Background and Objectives: There are few data in the literature concerning the learning curve of tractional retinal detachment (TRD) surgery. We have analyzed the experience gained by a vitreoretinal surgeon over 10 years. Materials and Methods: A retrospective, comparative study of 34 TRD cases operated using 20G instruments between 2008 and 2011 (group A) and 94 cases operated using 23G instruments between 2015 and 2019 (group B). The preoperative characteristics, the type of endotamponade, and the anatomical and functional success were reviewed. Results: The group A patients had a significantly higher rate of concomitant vitreous hemorrhage (VH) at presentation (64.7% vs. 37.2%) and of non-macular retinal detachments (52.9% vs. 39.3%). The rate of silicone oil endotamponade was high in both groups (76.4% vs. 68.1%), but in group B 25.5% were left without a tamponade (vs. none in group A). A postoperative anatomical success was obtained in 76.5% of eyes in group A and 84.04% of eyes in group B (where it was improved to 89.3% by reinterventions). The presenting visual acuity (VA) was very low in both groups (0.01 and 0.05, respectively). The proportion of eyes with improved or stabilized VA was 85.3% in group A and 79.8% in group B (statistically non-significant difference). Conclusions: The anatomical success rate improves quite slowly with increasing surgeon experience and can be further improved by reinterventions. Visual improvement does not match the rate of anatomical improvement. With increasing experience and self-confidence, the surgeon will approach more difficult cases, a fact that may slow down the increase in surgical success rates.
Uveal malignant melanoma is a rare malignant tumor comprising less than 5% of melanoma cases. It is nevertheless the intraocular tumor with the highest incidence in adults, that arises from the melanocytes in the uveal tract. The authors present the case of a patient with locally advanced choroidal melanoma: from presentation to diagnosis, treatment, and prognosis. A 63-year-old female patient presented in the Ambulatory of the Emergency County Hospital, Craiova, Romania, on the February 1, 2021, accusing visual acuity drop and photophobia in her left eye for about three weeks. Pathology examination in Hematoxylin-Eosin (HE) staining reveals a dense cell proliferation, with small and medium spindle cells and pigment production. The following immunohistochemical markers were used in our study: human melanoma black 45 (HMB45), Ki67, cyclin D1, B-cell lymphoma 2 (Bcl2), S100, Wilms' tumor 1 (WT1), p16, and p53. Uveal melanoma is a malignant tumor that can arise in all the uveal components: iris, ciliary body, and choroid. Out of the three components, iris melanomas have the best prognosis, while ciliary body melanomas have the worst prognosis. It is mandatory for the patient to respect the follow-up schedule, as follow-ups can provide early diagnosis of eventual metastasis.
Leber hereditary optic neuropathy (LHON) is a mitochondrial disease leading to optic atrophy due to degeneration of the retinal ganglion cell. A curative treatment is not available at the moment, but a new antioxidant drug, Idebenone, is expected to reduce the progression of the disorder. Two male patients, genetically confirmed with LHON, were clinically, morphologically, and electrophysiologically evaluated, before and three, six, nine and 12 months after starting the treatment. The patient with 3460G>A mutation in mitochondrially-encoded nicotinamide adenine dinucleotide, reduced form (NADH):ubiquinone oxidoreductase core subunit (mtND)1 gene showed an improvement in visual acuity, visual field, and visual evoked potentials with no effect on morphological examinations, while the patient with 11778G>A mutation in mtND4 gene showed no functional, nor morphological recovery after one year of treatment. This study demonstrates that Idebenone, depending on the genetic profile of the disease, may be effective in functional improvement in patients with LHON.
Pterygium is a frequent ocular disease whose etiopathology is not completely known. Several factors are considered involved in pterygium formation and progression, among which light exposure, age, dry eyes condition, bacterial infections or genetic predisposition. The purpose of our study was to perform a partial evaluation of the social history of 118 patients with pterygium. All of them presented lesions of various sizes, unilateral or bilateral, and underwent surgical removal. We have analysed potential correlations between the degree of progression (lesion size expressed in mm, measured before removal) and several factors: age, sex, residence, sun exposure, presence of chemical burns, smoking habits. According to our results, UV radiation was identified as an important factor, as patients with prolonged exposure exhibited larger lesions. Other factors presented less significant correlations with the size of pterygium lesions.
Purpose. To report a case of malignant glaucoma in a pseudophakic female patient, with no history of glaucoma, resolved through pars plana anterior vitrectomy.Case presentation. An 80-year-old female patient presented in our Emergency Department after a five-day history of pain in her left eye (LE). In the last day, the patient noticed marked visual loss and ocular pain. Visual acuity was light perception and Goldman tonometry was 80 mmHg in her LE. The biomicroscopy revealed absent peripheral and central anterior chamber (AC) and posterior chamber (PC) pseudophakia. Posterior segment ecography showed no vitreous or choroidal abnormalities. A peripheral laser YAG iridotomy was made and the patient was treated with intravenous 20% mannitol, topical timolol, topical brimonidine, and topical cycloplegics. 12 hours later, despite a patent iridotomy in the LE eye, intraocular pressure (IOP) was 55 mmHg, absent AC with severe corneal edema. The diagnosis of pseudophakic malignant glaucoma was made and laser YAG capsulotomy was performed with no resolution of symptoms and signs. 24 hours later, we performed pars plana anterior vitrectomy. Postoperatively, the AC depth increased and the IOP decreased to 20mmHg. After a week, the patient was discharged with hand movement perception visual acuity in her LE, 20 mmHg IOP, reduced corneal edema, normal depth AC. After a month, the corneal edema resolved, the visual acuity was 2/50, IOP was 20mmHg, and the AC had a normal depth.Conclusion. Malignant glaucoma is a sight threatening condition, reported in pseudophakic eyes. Although, literature describes cases solved by cycloplegics and laser YAG capsulotomy, our patient needed pars plana anterior vitrectomy for the resolution of symptoms and signs.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
customersupport@researchsolutions.com
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.