Browsing by Author "Mayali H."
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Item Cross-validation of the Turkish version of the 25-item National Eye Institute Visual Functioning Questionnaire (NEI-VFQ 25)(2005) Toprak A.B.; Eser E.; Guler C.; Baser F.E.; Mayali H.Purpose: To test the validity and reliability of the Turkish version of the self-administered form of the National Eye Institute Visual Functioning Questionnaire (NEI-VFQ 25). Methods: Patients with no limitations to respond to a health status interview and affected by a chronic eye disease were enrolled. The Turkish versions of the abbreviated form of World Health Organization Quality of Life (WHOQOL-BREF) and the NEI-VFQ 25 instruments were administered to all participants. Results: The mean (SD) age of the participants was 60.9 (14.5) years. There were 61 patients with one of the following conditions: Cataract (57.4%), diabetic retinopathy (13.2%), age related macular degeneration (ARMD) (11.4%), glaucoma (9.8%) and degenerative myopia (8.2%). The Cronbach alpha of the overall scale was 0.97; the Cronbach alpha ranged from 0.94 to 0.78 for the subscales. The physical, psychological, environmental and social domains of the WHOQOL-BREF had fair to good correlations with the NEI-VFO 25 (r = 0.68 to r = 0.26), which indicated a sufficient convergent validity. Patients with lower visual acuity (VA) had lower index scores than those with higher VA (p = 0.001), which showed a sufficient responsiveness. Conclusion: Statistical analysis showed that Turkish version of the NEI-VFQ is a valid and reliable instrument to measure vision-related quality of life in patients with chronic eye diseases. Copyright © Taylor & Francis Inc.Item Trabeculectomy for advanced glaucoma.(2011) Baser E.F.; Seymenoglu G.; Mayali H.The objective of this study is to evaluate the visual prognosis and postoperative course in advanced glaucoma patients who underwent trabeculectomy. The records of 30 patients with advanced visual field (VF) defects undergoing trabeculectomy were retrospectively reviewed. Severe VF defects were defined as those with a sensitivity of ≤5 dB either in more than 85% of test points, excluding the central four points, or in >75% of test points, including three of the central four points with threshold automated perimetry. Main outcome measures were intraocular pressure (IOP), corrected visual acuity (VA) and mean deviation (MD) of VF tests. Mean preoperative IOP, VA and MD values were compared with their respective postoperative values. The latest examination of each patient was used to determine postoperative outcome measures. In addition, any complications encountered were recorded. A total of 34 trabeculectomies were performed. The mean age was 59.3 years (13-80 years). The mean follow-up time was 41.1 months (3-120 months). Preoperatively the mean IOP was 28.4 ± 13.1 mmHg, and the mean postoperative IOP was 14.8 ± 5.0 mmHg (P = 0.001). Preoperatively the mean VA was 0.87 ± 80, and the mean value of the MD was -24.5 ± 6.7 dB. At the latest follow-up there was no significant difference in VA (0.89 ± 79, P = 0.699) and MD (-23.9 ± 6.7, P = 0.244) values. Transient hypotony occured in five eyes while one eye with mitomycin C trabeculectomy experienced extended hypotony. Ten eyes showed reduction of VA between 1 and 5 lines due to cataracts and five eyes had late bleb failure with uncontrolled IOP. One patient had late endophthalmitis and one patient presented with blebitis, both of which were successfully treated. No patients experienced wipe-out phenomenon. In conclusion, our study of advanced glaucoma patients undergoing trabeculectomy, vision was preserved with no cases of unexplained loss of central vision. IOP was largely controllable, with cataract being the leading factor decreasing VA at late term.Item Corneal haze and peripheral corneal arcus in a young patient: Lecithin-cholesterol acyltransferase deficiency; [Genç hastada kornea bulani{dotless}kli{dotless}ǧi{dotless} ve periferik kornea arkusu: Lesitin kolestrol açiltransferaz eksikliǧi](Turkish Ophthalmology Society, 2014) Mayali H.; Kiliç Ş.; Cansiz Ç.; Türkoǧlu M.Ş.; Başer E.F.A 23-year-old female patient applied to our clinic with the complaints of color changes in both of her corneas. Ophthalmological examination revealed 20/20 vision in both eyes. Intraocular pressure was 14 mmHg on the right eye and 12 mmHg on the left eye. Eye movements were normal and fundus examination revealed normal optic disc, macula, and peripheral retina. Biomicroscopic examination revealed diffuse haze in both of her corneas with circumferential arcus at the limbus and normal conjunctivae. Biochemical parameters were normal except for high-density lipoprotein values below 5 mg/ml, which was confirmed on repetitive tests. Together with ocular manifestations and low high-density lipoprotein values, a diagnosis of lecithin-cholesterol acyltransferase deficiency was made. In this article, a young patient who had low high density lipoprotein serum levels, peripheral corneal arcus, and corneal haze not affecting the visual acuity is presented.Item Neuroblastoma in a case with congenital horner's syndrome; [Konjenital horner sendromlu olguda nöroblastom](Turkish Ophthalmology Society, 2014) Mayali H.; Ilker S.S.; Kiliç Ş.; Sürücü B.; Ozgüven A.Miosis, ptosis, and ipsilateral facial anhidrosis are normally present in Horner's syndrome. Pathologies which show central, preganglionic and postganglionic residence in sympathetic chain are present in its etiology. A 3-month-old girl baby was admitted to our clinic for ptosis in the left eye. Heterochromia, ptosis in the left eye, myosis and, ipsilateral anhidrosis were detected in her examination. In view of these findings, it seemed possible that her disease could be congenital Horner's syndrome. Brachial plexus injury due to birth trauma plays a major role in the etiology of congenital Horner's syndrome. There was not any birth trauma history in our patient. The patient was diagnosed to have neuroblastoma as a result of etiologic tests. In conclusion, Horner's syndrome can be the presenting sign of childhood neuroblastoma. Therefore, it is advisable to examine the oculosympathetic system in detail in order to leave out any underlying serious disorder.Item Post-thyroidectomy iatrogenic Horner's syndrome with heterochromia(Iranian Society of Ophthalmology, 2016) Ulusoy M.O.; Kivanç S.A.; Atakan M.; Mayali H.Purpose: To present a case of iatrogenic Horner's syndrome seen together with the heterochromia in the post-thyroidectomy period. Methods: A 23-year-old female patient was admitted to our clinic with complaints of low vision in the eye and difference in eye color that developed over the past two years. In the left eye, myosis and minimal ptosis (~1 mm) was detected, and the color of the iris was lighter than the right eye. Results: The pre-diagnosis of left iatrogenic Horner's syndrome was finalized after 0.5% topical apraclonidine test. Conclusion: Heterochromia can be observed in iatrogenic Horner's syndrome. © 2016 Iranian Society of Ophthalmology.Item Ultra wide-field imaging in patients with diabetic retinopathy and branch retinal vein occlusion: Heidelberg spectralis vs ETDRS-7 fields angiography images; [Diyabetik Retinopati ve Retina Ven Dal Tıkanıklığı Olgularında Ultra Geniş Açılı Görüntüleme: Heidelberg Spectralis’e Karşı ETDRS-7 Alan Anjiografi Görüntüleri](Gazi Eye Foundation, 2019) Kayikçioğlu Ö.; Altinişik M.; Mayali H.; Yildirim A.; Kurt E.; İLker S.S.Purpose: To compare the Heidelberg Spectralis ultra-wide field fluorescein angiography (FA) and Early Treatment Diabetic Retinopathy Study (ETDRS)-7 field images in patients with diabetic retinopathy (DRP) and branch retinal vein occlusion (BRVO). Materials and Methods: FA images, obtained with Spectralis were retrospectively analysed. The images of the DRP and BRVO cases were enrolled in the study. The images were exported to the Microsoft Paint program and the circles pointing to 7-field images were digitally mounted on the wide-field images. ETDRS-7 field and wide field images were compared for distribution of ischemia and neovascularization (NV). Ischaemic areas were classified as mild, moderate or severe ischemia according to the area of one circle of the 7-field image. Results: A total of 136 images of DRP and seven images of BRVO cases were enrolled. 24 images were proliferative DRP while 112 images were nonproliferative DRP according to Spectralis images. ETDRS-7 field images failed to detect severe ischemia in 32 eyes (23.52%), moderate ischemia in 16 eyes (11,76%) and mild ischemia in 36 eyes (26,47%). Also 7-field images could not detect NV in three eyes (11,76%). Also standard 7-field images could not detect severe ischemia in two eyes with BRVO. Conclusion: Ultra-wide field FA images may provide additional informations compared to the ETDRS 7-field images in evaluating retinal vascular diseases which may cause increasing the grading and severity of the diseases. © 2019 Gazi Eye Foundation. All rights reserved.Item Evaluation of retinal fiber thickness and visual pathways with optic coherence tomography and pattern visual evoked potential in different clinical stages of obstructive sleep apnea syndrome(Springer, 2020) Kısabay Ak A.; Batum M.; Göktalay T.; Mayali H.; Kurt E.; Selçuki D.; Yılmaz H.Purpose: To investigate the possible changes in retinal nerve fiber layer (RNFL) by optic coherence tomography and in the amplitudes and peak times (PTs) in pattern visual evoked potential (pVEP) and to compare them in obstructive sleep apnea syndrome (OSAS). Methods: This prospective study included patients with mild OSAS (n = 30), severe OSAS (n = 30), and 30 control subjects. All patients were assessed after obtaining the approval from our hospital’s ethics committee. Results: There was no difference in age and gender between the groups (p = 0.184, p = 0.954). By analysis of variance, there was a significant difference in RNFL values among patients with mild OSAS, severe OSAS, and control for three measures of RNFL (average p = 0.044, nasal p = 0.003, inferior p = 0.027). In severe OSAS group, nasal and inferior quadrants of the RNFL were found to be thinner than the control group (p = 0.008, p = 0.031). We showed that the PT of P100 and N145 was prolonged in severe OSAS compared to the control group (p < 0.001) and that PT of P100 was prolonged in mild OSAS compared to the control group (p < 0.05). The amplitude of N75-P100 was significantly decreased in patients with both severe OSAS and mild OSAS compared to the control group (p < 0.001). Correlation of RNFL and pVEP values showed that the inferior quadrant RNFL thickness is correlated with both P100 and N145 PTs (r = 0.271*, p = 0.036 and r = 0.290*, p = 0.043, respectively) and N75-P100 amplitude (r = 0.378**, p = 0.003) in severe OSAS group. Conclusions: In mild and severe stages of the disease, edema and inflammation were evident and VEP PT and amplitudes were affected in both groups. Furthermore, thinning in RNFL in the severe stage of the disease might be associated with higher atrophy levels and prolonged exposure to hypoxia. © 2020, Springer-Verlag GmbH Germany, part of Springer Nature.Item A multimodal ophthalmic analysis in patients with systemic sclerosis using ocular response analyzer, corneal topography and specular microscopy(Springer, 2020) Mayali H.; Altinisik M.; Sencan S.; Pirildar T.; Kurt E.Purpose: To conduct a multimodal ophthalmic evaluation of systemic sclerosis (SSc) in patients using ocular response analyzer (ORA), Pentacam, and specular microscopy (SM). Methods: Thirty-one SSc patients and a group of age- and sex-matched controls were enrolled in this cross-sectional study. Corneal hysteresis (CH), corneal resistance factor (CRF), corneal-compensated intraocular pressure (IOPcc), and Goldmann-correlated IOP (IOPg) were measured with ORA. Anterior chamber depth (ACD), central corneal thickness (CCT), and corneal volume (CV) measurements were obtained using Pentacam. Corneal endothelial cell density (ECD) and CCT were evaluated by SM. Results: SSc patients had significantly lower CH, ACD, and ECD values compared to the control group (p = 0.018; < 0.001; < 0.001, respectively). There was no significant difference regarding CRF, IOP, CV, or CCT measurements acquired by Pentacam and SM. Regarding CCT, SM and Pentacam showed relatively better agreement in SSc patients. Conclusions: Multimodal imaging can provide more comprehensive and useful information regarding the ocular involvement of systemic diseases. The multimodal evaluation in our study demonstrated that the pathologic effects of SSc may manifest as reductions in ACD, corneal elasticity, and ECD before there are any detectable changes in corneal thickness or IOP. © 2019, Springer Nature B.V.Item RETRACTED ARTICLE: Evaluation of macular thickness and visual pathways using optic coherence tomography and pattern visual evoked potential in different clinical stages of obstructive sleep apnea syndrome(NLM (Medline), 2021) Kısabay Ak A.; Batum M.; Göktalay T.; Mayali H.; Kurt E.; Selçuki D.; Yilmaz H.AIM: The present study aimed to investigate and compare possible changes in amplitude and latency of pattern visual evoked potentials (PVEP) and thickness of quadrants of the macula (TQM) using optic coherence tomography (OCT). MATERIALS AND METHODS: According to polysomnography examinations, 30 mild, 30 severe, 30 controls were included in the study after approval from the ethics committee. RESULTS: No significant difference was found in age and gender between the groups (p = 0.184 and p = 0.954). Significant difference was found between external and internal superior TQM, mean thickness of ganglion cell layer in comparison of all three groups (p = 0.011, p = 0.047, p = 0.030). In comparison between severe OSAS and control groups, significant difference was found in internal nasal, internal superior and external superior TQM (p = 0.048, p = 0.033, p = 0.014) while no significant difference was found TQM in comparison between the mild OSAS and control groups. In comparison between the group of severe OSAS and controls, significant increase was found in P100 as well as N145 latencies whereas only P100 latency was found to increase when mild OSAS was compared with controls. No significant correlation was found between TQM and PVEP parameters in mild and severe OSAS patients. DISCUSSION: Latency and amplitude of PVEP altered in OSAS because edema and inflammation was remarkable in mild as well as severe stages of the disease. Furthermore, thinning in the macula was observed only in severe stages of the disease, explained with level of atrophy and exposure to extended hypoxia.Item Corneal endothelial damage in phacoemulsification using an anterior chamber maintainer compared with using an ophthalmic viscosurgical device(Lippincott Williams and Wilkins, 2021) Mayali H.; Baser E.F.; Kurt E.; Ilker S.S.Purpose: To compare the effects of phacoemulsification surgery (PE) using an anterior chamber maintainer (ACM) and conventional PE using an ophthalmic viscosurgical device (OVD) on corneal endothelial cells. Setting: Department of Ophthalmology, Celal Bayar University, Manisa, Turkey. Design: Prospective randomized controlled trial. Methods: Eyes in the OVD group (n = 50) underwent conventional PE, whereas eyes in the ACM group (n = 50) underwent PE using an ACM. Endothelial cell density (ECD), coefficient of variation (CV), hexagonality (HEX), and noncontact central corneal thickness (CCT) measurements were performed by specular microscopy before and at 1 month, 3 months, and 6 months after PE. Results: This study included 100 eyes of 97 patients undergoing PE. The mean age was 64.7 ± 10.6 years in the OVD group, 64.0 ± 12.6 years in the ACM group (P >.05). The groups did not differ significantly in preoperative ECD, CV, HEX, and CCT or total PE time (P >.05 for all). ECD was significantly lower in the ACM group compared with the OVD group at postoperative 1 month, 3 months, and 6 months (P =.002, P =.002, and P =.001, respectively). Similarly, ECD loss compared with preoperative value was greater in the ACM group at all postoperative timepoints (P =.003, P =.001, and P =.001, respectively). CV increased and HEX decreased in both groups postoperatively (P >.05 for both). CCT showed a transient increase of less than 10 m at postoperative 1 month in both groups (P =.296). Conclusions: PE with ACM was associated with greater corneal ECD loss compared with conventional PE. ACM should not be used during PE in patients with limited corneal endothelial reserve. © 2021 Elsevier Inc.. All rights reserved.Item Multimodal ocular evaluation in hemodialysis patients(Springer Science and Business Media B.V., 2021) Mayali H.; Altinisik M.; Sarigul C.; Toraman A.; Turkoglu M.S.; Kurt E.Purpose: To evaluate choroidal thickness, intraocular pressure (IOP), axial length, central corneal thickness (CCT), lens thickness, anterior chamber depth, and ocular pulse amplitude (OPA) in hemodialysis patients. Materials and methods: The patients with end-stage renal disease and undergoing hemodialysis were included in the study. Immediately before and 1 hour after hemodialysis, all patients underwent measurement of choroidal thickness with spectral domain optical coherence tomography (SD-OC, Cirrus HD-OCT; Carl Zeiss Meditec Inc., Dublin, CA), IOP and OPA with Pascal dynamic contour tonometry (Ziemer Ophthalmic Systems AG, Port, Switzerland), and anterior chamber depth, lens thickness, and axial length with optical biometry (LenStar LS900; Haag-Streit AG, Koeniz, Switzerland). Data from the patients’ right eyes were included in the statistical analysis. Results: The patient group included 8 (36.4%) males and 14 (63.6%) females with a mean age of 56, 14 ± 9, 96 (40–70) years. The mean subfoveal choroidal thickness before and after hemodialysis was 255.21 ± 6.15 (245–263) µm and 234.95 ± 7.89 (220–247) µm, respectively (p < 0.001). Mean choroidal thickness at 1500 µm and 3000 µm nasal and temporal of the fovea also decreased significantly after hemodialysis (p < 0.001). Mean OPA values before and after hemodialysis were 2.14 ± 1.07 (0.6–4) mmHg and 1.6 ± 0.86 (0.5–3.2) mmHg, respectively (p < 0.001). There was a statistically significant correlation between OPA and choroidal thickness measurements (p < 0.001, R = 0.923). IOP increased from 15.11 ± 2.58 (11–20) to 15.99 ± 2.21 (13–20) mmHg, but the change did not reach statistical significance (p = 0.05). There was no statistically significant change in mean axial length, anterior chamber depth, lens thickness, or CCT after hemodialysis (p > 0.05 for all). Conclusion: Although choroidal thickness and OPA may be decreased immediately after hemodialysis, there may be no significant changes in IOP or avascular ocular structures such as the lens and cornea. © 2021, The Author(s), under exclusive licence to Springer Nature B.V.Item Comparison of central corneal thickness measurements by contact and non-contact pachymetry devices(Jaypee Brothers Medical Publishers (P) Ltd, 2021) Mayali H.; Altinisik M.; Diri I.; Ilker S.; Kurt E.; Kayikcioglu O.Aim and objective: To compare central corneal thickness (CCT) measurements obtained by handheld contact ultrasound pachymetry (HCUP) and non-contact pachymetry devices. Materials and methods: Ninety eyes of 90 patients (52 male and 38 female) were included in the study. Measurements from two non-contact devices, —specular microscopy (SM, Konan Medical, CA, USA) and Oculus Pentacam (Oculus Inc., Germany)—were compared against HCUP (Pachmate 2, DGH Technology, Inc, PA, USA). Ultrasound measurements were obtained 3 times by the same user and averaged. The differences were calculated by one-way ANOVA. Agreement between measurements were assessed by Bland–Altman plots and intraclass correlation coefficient tests. Coefficient of repeatability (%, CR) was defined as 1.96*standard deviations of the differences between pairs of measurements divided by the average of the means. Results: The mean age was 34.31 ± 14.39 (14–74) years, and the mean intraocular pressure was 16.48 ± 2.63 mm Hg (12–21). Mean CCT measured by HCUP, SM, and Pentacam was 557.76 ± 36.76 μm, 550.29 ± 43.74 μm, and 541.41 ± 35.7 μm, respectively (p < 0.05). In the Bland–Altman plot, 95% limit of agreements were 19.5 and 14.18 μm among HCUP measurements, 34.55 μm between HCUP and Pentacam, 41.49 μm between SM and Pentacam, and 46.98 μm between HCUP and SM. CR values (%) were 3.49, 2.54, 6.28, 7.68, and 8.47, respectively. Conclusion: There were significant differences between the mean CCT values of the measurement devices. Clinical significance: Contact and non-contact devices may not interchangeable in the clinical assessment of CCT. © Jaypee Brothers Medical Publishers. 2021 Open Access.Item Evaluation of the visual system with visual evoked potential and optical coherence tomography in patients with idiopathic Parkinson's disease and with multiple system atrophy(Springer Science and Business Media Deutschland GmbH, 2022) Batum M.; Ak A.K.; Arı M.S.; Mayali H.; Kurt E.; Selçuki D.Background: In addition to motor findings, non-motor findings including alterations in visual acuity, decrease in blink reflex, and pupil reactivity cause the impaired quality of life in idiopathic Parkinson’s disease (PD) and multiple system atrophy (MSA). Our study aimed to examine possible latency and amplitude changes in pattern visual evoked potentials (pVEP) along with retinal and macular changes in optical coherence tomography (OCT) in PD and MSA groups. We also intended to investigate whether any OCT parameters could be a biomarker for Parkinson's or MSA. Methods: Our study included 50 patients with PD, 15 with MSA, and 50 healthy control subjects. All patients in the study underwent neurological and ophthalmological examination and investigations of OCT to measure the retinal and macular thickness and pVEP to assess visual pathways. Results: When PD, MSA, and control groups were compared, a significant difference was found in all retinal thickness values in average, nasal, and superior retinal nerve fiber thickness (pRNFL), and in all macular thickness values except nasal outer and inferior outer quadrants and in ganglion cell complex (GCC) thicknesses (p < 0.05). Moreover, a significant difference was found in N75, P100, and N145 latencies and N75-P100 amplitude (p < 0.05). The thickness of both pRNFL, inner and outer macular quadrants, was thinner in the MSA group than in PD but GCC thickness was thinner in PD group. Conclusions: The present study compared pVEP and OCT parameters in PD and MSA groups. It was concluded that pVEP and OCT examinations were of importance in that they were easily accessible, affordable, noninvasive biomarkers that might be used in early periods and progression of the disease and in follow-up. © 2022, The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature.Item Quantitative analysis of early retinal vascular changes in type 2 diabetic patients without clinical retinopathy by optical coherence tomography angiography(Springer Science and Business Media B.V., 2022) Altinisik M.; Kahraman N.S.; Kurt E.; Mayali H.; Kayikcioglu O.Purpose: To investigate the quantitative differences in optical coherence tomography angiography (OCTA) data between type 2 diabetes patients without clinically detectable diabetic retinopathy (DR) and healthy subjects. Methods: Thirty-nine patients with type 2 diabetes without DR and 41 age- and sex-matched healthy controls were recruited. The vessel density and foveal avascular zone (FAZ) area in the superficial capillary plexus and deep capillary plexus were measured using Nidek RS-3000 Advance® and compared between patient cohorts. Foveal vessel density (%) and FAZ (%) were also calculated. Results: A significant decrease in vessel density has been observed in the deep capillary plexus of the patients compared to healthy individuals (5.58 ± 0.98 mm2 versus 6.15 ± 0.89 mm2, p < 0.001). However, there were no significant differences in other parameters between cohorts (p > 0.05 in all parameters). Despite the decrease of deep capillary plexus density in the macular region, there was no significant change observed in foveal vessel density (p:0.44). It has also been observed that the duration of diabetes mellitus correlates with vessel density decrease in deep capillary plexus (R:–0.52; p < 0.001). In both groups, all parameters in deep capillary plexus were significantly higher than superficial capillary plexus (p < 0.001 for all parameters). Conclusions: OCTA can identify quantitative changes in DCP before the manifestation of clinically apparent retinopathy. DCP-VD reduction may be an earlier finding than FAZ enlargement. Despite the reduction of VD, FVD could be preserved for a certain period of time in DM patients. © 2022, The Author(s), under exclusive licence to Springer Nature B.V.Item Histopathological Results of Conjunctival Masses with Suspected Malignancy Based on Slit-lamp Biomicroscopy(College of Physicians and Surgeons Pakistan, 2023) Erdogan M.; Mayali H.; Malgaz S.; Altinisik M.; Ilker S.S.Objective: To evaluate the histopathological results of conjunctival masses suspected to be malignant based on biomicroscopic examination. Study Design: Observational study. Place and Duration of the Study: Department of Ophthalmology, Celal Bayar University, Hafsa Sultan Hospital, Manisa, Turkiye, from November 2013 to February 2021. Methodology: Patients who underwent excision for the diagnosis and treatment of conjunctival surface masses with clinical suspicion of malignancy were evaluated retrospectively. The masses were categorised as benign, premalignant, and malignant lesions according to the histopathological results. The distribution of conjunctival masses was analysed according to patients’ gender and age groups. Results: The study included 98 conjunctival masses in 98 patients (57.1% men, mean age 48.6±21.85 years). On pathological examination, 63 of the masses were found to be benign (64.3%), 22 were premalignant (22.4%), and 13 were malignant (13.3%). The most common benign lesion was nevus (n=21, 21.4%). All detected premalignant lesions were conjunctival intraepithelial neoplasms (CIN), detected in 22 patients (22.4%). Of these, 13 patients (13.3%) had carcinoma in situ (CIN III). Thirteen (13.3%) of the masses were malignant, the most common being squamous cell carcinoma (n=10, 10.2%). The frequency of premalignant and malignant lesions increased with age (p<0.001). There was no statistical relationship between malignancy and gender (p=0.619). Conclusion: Most conjunctival masses in this series were benign, with nevi being the most common. The most common premalignant and malignant lesions were intraepithelial neoplasia and squamous cell carcinoma, respectively. Malignant conjunctival lesions were more common in older patients. © 2023 College of Physicians and Surgeons Pakistan. All rights reserved.Item Shaken baby syndrome in an infant treated for retinopathy of prematurity with anti-VEGF injection(Elsevier Inc., 2023) Devebacak A.; Bekmez S.; Eris E.; Mayali H.; Yurtseven I.; Celik Y.; Bag O.We present the case of an infant who received bevacizumab treatment for retinopathy of prematurity (ROP) and developed retinal hemorrhages 12 weeks later. Although preretinal hemorrhages along the ROP's ridge were a concern for recurrence, we decided to investigate other etiologies because of numerous retinal hemorrhages in different retinal layers and their concentration in the posterior pole. Cranial magnetic resonance imaging revealed a new-onset subdural hemorrhage. Factors that were suspicious for trauma were identified in the detailed history taken from the family by the hospital's child abuse team. This case highlights the importance of considering the characteristics of retinal hemorrhages in infants with ROP and conducting any necessary investigation. © 2022 American Association for Pediatric Ophthalmology and StrabismusItem Clinical and Demographic Characteristics of Treatment Requiring Retinopathy of Prematurity in Big Premature Infants in Turkiye: Report No. 1 (BIG-ROP Study)(S. Karger AG, 2024) Özdek Å.; Ozdemir H.B.; Ozen Tunay Z.; Bayramoglu S.E.; Alyamac Sukgen E.; Klr N.; Koç E.; Ekinci D.Y.; Sayin N.; Ceylan N.A.; Cebeci Z.; Çelik G.; Kizilay O.; Demir S.T.; Yildiz M.; Öztürk T.; Bekmez S.; Eris E.; Çömez A.; Mayali H.; Kabatas E.U.; Satirtav G.; Ögreden T.; Vural A.; Onur I.U.; Yeter D.Y.; Gönc T.; Tanidir S.T.; Akdogan M.; Çelemler P.; Beyazyildiz E.; Beyazyildiz Ö.; Acar D.E.; Özbay E.K.; Özcan Y.; Keles S.; Yildirim M.; Uzun A.; Dikci S.; Sari A.; Kara C.; Petriçli I.S.; Comba Ö.B.S.; Albayrak S.; Ersan B.A.; Bilgin B.; Çeliker H.; Sahin O.; Seymen Z.; Alaluf A.; Kaymak N.Z.; Oral A.Y.; Kerimoglu H.; Ünsal A.I.A.; Hirfanoglu I.M.; Tayman C.; Mert M.K.; Çetinkaya M.; Karatekin G.; Uslu S.; Özkan H.; Tüzün F.; Yildirim T.G.; Yurttutan S.; Dinlen N.F.; Bezirganoglu H.; Altinhan H.; Salihoglu Ö.; Tun G.; Karakurt D.G.; Bas A.Y.; Demiroglu Ö.B.; Aygün C.; Tekgündüz K.S.; Ceylan M.; Özdemir R.; Zübahiroglu U.; Özkiraz S.; Cömert S.; Akcan A.B.Introduction: The aim of the study was to analyse the clinical and demographic features of infants with gestational age (GA) of 32-37 weeks and birth weight (BW) of >1,500 g who developed treatment requiring retinopathy of prematurity (ROP). Methods: Data on the infants with a GA of 32-37 weeks and BW >1,500 g who developed treatment requiring ROP (TR-ROP) were collected retrospectively from the 33 ROP centres in Turkiye. GA, BW, type of hospital, neonatal intensive care units (NICUs) level, presence of an ophthalmologist and neonatologist in the same hospital, length of stay in NICU, duration of oxygen therapy, comorbidities, type of ROP, and timing for TR-ROP development were analysed. Results: A total of366 infants were included in the study. Mean GA and BW were 33 1 weeks and 1,896 316 g, respectively. Duration of hospitalization was 3-4 weeks in 46.8% of them. The first ROP examination was performed at postnatal 4-5 weeks in 80.3% of infants, which was significantly later in level 2 and lower NICUs and non-university clinics. At the first ROP examination, any stage of ROP was detected in 90.9% and TR-ROP was detected in 15.3% of the infants. The mean postnatal week of TR-ROP development was 6.16 2.04. Conclusion: Routine ROP screening thresholds need to be expanded in hospitals with suboptimal NICU conditions considering the development of TRROP in more mature and heavier preterm infants. The first ROP examination should be earlier than the fourth postnatal week. 2024 S. Karger AG, Basel. © 2024 S. Karger AG. All rights reserved.Item The Effect of Diabetic Retinopathy and Blood Glucose Regulation on Corneal Biomechanical Parameters(Taylor and Francis Ltd., 2024) Sagaltici D.A.; Kurt E.; Seymenoglu R.G.; Mayali H.; Hekimsoy Z.Purpose: The aim of this study was to evaluate the effects of different stages of diabetic retinopathy (DR) and metabolic control of blood glucose levels on corneal biomechanical parameters. Methods: Diabetic patients were categorized into three groups: no DR group, nonproliferative DR (NPDR) group, and proliferative DR (PDR) group. Of the 141 eyes examined, 40 belonged to the control group, 34 to no DR group, 34 to NPDR group, and 33 to PDR group. Using an Ocular Response Analyzer to measure corneal hysteresis (CH), corneal resistance factor (CRF), Goldmann-correlated intraocular pressure (IOPg), and corneal-compensated IOP (IOPcc). IOP was assessed using a Tono-Pen, while central corneal thickness (CCT) was determined using an ultrasonic pachymeter. HbA1c levels were also recorded. We conducted comparisons among these groups across biomechanical parameters and IOP (tonopen), and CCT, while also investigating the impact of HbA1c levels on these parameters. Results: Among any groups show a statistically significant difference in CCT, IOP (tonopen), CH, CRF, IOPg, and IOPcc. In diabetic patients, CRF, CTT, and IOPg values were significantly higher in those with HbA1c levels ≥ 7 mg/dl than in those with HbA1c levels < 7 mg/dl (p = 0.009, p = 0.013, p = 0.038), respectively, while there was no statistically significant difference in IOPcc, CH, and IOP (tonopen). Linear regression analysis showed that CH was positively associated with CCT (p < 0.001) and negatively associated with IOPcc (p < 0.001), while CRF was positively associated with CCT (p < 0.001), HbA1c (p < 0.05), and negatively associated with diagnosis of DR (p < 0.05). Conclusion: This study underscores the influence of metabolic control, as reflected by HbA1c levels, on corneal biomechanical parameters in diabetic patients, emphasizing the importance of monitoring and managing glycemic control in this population. © 2024 Taylor & Francis Group, LLC.