1,720,979 research outputs found
Immediate sequential bilateral cataract surgery: Prevalence, attitudes and concerns Among Italian ophthalmologists
No full textPurpose: to investigate the existing practice patterns of immediate sequential bilateral cataract surgery (ISBCS) in Italy and to assess ophthalmologists' attitudes towards performing ISBCS in the future for cataract treatment. Methods: It is a multicenter cross-sectional study. From February,1st 2023 to March, 1st 2023 the Members of the Italian Society of Cataract and Refractive Surgery (AICCER) as well as the attendees of its annual national congress were invited to anonymously complete an electronic 7-item questionnaire on their current ICBCS practice. Questions included the average number of procedures per month, the main indications for ICBCS, and the main reasons for performing and not performing ISBCS. Data were analyzed using descriptive statistics. Results: of the 2300 recipients, 246 (10.7%) completed the survey. Of the respondents, 156 (63.4%) replied to perform ISBCS, most of them (82%) occasionally (1 to 5 procedures per month). Fifty-three percent (130 ophthalmologists) considered adopting ISBCS as routine practice in the near future. The conditions most considered for ISBCS were age-related cataract surgery under general and topical anesthesia and congenital cataract surgery. The availability of separate instruments for the two eyes as well as patient and hospital advantages were the most important reasons for performing ISBCS. The risk of bilateral endophthalmitis and medicolegal issues were the main reasons for not performing ISBCS. Conclusions: ISBCS remains controversial among Italian surgeons, despite growing evidence of its safety and efficacy. The risk of potentially blinding complications such as bilateral endophthalmitis, together with medicolegal concerns are the principal barriers to ISBCS implementation in routine practice
Corneal epithelial changes in a patient treated with belantamab mafodotin
Full text linkThe aim of the study is to report a case of corneal epithelial changes in a patient with refractory multiple myeloma (MM) who was treated with belantamab mafodotin (BM). A 55-year-old man diagnosed with refractory MM was referred to our hospital for treatment with BM, an antibody-drug conjugate targeting B-cell maturation antigen. After 33 days of treatment, the patient experienced a bilateral reduction in visual acuity (VA), along with dry eye symptoms such as itchy eyes and a sensation of having a foreign body. Slit-lamp examination revealed the presence of diffuse microcystic epithelial changes throughout the cornea. BM treatment was discontinued by the oncologist. Sixty days after stopping belantamab, VA gradually improved and the microcystic epithelial alterations progressively diminished. Ninety days after discontinuation of therapy, only a few microcystic epithelial alterations remained, and the patient had 20/20 VA in both eyes. While BM is an effective therapy for refractory MM, corneal epithelial changes are among the most common side effects of this treatment. Close collaboration between ophthalmologists and oncologists is crucial for assessing ocular adverse effects and tailoring treatment accordingly
Six Cases of Polypoidal Choroidal Vasculopathy in Eyes with Choroidal Nevi
Full text linkIntroduction: The aim of this study was to report the cases of 6 patients with the coexistence of polypoidal choroidal vasculopathy (PCV) and choroidal nevi. Case Presentation: Six patients with the coexistence of PCV and choroidal nevi were thoroughly evaluated by slit-lamp biomicroscopy examination, color fundus photography, optical coherence tomography (OCT), OCT angiography (OCT-A), fluorescein angiography (FA), indocyanine green angiography (ICG-A), fundus blue autofluorescence (BAF), and ocular ultrasound (OU). The typical features of PCV and nevi were present in all patients, three of whom were treated with intravitreal anti-angiogenic agents. In each clinical case, the choroidal Haller’s vessels adjacent to the nevus were visibly more dilated compared to normal. Color fundus photography, OCT, OCT-A, FA, ICG-A, BAF, and OU revealed similar findings across all cases. Observations revealed that choroidal nevi could instigate modifications in the outer retina, resulting in persistent alterations capable of triggering the formation of neovascularization. Conclusion: The occurrence of a PCV alongside nevus is an uncommon complication. Findings from all exams performed were consistent across all cases, highlighting the potential link between PCV and nevi
Phacoemulsification Wound Burn and Its Management
Full text linkIntroduction: The production of ultrasonic energy during phacoemulsification is associated with heat generation that could damage ocular tissues, particularly at the corneoscleral wound site. Case presentation: This study presents an 89-year-old patient with senile hypermature cataract and Fuchs endothelial dystrophy developing severe thermal corneoscleral injury during phacoemulsification. At presentation, visual acuity was finger count at 40 cm and there was a 1 × 2-mm area of corneal melting at the corneal tunnel with diffuse corneal oedema. After 1 month, a temporal circular corneal patch graft was applied to the corneal burn. A penetrating keratoplasty was performed 16 months after the first surgery. Conclusion: Corneal surgery, including lamellar patch grafts and full-thickness penetrating grafts, could be used, when necessary, to restore the cornea's integrity. These procedures could eliminate corneal scarring, decrease astigmatism, and improve vision in patients with phacoemulsification burns
Long-term outcomes of canaloplasty and phaco-canaloplasty in the treatment of open angle glaucoma: a single-surgeon experience
Full text linkPurpose: To evaluate and compare the long-term outcomes of canaloplasty and phaco-canaloplasty in the treatment of open angle glaucoma and assess the prognostic factors associated with surgical outcome. Methods: A 48-month retrospective analysis was performed on n = 133 open angle glaucoma eyes treated with canaloplasty and n = 57 open angle glaucoma eyes treated with phaco-canaloplasty by a single surgeon. Surgical success was defined according to six criteria, achieving a target intraocular pressure (IOP) ≤ 21, 18 or 15 mmHg on glaucoma medications (qualified success) or without any further treatment (complete success), including laser therapy or surgery. Kaplan-Meier survival analysis and Cox regression analysis were performed to evaluate surgical success and preoperative factors associated with surgical outcome. Surgical complications in the early postoperative period were compared between canaloplasty and phaco-canaloplasty. Results: Canaloplasty and phaco-canaloplasty significantly reduced postoperative IOP and number of glaucoma medications (p = 0.001 for both). Phaco-canaloplasty showed higher rates of cumulative surgical success over canaloplasty, but only for target IOP ≤ 21 and ≤ 18 (p = 0.018 and p = 0.011, respectively). A preoperative number of > 4 glaucoma medications predicted surgical failure. Phaco-canaloplasty was associated with a higher rate of IOP peaks in the first month compared with canaloplasty (40.4% vs 12.7%, p = 0.000). Conclusion: Canaloplasty and phaco-canaloplasty demonstrated long-term efficacy in the treatment of open angle glaucoma, with phaco-canaloplasty showing higher rates of surgical success compared to canaloplasty, but not for target IOPs lower than 16 mmHg. Patients on more than 4 preoperative glaucoma medications may not be good candidates for canaloplasty and may benefit from other surgical options
Impact of corneal parameters, refractive error and age on density and morphology of the subbasal nerve plexus fibers in healthy adults
Full text linkThe purpose of this study was to analyze corneal sub-basal nerve plexus (SBNP) density and morphology and their relationships with corneal parameters and refractive status. In this single center study, in vivo confocal microscopy (IVCM) was performed in 76 eyes of 38 healthy subjects aged 19–87 (mean age 34.987 ± 1.148). Nerve fiber analysis was performed using Confoscan 4 microscope with semi-automated software (Nidek Technologies, Italy) The nerve fiber length (NFL) μm/mm2, nerve fiber density (NFD) no./mm2, tortuosity coefficient (TC), and nerve beadings density (NBD) no./mm were considered. Relationship between SBNP parameters and corneal curvature, thickness, diameter, and refraction were analyzed. Additionally, the association with gender, laterality and age were determined. NFL was inversely correlated with age (r = − 0.528, p < 0.001), myopic refractive error (spherical value) (r = − 0.423, p < 0.001), and cylindrical power (r = − 0.340, p = 0.003). NFD was inversely correlated with age (r = − 0.420, p < 0.001) and myopic refractive error (r = − 0.341, p = 0.003). NBD showed a low inverse correlation with cylindrical power (r = − 0.287, p = 0.012) and a slight positive correlation with K (r = 0.230, p = 0.047). TC showed a significant negative correlation between age (r = − 0.500, p < 0.001) and myopic refractive error (r = − 0.351, p = 0.002). Additionally, there were strong positive correlations between NFL and NFD (r = 0.523, p < 0.001), NFL and TI (r = 0.603, p < 0.001), and NFD and TC (r = 0.758, p < 0.001). Multiple regression analysis revealed age to be
the most significant factor affecting SBNP density (B = − 0.467, p = 0.013) and length (B = − 61.446, p < 0.001); myopic refractive error reduced both SBNP density (B = − 2.119, p = 0.011) and length (B = − 158.433, p = 0.016), while gender and laterality had no significant effects (p > 0.005). SBNP fiber length decreases with age, myopic refractive error and cylindrical power. SBNP fiber density reduces with age and myopic refractive error. Corneal nerve parameters are not influenced by gender or laterality
The efficacy of a netilmicin/dexamethasone gel combination in the treatment of posterior blepharitis in moderate-severe dry eye patients
No full textPurpose: To evaluate the safety and efficacy of netilmicin/dexamethasone combination in the treatment of meibomian gland dysfunction (MGD)-associated posterior blepharitis. Methods: In this prospective and controlled study were enrolled 40 patients with MGD and symptoms of dry eye disease. Two groups were established: 20 patients (group 1) received netilmicin 3 mg/ml and dexamethasone 1 mg/ml eye gel, whereas in group 2 (20 patients) received vehicle for 15 days. Patients were evaluated at baseline, 15 and 45 days, including SANDE and VARS questionnaire, non-invasive tear film breakup time (NIBUT), tear meniscus height (TMH), ocular redness and meibography score. Moreover, fluorescein tear-film breakup time (TBUT), fluorescein ocular surface staining, lid margin evaluation including hyperemia, edema and meibum expressibility and quality examinations were carried out. Furthermore, intraocular pressure (IOP) and best-corrected visual acuity (BCVA) were considered as safety parameters. Results: In group 1, at 15 and 45 days there were statistically significant changes in VARS and SANDE score (p < 0.0001) as well as lid margin parameters, TBUT and fluorescein ocular surface staining (p < 0.0001). Comparing the two groups, a significant improvement of SANDE score was observed at 15 days in group 1 as well as lid margin parameters, TBUT and fluorescein ocular surface staining at 15 and 45 days (all p < 0.0001). Conclusion: Netilmicin/dexamethasone combination is effective and safe to treat MGD-associated posterior blepharitis improving both symptoms and ocular surface signs
Clinical and instrumental assessment of the corneal healing in moderate and severe neurotrophic keratopathy treated with rh-NGF (Cenegermin)
No full textPurpose: To evaluate corneal healing in patients with moderate and severe neurotrophic keratitis (NK) treated with topical rh-NFG (Cenegermin). Methods: Twenty-one patients (12F and 9M) aged from 21 to 93 years (62.5 ± 19.4) with moderate and severe NK were enrolled in the study. The patients were divided into 2 groups accordingly to the severity of the disease. The underlying causes of NK were determined. The VAS questionnaire was dispensed. The ocular examination comprised slit lamp evaluation, ocular surface assessment with Keratograph 5M (Oculus, Germany), corneal sensitivity with Cochet-Bonnet esthesiometer (Lunneaux, France) and corneal thickness measurement with AC-OCT (DRI, Triton, Topcon, Japan). The drops of Cenegermin 0.002% were administrated 6 times daily for 8 weeks. All participants were evaluated at baseline, after 4 and 8 weeks of the treatment. The area of corneal defect with maximum diameter less than 0.5 mm was considered as healed. The main outcome measures were corneal healing, corneal sensitivity recovery and corneal thickness in the ulcer group. Results: The herpetic keratitis was the most common cause of NK. Thirteen eyes were affected by severe grade of NK with corneal ulcer and 8 eyes presented a moderate grade. After 8 weeks a complete healing of the corneal defects was registered both in moderate and severe NK. Significant increase of the corneal sensitivity and thickness were registered. Conclusions: The rh-NGF (Cenegermin) resulted effective in the treatment of the severe and moderate NK with significant recovery of the corneal sensitivity and healing of the corneal defects in both groups
Neurotrophic Keratopathy in Systemic Diseases: A Case Series on Patients Treated With rh-NGF
Full text linkPURPOSE: To evaluate the prevalence, clinical ocular presentation and corneal healing in moderate and severe neurotrophic keratopathy (NK) caused by systemic diseases and treated with rh-NGF. SETTING: Department of Biomedical and Dental Sciences and Morphofunctional Imaging, Ophthalmology Clinic, University of Messina, Italy. DESIGN: Retrospective observational study of case series. MATERIALS AND METHODS: In this retrospective observational study 11 patients (five female and six males) aged from 24 to 88 years (55.4 ± 21.3 years) with moderate and severe NK caused by systemic diseases were enrolled. The VAS questionnaire was dispensed. The ocular examination comprised slit lamp evaluation, ocular surface assessment with Keratograph 5M (Oculus, Germany), corneal sensitivity with Cochet-Bonnet esthesiometer (Lunneaux, France) and corneal thickness measurement with AC-OCT (DRI, Triton, Topcon, Japan). The underlying systemic causes of NK were determined. RESULTS: The main cause of NK was post-neuroma surgery (36%), followed by diabetes (18%). The remaining causes were rheumatoid arthritis (9%), post-traumatic (9%), post-surgery (9%), atopia (9%), Graves' disease (9%). Seven eyes presented severe grade of NK with corneal ulcer and in four a moderate grade was registered. The rh-NGF (Cenegermin) was administered with a standard protocol one drop six times daily for 8 weeks. The complete healing of all corneal defects was registered at the end of the treatment. CONCLUSIONS: The post-neuroma surgery was the most common cause of NK and severe grade was clinically more represented. The rh-NGF proved effective to promote corneal recovery with all defects healed after the treatment
OCT-based deep-learning models for the identification of retinal key signs
Full text linkAbstract A new system based on binary Deep Learning (DL) convolutional neural networks has been developed to recognize specific retinal abnormality signs on Optical Coherence Tomography (OCT) images useful for clinical practice. Images from the local hospital database were retrospectively selected from 2017 to 2022. Images were labeled by two retinal specialists and included central fovea cross-section OCTs. Nine models were developed using the Visual Geometry Group 16 architecture to distinguish healthy versus abnormal retinas and to identify eight different retinal abnormality signs. A total of 21,500 OCT images were screened, and 10,770 central fovea cross-section OCTs were included in the study. The system achieved high accuracy in identifying healthy retinas and specific pathological signs, ranging from 93 to 99%. Accurately detecting abnormal retinal signs from OCT images is crucial for patient care. This study aimed to identify specific signs related to retinal pathologies, aiding ophthalmologists in diagnosis. The high-accuracy system identified healthy retinas and pathological signs, making it a useful diagnostic aid. Labelled OCT images remain a challenge, but our approach reduces dataset creation time and shows DL models’ potential to improve ocular pathology diagnosis and clinical decision-making
- …
