Your browser doesn't support javascript.
loading
: 20 | 50 | 100
1 - 20 de 369
1.
Pediatr Dermatol ; 41(2): 243-246, 2024.
Article En | MEDLINE | ID: mdl-38413004

BACKGROUND: Idiopathic aseptic facial granuloma (IAFG) is an underrecognized pediatric skin disease, currently considered within the spectrum of rosacea. It usually manifests as a solitary, reddish, asymptomatic nodule on the cheek that resolves spontaneously. METHODS: Retrospective and descriptive observational study of 43 pediatric patients with a clinical diagnosis of IAFG, followed between 2004 and 2022, at two general hospitals in Argentina. RESULTS: IAFG predominated in girls (65%) and the average age of onset was about 6 years. A single asymptomatic nodule was seen in 79% of patients. The most common localization was the cheek (58%) followed by lower eyelids (41%). Family history of rosacea was present in 16% of patients. A concomitant diagnosis of rosacea and periorificial dermatitis was made in 14% and 9% of our population, respectively. Past or present history of chalazia was detected in 42% of the children. IAFG diagnosis was mainly clinical (88% of cases). Oral antibiotics were the most common indicated treatment (84%). Complete healing was achieved by the majority, but 18% of those with eyelid compromise healed with scars. CONCLUSIONS: IAFG is a benign pediatric condition that physicians should recognize in order to manage correctly. We herein refer to a particular morphologic aspect of IAFG lesions affecting the lower eyelids, where nodules adopt a linear distribution and have a higher probability of involute leaving a scar. Also, we consider that the concomitant findings of rosacea, periorificial dermatitis and chalazia in our patients, reinforce the consideration of IAFG within the spectrum of rosacea.


Chalazion , Connective Tissue Diseases , Dermatitis , Facial Dermatoses , Rosacea , Female , Humans , Child , Retrospective Studies , Chalazion/complications , Chalazion/diagnosis , Facial Dermatoses/diagnosis , Facial Dermatoses/drug therapy , Facial Dermatoses/pathology , Granuloma/diagnosis , Granuloma/drug therapy , Rosacea/diagnosis , Rosacea/drug therapy , Rosacea/epidemiology
2.
Arch. Soc. Esp. Oftalmol ; 99(2): 49-55, Feb. 2024. tab, ilus
Article Es | IBECS | ID: ibc-230165

Objetivo: Determinar la correlación entre la infestación por especies de Demodex y la ocurrencia de chalaziones primarios y recurrentes. Métodos: Estudio prospectivo y observacional. Se incluyeron pacientes con chalaziones primarios o recurrentes. Se tomó muestra de pestañas para determinar la presencia microscópica de Demodex spp. Se determinó la correlación entre la recurrencia del chalazión y la infestación por ácaros Demodex spp. mediante la prueba del coeficiente de correlación de rangos de Spearman. Resultados: Se incluyeron 68 pacientes adultos con diagnóstico de chalazión. En 63,2% del total de los casos se documentó la presencia de uno o más parásitos del género Demodex spp. En el estudio parasitológico cuantitativo se encontró que el 25% de todos los casos presentó infestación por Demodex spp. definida por un índice superior o igual a 0,5 parásitos por pestaña. La especie más frecuentemente encontrada fue Demodex folliculorum. De los 14 pacientes con chalazión recurrente el 50% presentó infestación por Demodex spp. y en el 91,7% de los casos la infestación fue por Demodex folliculorum. Existe una correlación positiva y directamente proporcional de (rø=+0,665; p<0,05) entre estos factores. De los pacientes con chalazión primario, solo 18,5% presentaron infestación por Demodex spp., y en el 81,6% de ellos fue causada por Demodex folliculorum. No existe una correlación significativa entre estos factores. Conclusión: Existe una correlación directa, alta y estadísticamente significativa entre la recurrencia del chalazión y la infestación por Demodex spp., no existe una correlación estadísticamente significativa entre los chalaziones primarios y la presencia de Demodex spp.(AU)


Objective: To determine the correlation between the infestation by species of Demodex spp. and the occurrence of primary and recurrent chalazia. Methods: Prospective and observational study. Patients with primary or recurrent chalazia were included. Eyelash samples were taken to determine the microscopic presence of Demodex spp. The correlation between the recurrence of the chalazia and the infestation by Demodex spp. mites was determined using Spearman's rank correlation coefficient test. Results: Sixty-eight adult patients diagnosed with chalazia were included. In 63.2% of the total cases, the presence of one or more parasites of the genus Demodex spp. was documented. In the quantitative parasitological study, it was found that 25% of all cases presented infestation by Demodex spp. defined by an index greater than or equal to 0.5 parasites per eyelash. The most frequently found species was Demodex folliculorum. Of the 14 patients with recurrent chalazia, 50% presented infestation by Demodex spp. and in 91.7% of the cases the infestation was by D. folliculorum. There is a positive, directly proportional correlation between these factors (rθ=+0.665, P<.05). In the group of patients with primary chalazion, only 18.5% presented infestation by Demodex spp., and in 81.6% of these cases it was caused by D. folliculorum. There is a non-statistically significant correlation between these two factors. Conclusion: There is a direct, high and statistically significant correlation between the recurrence of the chalazion and the infestation by Demodex spp., there is no statistically significant correlation between the primary chalazia and the presence of Demodex spp.(AU)


Humans , Male , Female , Adult , Hordeolum/drug therapy , Blepharitis , Chalazion/diagnosis , Mites , Eye Infections , Ophthalmology , Prospective Studies , Correlation of Data , Eye/microbiology
3.
Sci Rep ; 14(1): 3645, 2024 02 13.
Article En | MEDLINE | ID: mdl-38351249

This study aims to investigate the effectiveness of Intense Pulsed Light (IPL) therapy for chalazion treatment while also exploring potential variations in sensitivity among different types of chalazion. A total of 149 patients were selected to receive tobramycin combined with IPL treatment and tobramycin combined with hot compress. The treatment groups were divided into cystic type and granulomatous type according to different clinical manifestations. The course of treatment was 3 weeks. The improvement was based on the ultrasound measurement of the masses reduction of more than 50% or disappearance. In the IPL group, 17 (22.67%) cases were cured, 39 (52.00%) were effective, and 19 (25.33%) were ineffective. This includes: cystic type was cured in 3 (15.79%), effective in 5 (26.32%) cases, ineffective in 11 (57.89%) cases; granulomatous type was cured in 14 (25.00%) cases, effective in 34 (60.71%) cases, ineffective in 8 (14.29%) cases. In the hot compress group, 5 (6.76%) cases were cured, 16 (21.62%) cases were effective and 53 (71.62%) cases were ineffective. The cystic type was cured in 2 (8.00%) cases, effective in 3 (12.00%) cases and ineffective in 20 (80.00%) cases; the granulomatous type was cured in 3 (6.12%) cases, effective in 13 (26.53%) cases and ineffective in 33 (67.35%) cases. The cure rate and efficacy rate of IPL treatment is higher than that of hot compress treatment, the treatment effect of IPL treatment on granulomatous chalazion is better than that on cystic type.


Chalazion , Intense Pulsed Light Therapy , Low-Level Light Therapy , Child , Humans , Chalazion/therapy , Tobramycin
4.
BMC Ophthalmol ; 24(1): 1, 2024 Jan 02.
Article En | MEDLINE | ID: mdl-38166705

BACKGROUND: Angiosarcoma is an extremely rare malignant tumor. So far, only about 42 cases of angiosarcoma involving the eyelids have been reported. Eyelid angiosarcoma occurs more frequently in elderly Caucasian males and is prone to misdiagnosis. We present a case report in a young Asian male patient with eyelid angiosarcoma that was misdiagnosed as a chalazion. CASE PRESENTATION: A 46-year-old South Korean male with no underlying disease had a right lower lid mass. The lesion was initially misdiagnosed as a chalazion at a local clinic, but a diagnosis of eyelid angiosarcoma was made after the first biopsy trial. PET-CT was performed to ensure that there was no metastasis in the whole body. Surgical excision with enough surgical margin was used alone for treatment and reconstruction was performed with a tarsoconjunctival advancement flap (modified Hughes procedure), which helped ensure good cosmesis. No recurrence was observed 4 years and 5 months after the surgery. CONCLUSIONS: The current study presents the first case of chalazion-mimicked eyelid angiosarcoma in a young Asian male aged under 50 years. This case shows that even if a benign eyelid disease is suspected in a young patient, an incisional biopsy must be performed to confirm whether the lesion is malignant. Since the prognosis is good for the case of eyelid angiosarcoma, if there is no clear evidence of distal metastasis, surgical resection should be performed with an enough safety margin.


Chalazion , Eyelid Neoplasms , Hemangiosarcoma , Aged , Male , Humans , Middle Aged , Chalazion/diagnosis , Eyelid Neoplasms/diagnosis , Eyelid Neoplasms/surgery , Eyelid Neoplasms/pathology , Hemangiosarcoma/diagnosis , Hemangiosarcoma/surgery , Hemangiosarcoma/pathology , Positron Emission Tomography Computed Tomography , Eyelids/surgery , Eyelids/pathology
5.
Ophthalmic Epidemiol ; 31(1): 84-90, 2024 Feb.
Article En | MEDLINE | ID: mdl-37032590

PURPOSE: To identify factors associated with chalazion diagnosis and surgical excision. METHODS: Patients with an incident chalazion diagnosis from 2002 to 2019 were compared 1:5 with matched controls. Multivariable logistic regression was performed to identify variables associated with diagnosis and surgical excision. RESULTS: Chalazion patients (n = 134,959) and controls (678,160) were analyzed. Risk factors for diagnosis included female sex, non-white race, northeast location, conditions affecting periocular skin and tear film (blepharitis, meibomian gland dysfunction, rosacea, pterygium), non-ocular inflammatory conditions (gastritis, inflammatory bowel disease, sarcoidosis, seborrheic dermatitis, Graves' disease), and smoking (p < .001 for all comparisons). Thirteen percent of patients with chalazion underwent subsequent surgical excision. Diabetes and systemic sclerosis diagnoses decreased odds of diagnosis (p < .001). Male sex, rosacea diagnosis, Black and Hispanic race, antibiotic use, and doxycycline use increased odds of surgery (p < .001). CONCLUSION: Female sex, non-white race, conditions affecting periocular skin and the tear film, several non-ocular inflammatory conditions, and smoking were risk factors for chalazion diagnosis. Male sex, rosacea diagnosis, Black and Hispanic race, antibiotic use, and doxycycline use were risk factors for surgical intervention for chalazion. Our results prompt further study of these variables and their relationship to chalazion diagnosis to understand physiology and improve clinical outcomes. Furthermore, the results of this study suggest early recognition and treatment of concomitant rosacea may serve an important role in the management of chalazion and in the prevention of surgical intervention.


Chalazion , Rosacea , Humans , Male , Female , Chalazion/diagnosis , Chalazion/epidemiology , Chalazion/surgery , Doxycycline/therapeutic use , Anti-Bacterial Agents/therapeutic use , Risk Factors , Rosacea/diagnosis , Rosacea/epidemiology , Rosacea/surgery
6.
Graefes Arch Clin Exp Ophthalmol ; 262(4): 1329-1335, 2024 Apr.
Article En | MEDLINE | ID: mdl-37934292

PURPOSE: To evaluate immunophenotypic profiles of infiltrating cells in surgically excised tissues of chalazion and pyogenic granuloma associated with chalazion. METHODS: Eighty-two surgical specimens from 74 consecutive patients newly diagnosed with chalazion or chalazion-associated pyogenic granuloma at Tokyo Medical University Hospital between 2016 and 2022 were studied. Sixty specimens were chalazion lesions and 22 specimens were pyogenic granuloma lesions (from 15 men and 7 women, mean age 36.6 ± 14.4 years). All patients were immunocompetent Asian Japanese adults. Specimens were analyzed by immunohistochemistry and flow cytometry. Flow cytometry was performed using the following antibodies: CD3, CD4, CD8, CD11b, CD11c, CD16, CD19, CD20, CD23, CD25, CD34, CD44, CD56, CD69, and CD138. RESULTS: In flow cytometric analysis, the proportion of cells expressing the T cell marker CD3 was significantly higher compared with other immune cells expressing specific markers (p < 0.0001), and the proportion of CD4-positive T cells was significantly higher than that of CD8-positive T cells (p < 0.0001), in both chalazion and pyogenic granuloma specimens. The chalazion and pyogenic granuloma lesions shared similar immunophenotypic profile characterized by predominant T cell infiltration, and CD4 T cells dominating over CD8 cells. The pattern of expression of CD4 and CD8 in the specimens was confirmed by immunohistochemistry. CONCLUSION: The present study demonstrates immunophenotypic features of chalazion and chalazion-associated pyogenic granuloma. Although various inflammatory cells are involved in the pathology of chalazion and pyogenic granuloma, a significantly higher proportion of CD4-positive T cells may be closely related to the pathological mechanisms of both lesions.


Chalazion , Granuloma, Pyogenic , Male , Adult , Humans , Female , Young Adult , Middle Aged , Chalazion/metabolism , Granuloma, Pyogenic/diagnosis , Granuloma, Pyogenic/metabolism , Granuloma, Pyogenic/pathology , Immunophenotyping , CD4-Positive T-Lymphocytes/metabolism , CD4-Positive T-Lymphocytes/pathology , CD8-Positive T-Lymphocytes/metabolism , CD8-Positive T-Lymphocytes/pathology , Flow Cytometry
7.
Eur J Ophthalmol ; 34(2): 594-597, 2024 Mar.
Article En | MEDLINE | ID: mdl-38013412

PURPOSE: Reconstruction after eyelid lesion excision is very important. It calls for preserving normal eyelid function for the protection of the eye and restoring good cosmesis. It is important to precisely align the tarsal plate. However, the unique anatomy of eyelids often makes haemostasis difficult and surgical field obscured. We report an effective method to solve this problem. METHOD: This retrospective study included 25 patients who underwent eyelid margin lesion excision using the chalazion clamp between March 2020 and October 2021. The chalazion clamp is placed on the desired location and tightened, providing a bloodless field for eyelid lesion removal. Without bleeding, visibility of the cut edges is improved considerably. It facilitates anatomical anastomosis of the tarsal plate. RESULTS: All 25 patients maintained normal eyelid function and good cosmesis, with no recurrence during the follow-up period. CONCLUSION: The use of the chalazion clamp during excision of the eyelid margin lesion could stabilize the eyelid, protect the eyeball from accidental injury and, and provide a clear bloodless operative field. It can ensure the neatness of the cut edges and offer better incision alignment for suture. It also avoids wasting too much time on haemostasis, without additional expensive equipment.


Chalazion , Humans , Chalazion/surgery , Chalazion/pathology , Retrospective Studies , Eyelids/surgery , Eyelids/pathology , Sutures
8.
Arch Soc Esp Oftalmol (Engl Ed) ; 99(2): 49-55, 2024 Feb.
Article En | MEDLINE | ID: mdl-38008381

OBJECTIVE: To determine the correlation between the infestation by species of Demodex spp. and the occurrence of primary and recurrent chalazia. METHODS: Prospective and observational study. Patients with primary or recurrent chalazia were included. Eyelash samples were taken to determine the microscopic presence of Demodex spp. The correlation between the recurrence of the chalazia and the infestation by Demodex spp. mites was determined using Spearman's rank correlation coefficient test. RESULTS: Sixty-eight adult patients diagnosed with chalazia were included. In 63.2% of the total cases, the presence of one or more parasites of the genus Demodex spp. was documented. In the quantitative parasitological study, it was found that 25% of all cases presented infestation by Demodex spp. defined by an index greater than or equal to 0.5 parasites per eyelash. The most frequently found species was Demodex folliculorum. Of the 14 patients with recurrent chalazia, 50% presented infestation by Demodex spp. and in 91.7% of the cases the infestation was by D. folliculorum. There is a positive, directly proportional correlation between these factors (rθ=+0.665, P<.05). In the group of patients with primary chalazion, only 18.5% presented infestation by Demodex spp., and in 81.6% of these cases it was caused by D. folliculorum. There is a non-statistically significant correlation between these two factors. CONCLUSION: There is a direct, high and statistically significant correlation between the recurrence of the chalazion and the infestation by Demodex spp., there is no statistically significant correlation between the primary chalazia and the presence of Demodex spp.


Blepharitis , Chalazion , Mite Infestations , Mites , Adult , Animals , Humans , Chalazion/diagnosis , Blepharitis/diagnosis , Mite Infestations/epidemiology , Mite Infestations/diagnosis , Prospective Studies
9.
Curr Eye Res ; 49(2): 109-118, 2024 Feb.
Article En | MEDLINE | ID: mdl-37937798

A chalazion is one of the most common eye conditions presenting as a mass lesion of the eyelids. It is seen in all age groups. Chalazion is a non-inflammatory process and develops due to retained secretion of the meibomian or Zeis glands. Treatment of choice differs among clinicians and may include application of warm compress onto eyelids, lid hygiene, using local antibiotic ointment with or without steroids, injecting steroid solution (triamcinolone acetonide) into the lesion and surgical removal of the lesion by incision and curettage. In addition, there are some other experimented methods such as injection of botulinum toxin A, tarsal trephination, removal of chalazion by application of CO2 laser or cryogenic action. However, there is currently no commonly agreed treatment of choice. In this review, we aimed to summarize findings from clinical trials and hopefully, identify a treatment of choice in chalazion.


Chalazion , Humans , Chalazion/drug therapy , Chalazion/pathology , Glucocorticoids , Injections, Intralesional , Triamcinolone Acetonide/therapeutic use , Eyelids/surgery , Eyelids/pathology
10.
Clin Ter ; 174(5): 390-394, 2023.
Article En | MEDLINE | ID: mdl-37674447

Abstract: A few cases of ocular adnexal neoformations related with MCL have been reported in the literature. We present a rare case of tumour duplicity: mantle cell lymphomas (MCL) associated with squamous cell carcinoma (SCC) localised at the level of the ocular adnexa, on left upper eye lid mass since two years of 18 mounth duration in a 57-year-old man who had previously been diagnosed with stage IV MCL for 14 months. The patient had been treated according to the R-DHAP scheme for 4 cycles, in anticipation of a possible autologous HSC transplant, which was not carried out due to a positive diagnosis at the end-of-cycle osteomedullary biopsy (BOM) check. Ophthalmological examination was performed, and afther surgical removal histological examination proved to be squamous cell carcinoma (SCC). The aim of this case report is to decode the signs, symptoms and factors associated with the formation, that appear to be a chalazion, at an early stage in order to prevent the overgrowth of the mass that could invade the surrounding tissues by infiltrating them, as well as negative aesthetic outcomes of the surgery due to the excessive size of the mass, which could compromise the patient's quality of life.


Carcinoma, Squamous Cell , Chalazion , Lymphoma, Mantle-Cell , Male , Adult , Humans , Middle Aged , Lymphoma, Mantle-Cell/complications , Lymphoma, Mantle-Cell/diagnosis , Lymphoma, Mantle-Cell/pathology , Quality of Life , Carcinoma, Squamous Cell/complications , Carcinoma, Squamous Cell/surgery
12.
Indian J Ophthalmol ; 71(8): 2959-2961, 2023 08.
Article En | MEDLINE | ID: mdl-37530264

Purpose: To evaluate the effect of extralesional triamcinolone acetonide (TA) injection in the treatment of small chalazion (diameter ≤ 5 mm). Methods: Prospective interventional clinal study that included patients diagnosed as chalazion of small size not responding to conservative management for at least 2 weeks. All patients were treated with extralesional TA injection (4 mg). Successful resolution of a chalazion was defined as a decrease in size to 1 mm or smaller. Results: Thirty-eight patients were included in the study. The resolution was achieved in 33 (87%) patients. Nineteen (50%) patients had complete resolution after the first injection, and 13 (34.2%) patients had complete resolution after the second injection. Chalazion near the lower punctum needed more times of injections than those elsewhere (P = 0.02). Conclusions: Extralesional TA injection is effective in the treatment of both primary and recurred small chalazia. It is a simple and cost-saving procedure and can be considered an alternative first-line treatment for small chalazion.


Chalazion , Triamcinolone Acetonide , Humans , Chalazion/diagnosis , Chalazion/drug therapy , Glucocorticoids , Prospective Studies , Neoplasm Recurrence, Local
13.
Arch Pediatr ; 30(6): 396-400, 2023 Aug.
Article En | MEDLINE | ID: mdl-37394362

INTRODUCTION: Epidemiological data on the use of eye-related emergency services by children are limited. The objective of this study was to determine how COVID-19 affected the epidemiological trends of pediatric ocular emergencies. METHODS: We performed a retrospective chart review of children under the age of 18 years who visited our eye-related emergency department between March 17 and June 7, 2020 and between March 18 and June 9, 2019. This was a descriptive and comparative analysis of the two study periods based on the demographic characteristics of patients and the diagnosis reported by the ophthalmologist in the digital medical charts. One of the investigators performed a second reading of the files to homogenize the diagnosis classification based on the most frequently found items. RESULTS: In total, 754 children were seen in our eye-related emergency department during the 2020 study period versus 1399 in 2019, representing a 46% decrease. In 2019, the four main diagnoses were traumatic injury (30%), allergic conjunctivitis (15%), infectious conjunctivitis (12%), and chalazion/blepharitis (12%). In the 2020 study period there was a significant decrease in the proportion of patients presenting with traumatic injuries (p < 0.001), infectious conjunctivitis (p = 0.03), and chalazion/blepharitis (p < 0.001). Consultations for chalazion/blepharitis were the most affected by the pandemic, followed by traumatic injuries (-72% and -64%, respectively). The proportion of patients who required surgery after trauma was higher in 2020 than in 2019 (p < 0.01), but the absolute number of severe trauma cases remained stable. CONCLUSIONS: The COVID-19 pandemic was accompanied by a decrease in the overall use of a pediatric eye-related emergency services in Paris. Visits due to benign causes and ocular trauma also decreased, but visits for more severe pathologies were not affected. Longer-term epidemiological studies may confirm or refute a change in eye emergency department use habits.


Blepharitis , COVID-19 , Chalazion , Conjunctivitis , Child , Humans , Adolescent , Retrospective Studies , Paris/epidemiology , Emergencies , Pandemics , COVID-19/epidemiology , Emergency Service, Hospital , Conjunctivitis/epidemiology
14.
Sci Rep ; 13(1): 12393, 2023 07 31.
Article En | MEDLINE | ID: mdl-37524772

We assessed the effectiveness of light-guided-tip intense pulsed light (IPL) with meibomian gland expression (MGX) in chalazion treatment. Ninety-five eyes with chalazion received a light-guided-tip IPL-MGX treatment (IPL-MGX group), and another 95 eyes with chalazion received incision with curettage treatment (Control group). Prior to IPL or incision, as well as 1 month after the final treatment, data were gathered pertaining to the lesion location and size, hyperemia, lesions regression or recurrence, and a comprehensive ophthalmic examination. The total size of the chalazia in the IPL-MGX group was significantly reduced after the final treatment, with an average resolution rate of 70.5%, which is comparable to excision surgery. A significant decrease in chalazion recurrence rate was apparent after treatment in the IPL-MGX group compared with control. Moreover, the IPL-MGX demonstrated significant advancements throughout noninvasive tear film breakup time (NIBUT) as well as meibum grade in comparison to baseline and those in the the Control group. The use of IPL-MGX was found to be an efficient therapy for reducing the size and recurring frequency of chalazia, as well as for improving the meibomian gland function. It may be considered as a first-line treatment for cases of primary or recurrent chalazia with inflammation.


Ascomycota , Chalazion , Dry Eye Syndromes , Intense Pulsed Light Therapy , Humans , Chalazion/therapy , Chalazion/metabolism , Meibomian Glands/metabolism , Phototherapy , Tears/metabolism , Dry Eye Syndromes/metabolism
15.
J AAPOS ; 27(4): 213-216, 2023 08.
Article En | MEDLINE | ID: mdl-37302727

Chalazia in pediatric patients are often treated with topical antibiotics or steroids, although no strong evidence supports their use. This retrospective review of pediatric patients with chalazia did not find a decreased odds of undergoing procedural treatment (incision and curettage and/or intralesional steroid injection) with initial topical antibiotics and/or steroids compared to conservative measures. Inflamed chalazia may benefit from topical treatment, but small sample size limits this subgroup analysis. Shorter pre-topical treatment chalazion duration correlated with a lower risk of procedural intervention. Regimens that included steroids were not found to be more effective than topical antibiotics alone.


Chalazion , Glucocorticoids , Humans , Child , Glucocorticoids/therapeutic use , Chalazion/drug therapy , Treatment Outcome , Anti-Bacterial Agents/therapeutic use , Injections, Intralesional
20.
Int Ophthalmol ; 43(4): 1249-1259, 2023 Apr.
Article En | MEDLINE | ID: mdl-36255613

PURPOSE: Demodex folliculorum and Demodex brevis are common ectoparasites on skin that also can lead to blepharitis and chalazion. The aim of our study is to determine the prevalence of Demodex spp. in eyelashes of patients diagnosed with chronic blepharitis and chalazion. METHODS: This study included 330 patients diagnosed with chronic blepharitis, 70 patients diagnosed with chalazion and 130 volunteers without any ocular problems. Patient eyelashes were examined under a light microscope at magnifications of × 40, × 100 and × 400. Demodex spp. were determined. RESULTS: Parasite prevalence was significantly higher in blepharitis (75.5%) and chalazion groups (70%) compared to the control group (16.2%) (p < 0.001). The prevalence of D. folliculorum in the blepharitis group and D. brevis in the chalazion group was found to be significantly higher compared to other groups (p < 0.05). The average number of mites per eyelash was found to be significantly higher in patients with Demodex positive blepharitis (p = 0.001) and in chalazion patients (p = 0.047) than in the control group. It has been determined that mite positivity increases with age in blepharitis and control groups (p < 0.05). In the group with blepharitis, it was found that mite positivity was significant in the presence of symptoms (p = 0.0001) and Demodex positivity decreased as the education level of individuals increased (p = 0.039). CONCLUSION: The results of the study show that Demodex spp infestations should be considered in chronic blepharitis and chalazion.


Ascomycota , Blepharitis , Chalazion , Eye Infections, Parasitic , Eyelashes , Mite Infestations , Mites , Animals , Humans , Chalazion/epidemiology , Mite Infestations/epidemiology , Mite Infestations/parasitology , Prevalence , Blepharitis/epidemiology , Blepharitis/parasitology , Eyelashes/parasitology , Chronic Disease , Eye Infections, Parasitic/diagnosis , Eye Infections, Parasitic/epidemiology
...