View clinical trials related to Macular Holes.
Filter by:Prospective, randomized, unmasked interventional study. To evaluate anatomical and functional results through microperimetry in cases of refractory or large macular holes (MH), using amniotic membrane (AM) or internal limiting membrane ( ILM ).
A retrospective review of medical charts of patients having undergone vitrectomy with ILM Peeling and ILM flap technique for macular hole repair.
Blindness can be caused by many ocular diseases, such as diabetic retinopathy, retinal vein occlusion, age-related macular degeneration, pathologic myopia and glaucoma. Without timely diagnosis and adequate medical intervention, the visual impairment can become a great burden on individuals as well as the society. It is estimated that China has 110 million patients under the attack of diabetes, 180 million patients with hypertension, 120 million patients suffering from high myopia and 200 million people over 60 years old, which suggest a huge population at the risk of blindness. Despite of this crisis in public health, our society has no more than 3,000 ophthalmologists majoring in fundus oculi disease currently. As most of them assembling in metropolitan cities, health system in this field is frail in primary hospitals. Owing to this unreasonable distribution of medical resources, providing medical service to hundreds of millions of potential patients threatened with blindness is almost impossible. To solve this problem, this software (MCS) was developed as a computer-aided diagnosis to help junior ophthalmologists to detect 13 major retina diseases from color fundus photographs. This study has been designed to validate the safety and efficiency of this device.
A prospective randomised study comparing the near visual acuity outcomes using Salzburg Reading Desk in pseudophakic patients with idiopathic full-thickness macular hole treated with pars plana vitrectomy with internal limiting membrane peeling versus inverted flap technique. The aim of the study is confirm or disprove the hypothesis, that the near visual acuity results of pars plana vitrectomy with inverted flap technique for idiopathic macular hole are not inferior to pars plana vitrectomy with complete internal limiting membrane peeling technique. Patients will be followed for 6 months after the operation and near best corrected visual acuity testing on Salzburg reading desk, distance best corrected visual acuity on ETDRS tables and microperimetry will be performed and compared between both groups. Also the macular hole closure rate and complication rate will be compared between both groups.
Macular hole is a full thickness retinal defect in the very centre of the retina that gives the sharpest vision. The condition causes a substantial deterioration of visual acuity, and operative measures are necessary in order to close the defect and improve the visual function. A macular hole has varying degrees of retinal oedema surrounding the hole edges. The oedema is maintained by continuous of liquid into the tissue and effectively prevents spontaneous closure. For that reason it is essential for macular hole closure that the macula has minimal contact with intraocular fluid in the very early postoperative phase. This is why the treatment included a long-lasting intraocular gas tamponade and typically, one week of face-down positioning (FDP) after surgery.Our aim is to investigate the impact of diurnal, orthostatic, and gravitational variations on macular hole morphology before and after surgery. The participants will be examinated with optical coherence tomography 8-10 am, 1 pm, and 3 pm. Between 8 am and 1 pm ,the patient is encouraged to an upright position. After the 1 pm examination, the patient will be positioned flat on the side of the eye with macular hole until the 3 pm examination. The surgery will be performed before 10 am. Postoperatively a randomization to face down positioning or no positioning until 3 am. Optical coherence tomography images through gas tamponade is made at 3 am.
The purpose of this study is to evaluate the effects of a structured exercise program on musculoskeletal pain of patients in face-down posture after retinal surgery.
To undertake a prospective randomized clinical trial of vitrectomy and gas tamponade to treat macular hole, utilizing a small amount of undiluted C3F8 (perfluoropropane) versus a large amount of diluted C3F8 versus a small amount of undiluted SF6 (sulfur hexafluoride) versus a large amount of diluted SF6.
The purpose of this study is to compare the performance and anatomic outcomes of the Sharkskin internal limiting membrane (ILM) forceps and the Grieshaber ILM forceps in macular surgery. Peeling of the ILM is a difficult aspect of vitreoretinal surgery and often daunting task from a vitreoretinal fellow's perspective. The hypothesis is that the newer Sharkskin forceps have a larger platform and micro-abrasions along the forcep surface to increase grasping ability and potentially limit trauma to the retina surface compared to the Grieshaber forceps. This project may also serve as an education tool for fellows learning the basics of ILM peeling.
Report efficiency and clinical outcomes using 25-gauge, bevel-tip, 20000 cut per minute vitrectomy probe among eyes with various vitreo-retinal diseases
The purpose of this study is to compare the efficacy of oral sedation to intravenous sedation with anesthesiology support and monitoring.