life.

View Article and Find Full Text PDF

Background: Corneal pachymetry is widely used for refractive surgery and follow up in keratoconus, accurate measurement is essential for a safe surgery.

Objective: To assess intraobserver reliability of central corneal thickness (CCT) measurements using optical low-coherence reflectometry (OLCR) technology and its agreement with ultrasonic pachymeter (US).

Method: Randomized and prospective comparative evaluation of diagnostic technology.

View Article and Find Full Text PDF

Background: Corneal pachymetry is widely used for refractive surgery and follow up in keratoconus, accurate measurement is essential for a safe surgery.

Objective: To assess intraobserver reliability of central corneal thickness (CCT) measurements using optical low-coherence reflectometry (OLCR) technology and its agreement with ultrasonic pachymeter (US).

Method: Randomized and prospective comparative evaluation of diagnostic technology.

View Article and Find Full Text PDF