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PubMed1992

Evaluation of tear protein deposits on contact lenses from patients with and without giant papillary conjunctivitis.

Giant papillary conjunctivitis (GPC) associated with contact lens wear is believed to result from an irritative or allergic response to accumulated lens surface deposits. In a masked study, contact lenses worn short-term (2 weeks or less) or long-term (2-12 months), and obtained from patients with and without active GPC, were examined for deposited proteins: IgA, IgE, IgG, IgM, lactoferrin, and lysozyme. Using immunohistochemical methods lenses were separately graded on a 4+ scale for extent of protein coverage. All lenses showed substantial deposits (averaging 50-75% lens coverage) of the normal tear proteins, with the exception of IgE which averaged less than 25% lens coverage; maximum protein deposition was apparent on lenses worn for only 3 days. Both symptomatic and asymptomatic persons deposited similar amounts of the common tear proteins on their contact lenses, with the exception of IgM. A statistically significant increase in IgM deposition was found when the short-term GPC lenses were compared to short-term asymptomatic lenses. Our data suggest that the development of GPC does not depend on amount of deposition of the normal tear proteins IgA, IgG, IgE, lactoferrin or lysozyme. Differences observed in IgM deposition may reflect an immune response in GPC.

Conjunctivitis, Allergic↗
PubMed1992

Giant papillary conjunctivitis and meibomian gland dysfunction blepharitis.

In this prospective pilot study we saw 42 consecutive giant papillary conjunctivitis (GPC) patients (80 eyes), all of whom were found to have some meibomian gland dysfunction blepharitis. Severity of GPC at presentation correlated with severity of meibomian gland dysfunction blepharitis (Kendall's tau b averaged 0.246 across the adjusted statistical analyses). Thirty-two patients (63 eyes) were refit after treating meibomian gland dysfunction blepharitis. Twenty-eight of these patients (55 eyes; 87%) continue to wear contact lenses, maintaining an improvement in GPC (mean follow-up 21 months; range 11-36 months). We hypothesize that meibomian gland dysfunction blepharitis may play a role in the pathogenesis of GPC and suggest that a large, controlled, multi-observer study be performed to further investigate this possible association.

Adolescent↗
PubMed2003

Acute hemorrhagic conjunctivitis epidemic--2003 in Nepal.

This rapid communication present the findings of nationwide outbreak of acute hemorrhagic conjunctivitis (AHC) epidemic occurred in Nepal during summer 2003. Only ten percent of samples showed bacterial and no fungus were grown. On the contrary, viruses were detected in 60.0% cases studied. Of the viruses detected, Adenovirus (ADV), Coxsackie virus (CA24v) and both accounted for 83.3% (30/36), 11.1% (4/36) and 5.5% (2/36), respectively. Interestingly, ADV was detected also from one of the ten a Rupees bill.

Adenovirus Infections, Human↗
PubMed2000

Meibomian gland status and prevalence of giant papillary conjunctivitis in contact lens wearers.

PURPOSE: The purpose of this study was to determine the clinical prevalence of Meibomian gland dysfunction (MGD) and giant papillary conjunctivitis (GPC) in an active contact lens wearing population. METHODS: One examiner observed 105 consecutive adapted contact lens patients over a 3-month period at a stateside USAF Regional Hospital Optometry Clinic. All eyes were graded for MGD and for GPC as described in the literature. RESULTS: Twenty-three patients were identified as having MGD. No patients had Meibomianitis and no patients in the study had GPC. CONCLUSION: Although a relationship between MGD and GPC has found its way into the ophthalmic literature, this study population reveals no relationship existent between these conditions in healthy and successful contact lens-wearing patients.

Adolescent↗
PubMedDate not supplied

Prevalence of trachoma in chronic conjunctivitis, Birjand, Islamic Republic of Iran.

Between January 1999 and December 2000, 80 consecutive patients with chronic conjunctivitis presenting in the eye clinic of Birjand University of Medical Sciences were assessed for trachoma and chlamydial infection. Direct fluorescent antibody test was used to assess trachoma and Giemsa staining to detect chlamydial infection. Trachoma was detected in 10% of the patients and chlamydial infection detected in 6.3%. The results were similar for both sexes. Although the findings are hospital-based, the prevalence was not so high as to suggest prophylactic use of azithromycin (World Health Organization protocol) for eradication of trachoma in the Birjand population. Further epidemiological studies are recommended.

Adolescent↗
PubMed1992

Treatment of giant papillary conjunctivitis with cromolyn sodium.

We evaluated the efficacy of cromolyn sodium in the management of contact lens patients with GPC. Fourteen of 20 patients (70%) with moderate to severe giant papillary conjunctivitis (GPC) were able to continue wearing contact lenses with the use of 4% sodium cromolyn eye drops. These patients had all failed to stay symptom free with our standard method of treatment (i.e., discontinuing contact lens wear for 1-2 weeks; improving lens care; and refitting with different lens designs and/or polymers). This study examined the indications, therapeutic regimen, complications, and patient response to the use of sodium cromolyn in contact lens patients with GPC.

Adult↗
PubMed2004

[The prevalence of allergic rhinitis and conjunctivitis in school children from Kraków and Poznań--ISAAC study (International Study of Asthma and Allergies in Childhood)].

BACKGROUND: The aim of study was to assess the prevalence of symptoms and diagnosis of allergic rhinitis (AR) and allergic rhinitis and conjunctivitis (ARC) in school children in 1994/95 and 2001/02. METHODOLOGY: Standardized ISAAC questionnaire was used for assessment population of school children 6-7 yrs of age and 13-14 yrs of age in Kraków and Poznań. RESULTS: The prevalence of AR ever symptoms increased significantly in group 6-7 yrs of age from 28.5% to 33.6% in Kraków and from 13.0% to 31.3% in Poznań. The similar rise was found in group 13-14 yrs of age in Kraków from 26.1% to 41.1%, in Poznań from 19.0% to 39.6%. In both age groups and both centers the number of children with established AR diagnosis increased: in group 6-7 yrs of age in Kraków from 15.3% to 21.1%, in Poznań from 5.0% to 19.5%; in group 13-14 yrs of age in Kraków from 19.7% to 29.9%, in Poznań from 12.0% to 32.6%. Analysis of AR and ARC current symptoms (in the last year) confirmed significant increasing prevalence in both age groups, too. CONCLUSION: The prevalence of AR and ARC diagnosis and symptoms increased significantly during last 7 years.

Adolescent↗
PubMed2005

Slime-producing Staphylococcus epidermidis and S. aureus in acute bacterial conjunctivitis in soft contact lens wearers.

In recent years, an increase in ocular pathologies related to soft contact lens has been observed. The most common infectious agents were Staphylococcus spp. Some strains produce an extracellular polysaccharidic slime that can cause severe infections. Polysaccharide synthesis is under genetic control and involves a specific intercellular adhesion (ica) locus, in particular, icaA and icaD genes. Conjunctival swabs from 97 patients with presumably bacterial bilateral conjunctivitis, wearers of soft contact lenses were examined. We determined the ability of staphylococci to produce slime, relating it to the presence of icaA and icaD genes. We also investigated the antibiotic susceptibility and Pulsed Field Gel Electrophoresis (PFGE) patterns of the clinical isolates. We found that 74.1% of the S. epidermidis strains and 61.1% of the S. aureus strains isolated were slime producers and showed icaA and icaD genes. Both S. epidermidis and S. aureus slime-producing strains exhibited more surface hydrophobicity than non-producing slime strains. The PFGE patterns overlapped in S. epidermidis strains with high hydrophobicity. The similar PFGE patterns were not related to biofilm production. We found scarce matching among the Staphylococcus spp. studied, slime production, surface hydrophobicity and antibiotic susceptibility.

Adolescent↗
PubMed2006

Role of VLA-4 in the development of allergic conjunctivitis in mice.

PURPOSE: The severity of allergic conjunctivitis (AC) correlates with the degree of eosinophil infiltration into the conjunctiva, which is believed to be mediated by chemokines and adhesion molecules. The adhesion molecule very late antigen (VLA)-4 and its ligand, vascular cell adhesion molecule (VCAM)-1, are known to play important roles in eosinophil infiltration. However, the expression and function of VLA-4 in AC have not been investigated in detail. We sought to characterize VLA-4-expressing cells in the conjunctivas of mice that are developing experimental AC (EC) and to determine whether the interaction between VLA-4 and VCAM-1 is needed for the infiltration of eosinophils into the conjunctiva in AC. METHODS: EC was induced in Balb/c mice by active immunization with ragweed (RW) or adoptive transfer of RW-primed splenocytes, followed by RW challenge. Twenty-four hours after RW challenge, the conjunctivas were harvested. The conjunctivas from naive mice or mice developing EC were evaluated for VLA-4 and VCAM-1 expression by immunohistochemistry and immunofluorescent analyses. To investigate whether the interaction between VLA-4 and VCAM-1 is needed for the genesis of AC, mice developing EC were treated with anti-VLA-4 or anti-VCAM-1 antibodies two h before and after RW challenge. As a control, EC-developing mice were treated with normal rat IgG. Twenty-four hours after RW challenge, the conjunctivas were harvested for histological analysis. RESULTS: Upon induction of EC, VLA-4-expressing cells infiltrated the conjunctiva but the constitutive VCAM-1 expression around conjunctival vessels was not augmented. Immunofluorescent analyses demonstrated that most of the T cells infiltrating the conjunctiva expressed VLA-4 but only half of the infiltrating eosinophils expressed it. Treatment with both anti-VLA-4 and anti-VCAM-1 antibodies significantly suppressed the infiltration of eosinophils into the conjunctiva that was induced by either active immunization or splenocyte transfer. CONCLUSIONS: These results confirm that VLA-4-expressing cells infiltrate the conjunctiva and that the interaction between VLA-4 and VCAM-1 is needed for the development of EC.

Adoptive Transfer↗
PubMed1991

Leishmanial blepharo-conjunctivitis.

We describe a case of blepharo-conjunctivitis due to Leishmania donovani in association with nodules of post kala azar dermal leishmaniasis (PKDL) on the chin. The diagnosis was confirmed by isolation of the parasite in culture. Direct implantation of the parasite by contaminated fingers from the chin nodules to the eye is suggested as the mode of spread. The role of cell-mediated immunity, (CMI) in restricting the skin lesions on the chin for 37 years at the same site, was suspected. This is only the second report of ocular involvement in L. donovani infection from India.

Agglutination Tests↗
PubMed1991

Limbal vernal kerato-conjunctivitis in Yaounde, Cameroon. A clinico-immunology study.

Limbal Vernal kerato-conjunctivitis is the 6th most frequent diagnosis in the Ophthalmology service of CHU, Yaounde, Cameroon, and accounts for 2.8% of all clinic consultations. Only grades I and II of the disease (Diallo's classification) are found in this forest zone of Africa. Advanced stages which may cause corneal blindness being probably due to absence of xerophthalmia in this part of Africa. Both sexes are equally affected. Association with other allergic diseases is very rare and there is no hereditary tendency. Serum and tear Immunoglobulin assays in patients and controls of the same parent-hood showed no statistical differences (P > 0.05). Mast cell immunocytological studies might be more rewarding. Relief of pruritus is best with sodium cromoglycate and Naaga. However, in severe cases interrupted systemic steroids (not exceeding one week each time) are utilized. Poor drug compliance, due to costs is frequent; probably cautious cryo application in severe cases, might together with infrequent Naaga or sodium cromoglycate, procure longer remissions.

Adolescent↗
PubMed1991

Dexamethasone in the complex treatment of Chlamydial conjunctivitis.

A study was performed on 321 patients with paratrachoma: acute follicular conjunctivitis-189, subacute-132. The first group of patients (108) received 1% Tetracycline ointment 4 to 5 times daily, the second group (103 patients)-1% Tetracycline ointment + 0.1% Dexamethasone eye drops, the third group (110 patients)-Eubetal ointment (tetracycline 0.5%, betamethasone 0.1%, chloramphenicol 1%, colistin). Therapeutic efficacy was higher in groups were antibiotics combined with corticosteroids. Cured in 4 weeks in group I-46.3%, in group II-72.8%, in group III-71.8%, cured in 6 weeks-75.9%, 88.3% and 86.4% respectively.

Acute Disease↗
PubMed1990

Giant papillary conjunctivitis associated with elevated corneal deposits.

A patient presented with central corneal scarring and neovascularization associated with elevated deposits that were shown to be keratin and calcium. Giant papillary conjunctivitis (GPC) was noted at a corresponding location in the palpebral conjunctiva. The lid reaction resolved after the elevated corneal deposits were debrided. A rigid gas-permeable contact lens was then fitted for visual rehabilitation. Either foreign bodies or elevated corneal deposits may cause GPC.

Adult↗
PubMed2006

[First Hungarian report of olopatadine eyedrop therapy in children and adults suffering from seasonal allergic conjunctivitis].

UNLABELLED: The eye drop Opatanol (its main component is olopatadine, which has an antihistaminic and membrane-stabilizing effect) in Hungary is not well known yet. PATIENTS AND METHODS: In 2004 and 2005 in the ragweed season we had treat with olopatadine eyedrop for 2 weeks (two times daily) 37 children, who had ragweed allergy. The average age of the 23 boys was 8.8 years, and for the 14 girls 10.5 years. In July and August of 2004 10 adult allergic female (average of their age: 29,2 years) also had receive olopatadine for 2 weeks. The severity of the symptoms was recorded by using a scale from 0 to 3 (where 3 indicates the most severe symptoms) before and 2 weeks after the beginning of the treatment, and the average was calculated. RESULTS: The discomfort feeling decreased from 2.4 +/- 0.5 to 0.8 +/- 0.2 in children, and from 1.5 +/- 0.9 to 0 in adults, the itching from 2.5 +/- 0.4 to 0.2 +/- 0.1 in children, and from 1.6 +/- 1.2 to 0 in adults, the foreign body sensation from 1.6 +/- 0.9 to 0.7 +/- 0.4 in children, and from 1.3 +/- 1.1 to 0 in adults, the tearing from 1.9 +/- 0.9 to 1.0 +/- 0.3 in children, and from 1.0 +/- 1.0 to 0.1 in adults, and the redness from 2.2 +/- 0.4 to 1.1 +/- 0.2 in children and from 1.9 +/- 0.8 to 0.5 +/- 0.5 in adults. We observed side effect in one child (the redness of the conjunctiva increased after the application of the eye drop) and in two adults (burning sensation for short time, in the other case foreign body sensation for 30 seconds). CONCLUSIONS: The anti-allergic eye drop olopatadine is a safe and effective treatment for seasonal allergic conjunctivitis even in childhood. It is comfortable, to use twice daily is sufficient.

Adolescent↗
PubMed2006

Intravital microscopy of leukocyte-endothelial dynamics using the Heidelberg confocal laser microscope in scleritis and allergic conjunctivitis.

PURPOSE: To examine leukocyte-endothelial cell rolling and arrest in human ocular vessels overlying sites of inflammation in various ocular inflammatory diseases in comparison to normal controls using the Heidelberg confocal laser microscope, which provides images with greater clarity and resolution than the tandem scanning microscope that uses white light. METHODS: Healthy controls (n=8) and patients with active anterior scleritis (n=7) or allergic eye disease (n=4) were scanned using the Heidelberg confocal laser microscope (HRT II) with the Rostock cornea module attachment for a minimum of 5 min at a depth of 45-120 microm from the conjunctival epithelial surface. RESULTS: There was a marked increase in the number of rolling leukocytes in scleritis patients (534+/-119 cells per mm2/min) versus controls (6+/-6 cells per mm2/min; p=0.0002) or allergic patients (59+/-44 cells per mm2/min; p=0.009). No statistically significant increase was seen in allergic patients compared to controls (p=0.059). A similar pattern was seen in the number of arrested leukocytes in patients with scleritis (56+/-23 cells per mm2) in comparison to either those with allergic eye disease or controls (each=0 cells per mm2; p=0.02). CONCLUSIONS: Patients with scleritis have a significantly increased number of rolling and arrested leukocytes in superficial ocular vessels in comparison to patients with mild allergic conjunctivitis and controls. The image quality with this microscope is superior to prior studies with a scanning microscope.

Adult↗
PubMed1991

Histamine and prostacyclin. Primary and secondary release in allergic conjunctivitis.

The relationship between the release of histamine, a major mast cell mediator of conjunctival type I reactions, and the production of a prostanoid, prostacyclin (prostaglandin I2, PGI2), was examined in a guinea pig model of allergic conjunctivitis. Guinea pigs were sensitized topically and challenged by repeated conjunctival instillation of fluoresceinyl ovalbumin. Histamine and 6-keto-PGF1 alpha, the stable product of the spontaneous degradation of PGI2, were measured in tears by radioimmunoassays. Clinical type I reactions and tear histamine appeared by 8 days and increased up to 22 days during the initial sensitization, with notable variations between animals. The kinetics of histamine and 6-keto-PGF1 alpha release in tears were examined over a 24-hr period after the antigen challenge. Histamine release was maximal during the first 10 min and returned to baseline values by 1 hr in all instances. The 6-keto-PGF1 alpha release also peaked during the first 10 min but continued for an extended period. The ratio of tear 6-keto-PGF1 alpha to histamine increased more than 16-fold over the 2 hr after antigen challenge. Late-phase reactions with second peaks of histamine or 6-keto-PGF1 alpha in the tears were observed in two different guinea pigs 4-8 hr after antigen challenge. Histamine applied to the eyes of naive guinea pigs also induced the release of 6-keto-PGF1 alpha in tears. Histamine appeared to act as a primary mediator, stimulating the secondary production and release of PGI2 by constitutive (eg, vascular) and possibly infiltrating inflammatory cells during an allergic conjunctival reaction.

6-Ketoprostaglandin F1 alpha↗
PubMedDate not supplied

Incidence of atopic stigmata and prick test results in patients with asthma, allergic rhinitis and conjunctivitis.

Allergic diseases are part of the 'modern lifestyle' and their incidence is still increasing. Cutaneous markers (stigmata) usually provide valuable clues for the diagnosis of atopic diseases. This study evaluated the prevalence of the four major and twenty-one minor criteria of Hanifin and Rajka in a total of 246 patients with mucosal allergies (99 asthma, 108 allergic rhinitis, and 39 allergic conjunctivitis). The two most prevalent major criteria were history of atopic diseases and pruritus. The most prevalent three minor criteria were periorbital darkening, influence of environmental factors and xerosis. The most common prick test-positive allergens were grass and mite allergens. Despite evidence for a high co-morbidity between atopic diseases, in daily clinical practise diagnostic and therapeutic procedures generally focus on the most predominant disease. We concluded that it may be important to screen subjects with mucosal allergies for the presence of major and minor cutaneous stigmata. Screening for cutaneous manifestations and subsequent treatment might further enhance the quality of life of these patients.

Adult↗