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Biomedical subjects

Kazumi Fukagawa

Publications and source records attributed to Kazumi Fukagawa.

At least 19 recordsLinked to original sources

The impact of the onset time of atopic keratoconjunctivitis on the tear function and ocular surface findings.

PURPOSE: To investigate the tear and ocular surface findings between controls, children, and adults with atopic keratoconjunctivitis (AKC). DESIGN: Prospective comparative study. METHODS: Twenty eyes of 10 childhood-onset, 10 eyes of five adult-onset, AKC adult patients, and 12 eyes of six children with infantile-onset AKC, 14 eyes of seven normal adults and seven normal children were recruited. Corneal aesthesiometry, Schirmer test, tear film break-up time (BUT), vital staining, and conjunctival impression cytology were performed. RESULTS: The Schirmer and Rose Bengal scores in childhood-onset adult AKC patients were considerably worse than adult-onset adult AKC patients, pediatric subjects, and the controls (P < .05). The same significant relation was observed in impression cytology parameters. CONCLUSIONS: Ocular surface disease in childhood-onset adult AKC patients was characterized by greater ocular surface epithelial damage. Prolonged inflammation may be important in the evolution and progression of ocular surface disease in patients with longstanding active AKC.

Adult↗

Successful tear lipid layer treatment for refractory dry eye in office workers by low-dose lipid application on the full-length eyelid margin.

PURPOSE: To test tear lipid layer treatment by low-dose lipid application on the full-length eyelid margin for the treatment of office workers with dry eyes refractory to conventional treatments. DESIGN: Prospective interventional case series. METHODS: Thirty eyes of 30 office workers with dry eyes with dark tear interference images, which did not respond to conventional treatments, were included. To supply lipid using a commercially available nonpreserved topical medication having both polar and nonpolar lipid base, ofloxacin eye ointment (Santen Pharmaceutical, Osaka, Japan) was selected. Low-dose ofloxacin ointment application on the full-length eyelid margin was carried out three times a day for two weeks. The symptom of ocular dryness using a visual analog scale, tear interferometry to assess lipid layer thickness (LLT), corneal fluorescein staining, tear-film breakup time (BUT), and meibum expressibility gradings were compared. RESULTS: After the treatment, the symptom score of ocular dryness decreased from 91.4 +/- 11.9 to 33.6 +/- 21.0 (P < .0001), LLT increased from 39 +/- 4 nm to 161 +/- 91 nm (P < .0001), BUT was prolonged from 2.6 +/- 1.6 seconds to 4.8 +/- 2.1 seconds (P = .01), and meibum expressibility gradings decreased from 2.8 +/- 1.3 to 1.6 +/- 1.3 (P = .0005). CONCLUSION: For office workers with refractory dry eyes, tear lipid layer treatment by low-dose ointment applied on the full-length eyelid margin was shown to be an effective approach. The applied lipid formed a uniform lipid layer, which contributed to tear stability, leading to the improvement of the symptom.

Adult↗

Quantitative evaluation of the early changes in ocular surface inflammation following MMC-aided papillary resection in severe allergic patients with corneal complications.

BACKGROUND: Atopic keratoconjunctivitis (AKC) and vernal keratoconjunctivitis (VKC) are chronic inflammatory allergic diseases that are associated with some common conjunctival and corneal complications.1 The clinical corneal manifestations of both entities may include superficial punctate keratitis, macroerosions, corneal ulceration, plaque formation, corneal neovascularization, and lipid infiltration. PURPOSE: To quantitatively evaluate the early ocular surface inflammation before and after mitomycin C (MMC)-aided papillary resection in severe allergy patients with corneal complications. METHODS: Three eyes with VKC and 5 eyes with AKC were included in this study. All eyes had cobblestone-like papillae on the upper tarsal conjunctiva and corneal complications such as corneal ulcers, defect, or erosions that were refractory to conventional treatment of more than 2 weeks. Papillary resection with intraoperative 0.05% MMC application for 5 minutes on the palpebral conjunctiva was carried out in all eyes. Corneal and conjunctival findings were evaluated before and 1 week and 2 weeks after surgery. Brush cytology (BC) and evaluation of tear eosinophilic cationic protein (ECP) levels by radioimmunoassay techniques were performed as well pre- and postoperatively. RESULTS: Corneal and conjunctival complications resolved in all patients within 7 days after resection. Postoperative tear ECP levels decreased significantly with papillary resection (P< 0.05). Concomitant brush cytology showed a significant decrease in the number of eosinophils and neutrophils following papillary resection (P < 0.05). CONCLUSION: MMC-aided papillary resection provided a dramatic decrease in ocular surface inflammation as evidenced by decrease in the number of inflammatory cells as well as tear ECP levels with a rapid improvement of clinical corneal and conjunctival findings.

Adolescent↗

Mechanisms of giant papillary formation in vernal keratoconjunctivitis.

PURPOSE: Tissue remodeling, known to accompany exacerbation of bronchial asthma (BA) and characterized by thickening of reticular basement membrane, increased fibrosis, and angiogenesis, is believed to be an important mechanism in giant papillary formation in vernal keratoconjunctivitis (VKC). This study was conducted to confirm the difference of tissue remodeling between BA and VKC and to determine the most relevant factor for VKC exacerbation. METHODS: Histopathologic analysis of conjunctival specimens from 6 patients with VKC and 4 normal controls was performed. Immunohistochemistry tests for collagen types 1, 3, and 5, fibronectin, laminin (a marker of the basement membrane of the epithelium or vessels), fibroblast (prolyl 4-hydroxylase), and alpha-smooth muscle actin (alpha-SMA) were performed. Morphometric analysis evaluated immunoreactive areas for collagens and fibronectin and the number of cell nuclei in VKC papillae and normal control specimens. RESULTS: In histopathologic sections of VKC papillae, mononuclear cells were mainly observed in the central region and granulocytes preferentially in the peripheral stroma. Immunohistochemistry showed increased vascularity and existence of fibroblasts and alpha-SMA-positive cells in VKC papillae. Morphometric analysis showed that the number of cell nuclei in VKC papillae was 7.3 times higher versus in normal controls (P < 0.05). Furthermore, the immunoreactive area for fibronectin was 4.5 times larger versus in normal controls (P < 0.05), although collagens were not significantly different between the 2 groups. CONCLUSION: Giant papillary formation in VKC is thought to occur in relation to tissue remodeling. However, the most relevant factor for the exacerbation of VKC seems to be inflammation rather than fibrosis.

Actins↗

Efficacy of levocabastine hydrochloride ophthalmic suspension in the conjunctival allergen challenge test in Japanese subjects with seasonal allergic conjunctivitis.

BACKGROUND: This study was conducted to investigate the efficacy and safety of 0.025% levocabastine hydrochloride in Japanese subjects with seasonal allergic conjunctivitis and its duration of action using the conjunctival allergen challenge (CAC) test. METHODS: Twenty-four asymptomatic subjects were randomized to instill 0.025% levocabastine ophthalmic suspension in one eye and vehicle in the other eye 10 minutes before the CAC test. Signs and symptoms of allergic conjunctivitis were scored 10, 15, and 25 minutes after the CAC test. The duration of drug effects was also evaluated by allergen rechallenge 4 hours after levocabastine administration. The itching score for each eye as the primary efficacy endpoint was assessed 15 minutes after the CAC test using a 5-point scale. RESULTS: The mean itching score in the levocabastine-treated group was 0.08 +/- 0.06, which was significantly lower than the mean score of 1.98 +/- 0.16 in the vehicle group (P < 0.0001). The redness and chemosis of the conjunctiva were also improved significantly compared with the vehicle group. Levocabastine showed prolonged efficacy in inhibiting itching (0.42 +/- 0.12 vs 0.94 +/- 0.17, P < 0.0002) and redness (1.04 +/- 0.18 vs 1.42 +/- 0.22, P < 0.01) of the conjunctiva upon the rechallenge test. No significant topical or systemic adverse safety findings were observed in the levocabastine group. CONCLUSIONS: The results indicate that 0.025% levocabastine ophthalmic suspension is effective and safe in the treatment of allergic conjunctivitis with a duration of action of at least 4 h.

Adult↗

The early efficacy of topical levocabastine in patients with allergic conjunctivitis.

BACKGROUND: We investigated the early efficacy of topical levocabastine, an H(1) histamine-receptor antagonist, in improving the clinical symptoms of allergic conjunctivitis. METHODS: Thirty-six patients with allergic conjunctivitis were enrolled. One drop of levocabastine was instilled in one eye and one drop of artificial tears in the contralateral eye. Clinical examinations were performed before, and 15 and 30 minutes after instillation. Symptoms of itching and signs of injection were assessed at each time point. RESULTS: Both levocabastine and artificial tears resulted in a statistically significant reduction in ocular itching. However, levocabastine was significantly more effective. CONCLUSIONS: Although artificial tears had a positive effect in reducing symptoms of allergic conjunctivitis, by the washing out of allergens, levocabastine was more effective than artificial tears in controlling acute symptoms of allergic conjunctivitis, demonstrating that the selective H1 histamine-receptor antagonist action of levocabastine is rapidly effective in a clinical setting.

Administration, Topical↗

TGF-beta1, IL-1beta, and Th2 cytokines stimulate vascular endothelial growth factor production from conjunctival fibroblasts.

Giant papillary formation containing newly formed vessels is a major characteristic of severe allergic conjunctivitis, such as atopic keratoconjunctivitis (AKC) or vernal keratoconjunctivitis (VKC). We examined production of vascular endothelial growth factor (VEGF) from cultured conjunctival fibroblasts from normal volunteers under stimulation with type 1-, type 2-helper T cell derived and proinflammatory cytokines to investigate the mechanism of giant papillae formation in AKC/VKC. Primary cultured conjunctival fibroblasts were incubated with interleukin (IL)-4, IL-13, IL-1beta, IL-2, tumor necrotizing factor (TNF)-alpha, interferon (IFN)-gamma, or transforming growth factor (TGF)-beta1. Effects of cytokines on VEGF protein secretion in supernatant were assessed by ELISA, and VEGF mRNA expression in cultured cells were assessed by quantitative PCR. TGF-beta1 most effectively increased VEGF concentration with dose- and time-dependent manner IL-1beta, IL-4, and IL-13 significantly increased VEGF concentration. Though IL-2 also showed slight increase of VEGF concentration, it was not statistically significant. TNF-alpha and INF-gamma did not increase VEGF concentration. Quantitative PCR showed significant increase of VEGF mRNA in TGF-beta1, IL-1beta, and IL-4 stimulated fibroblasts. TGF-beta1, IL-1beta, and Th2 cytokines from allergic inflammatory cells induced VEGF production in conjunctival fibroblasts, and may play a crucial role in neovascularization and formation of giant papillae in AKC/VKC.

Cell Division↗

Ocular surface and MUC5AC alterations in atopic patients with corneal shield ulcers.

PURPOSE: To describe MUC5AC alterations and the ocular surface disorder in atopic patients with or without corneal ulcers. METHODS: Atopic patients' eyes were divided into two groups according to the presence and absence of corneal ulceration. The subjects underwent corneal sensitivity measurements, Schirmer test, tear film break-up time (BUT), fluorescein and Rose Bengal staining of the ocular surface and conjunctival impression cytology and brush cytology. Impression cytology samples underwent PAS and immunohistochemical staining for MUC5AC. Brush cytology specimens underwent evaluation for inflammatory cell expression and quantitative real-time PCR for MUC5AC mRNA expression. The differences related to the tear function and ocular surface examination parameters between patients with and without corneal ulceration and healthy control subjects were studied. In addition, the differences of the study parameters related to ocular surface epithelial health and inflammatory status between patient eyes with atopic keratoconjunctivitis (AKC) and vernal keratoconjunctivitis (VKC) were investigated. RESULTS: The mean corneal sensitivity and BUT values were significantly lower in atopic patients with corneal ulcers, compared to patients without ulcers and controls (p < 0.001). Brush cytology specimens from patients with corneal ulcers revealed significantly higher expression of inflammatory cells compared to patients without ulcers and controls (p < 0.001). Impression cytology samples from eyes with corneal ulcers showed significant squamous metaplasia and reduction in goblet cell density compared to eyes without ulcers and eyes of control subjects. The mean squamous metaplasia grade was significantly higher in eyes with AKC compared to eyes with VKC (p < 0.02). The mean goblet cell density was significantly lower in eyes with AKC compared to eyes with VKC (p < 0.01). Specimens from eyes with corneal ulcers showed PAS positive mucin pickup and did not stain positive for MUC5AC. MUC5AC mRNA expression was significantly lower in eyes with corneal ulcers compared to eyes without ulcers and eyes of control subjects. MUC5AC mRNA expression was also significantly lower in eyes with AKC compared to eyes with VKC. CONCLUSIONS: Ocular surface inflammation, tear film instability, and decreased conjunctival MUC5AC mRNA expression were thought to be important in the pathogenesis of noninfectious corneal shield ulcers in atopic ocular surface disease.

Adolescent↗

Prostaglandin D2 induces chemotaxis in eosinophils via its receptor CRTH2 and eosinophils may cause severe ocular inflammation in patients with allergic conjunctivitis.

PURPOSE: Eosinophils are known to have important roles in the pathogenesis of allergic conjunctivitis. Prostaglandin (PG) D2, which has been implicated as a factor in allergic diseases, is known to have chemotactic activity for eosinophils. Its receptor, chemoattractant receptor homologous molecule expressed on TH2 (CRTH2), serves as a receptor for PGD2 and has been reported to mediate PGD2-dependent migration of eosinophils. In the present study, both eosinophil toxic activity for corneal epithelial cells and chemotaxis induced by PGD2 in normal volunteers were investigated. Expression of CRTH2 in normal subjects was also measured. METHODS: Primary cultured corneal epithelial cells and eosinophils in serum from normal volunteers were used and a human corneal epithelial cell line was established. Studies were performed with/without amniotic membrane. CRTH2 expression on eosinophils was assessed by flow cytometry. Chemotaxis experiments were performed using a modified Boyden chamber technique. RESULTS: Corneal epithelial cells cultured with eosinophils showed higher floating epithelial cells and epithelial defect than those cultured in the absence of eosinophils. Flow cytometry analysis revealed that eosinophils expressed CRTH2. PGD2 induced chemotaxis of eosinophils. CONCLUSIONS: Corneal epithelial damage might be caused by eosinophils, which are recruited by PGD2 secretion via CRTH2 expressed on eosinophils.

Cell Line↗

Atopic ocular surface disease: implications on tear function and ocular surface mucins.

PURPOSE: To describe tear function, mucin alterations, and ocular surface disorder in patients with atopic diseases. METHODS: Subjects underwent corneal sensitivity measurements, Schirmer test, tear film break-up time (BUT) assay, and fluorescein and rose Bengal staining of the ocular surface. Conjunctival impression cytology and brush cytology were also conducted. Impression cytology samples underwent PAS and immunohistochemical staining for MUC5AC. Brush cytology specimens underwent evaluation for inflammatory cell expression and RT-PCR for MUC5AC mRNA expression. Differences related to tear function and ocular surface examination parameters among patients with and without corneal ulceration and healthy control subjects were studied. RESULTS: Mean corneal sensitivity and BUT values were significantly lower in atopic patients with corneal ulcers compared with patients without ulcers and controls (P<0.001). Brush cytology specimens from patients with corneal ulcers revealed significantly higher expression of inflammatory cells compared with patients without ulcers and controls (P<0.001). Impression cytology samples from eyes with corneal ulcers showed significant squamous metaplasia and reduction of goblet cell density compared with eyes without ulcers and control subjects. Specimens from eyes with corneal ulcers showed PAS (+) mucin pick up and did not stain positive for MUC5AC. MUC5AC mRNA expression was significantly lower in eyes with corneal ulcers compared with in eyes without ulcers and control subjects. CONCLUSIONS: Ocular surface inflammation, tear film instability, and decreased conjunctival MUC5AC mRNA expression are important in the pathogenesis of noninfectious corneal shield ulcers in atopic ocular surface disease.

Corneal Ulcer↗

The implications of the upregulation of ICAM-1/VCAM-1 expression of corneal fibroblasts on the pathogenesis of allergic keratopathy.

OBJECTIVE: The present study investigated the expression of ICAM-1 and VCAM-1 on fibroblasts with interleukin (IL)-4 and/or tumor necrosis factor (TNF)-alpha stimulation and assessed the effect of eosinophil adhesion on fibroblast viability. METHODS: Primary cultured human corneal fibroblasts were incubated with IL-4, TNF-alpha, or their combination for 24 hours. Expression of ICAM-1 and VCAM-1 was examined by real-time quantitative PCR and flow cytometric analysis. Purified eosinophils were cocultured with activated fibroblasts, and the number of eosinophils adhered to fibroblasts and the number of damaged fibroblasts were counted using microscopy. In a separate trial, conjunctival and corneal impression cytology was performed on patients with atopic keratoconjunctivitis and corneal ulcers (eight eyes) to assess the status of the ocular surface epithelium and the presence of inflammatory cell infiltrates. RESULTS: Real-time quantitative PCR and flow cytometric analysis revealed that both mRNA and protein of VCAM-1 and ICAM-1 were upregulated by IL-4 and TNF-alpha. IL-5-primed eosinophils adhered to the corneal fibroblasts treated with IL-4 and TNF-alpha, and the fibroblasts were damaged by eosinophil adherence. Anti-ICAM-1 antibody and anti-VCAM-1 antibody inhibited the eosinophil adherence to fibroblasts and the fibroblast damage. Impression cytology revealed extensive infiltration of neutrophil and eosinophils among isolated ocular surface epithelial cells with advanced squamous metaplasia. CONCLUSIONS: Corneal fibroblasts expressed ICAM-1 and VCAM-1 when activated with IL-4 and TNF-alpha. Eosinophils can adhere to the activated fibroblasts and can induce subsequent fibroblast damage through these adhesion molecules. Eosinophil adhesion to fibroblasts may possibly contribute to the pathogenesis of severe persistent allergic corneal ulcers.

Cell Adhesion↗

Tryptase increases proliferative activity of human conjunctival fibroblasts through protease-activated receptor-2.

PURPOSE: Tryptase that is released by mast cell degranulation has recently been thought to play a key role in wound healing in allergic bronchitis. Conjunctival fibroblasts secrete mediators and extracellular matrices that could exacerbate inflammation and papillary formation in allergic conjunctivitis. This study was conducted to investigate the effect of tryptase on the proliferation of conjunctival fibroblasts and studied whether this effect was mediated by protease-activated receptor (PAR)-2. METHODS: Conjunctival fibroblasts were cultured with or without tryptase (0.1 ng/mL to 1.0 microg/mL), and the proliferation rate was assessed after 48 hours. The effects of tryptase inhibitors (leupeptin, benzamidine) and a PAR-2 agonist (SLIGKV) were examined. The existence of PAR-2 mRNA and protein in conjunctival fibroblasts was examined by RT-PCR and Western blot analysis, respectively. The existence of PAR-2 in cultured conjunctival fibroblasts and conjunctival papillae from patients with vernal keratoconjunctivitis, as well as conjunctival tissue from normal subjects was examined by immunohistochemistry. RESULTS: Conjunctival fibroblast proliferation was upregulated by tryptase in a dose-dependent manner (P < 0.001). Leupeptin and benzamidine inhibited tryptase-induced fibroblast proliferation (P < 0.05), and SLIGKV mimicked tryptase's effect. PAR-2 mRNA and protein were detected in cultured conjunctival fibroblasts using RT-PCR and Western blot analysis. PAR-2 immunoreactivity in both the cultured conjunctival fibroblasts and in stromal cells in excised conjunctival tissues was observed. CONCLUSIONS: Tryptase increased conjunctival fibroblast proliferation and this response appeared to be mediated by PAR-2. Mast cells are the most likely source of tryptase in the conjunctiva and may play an important role in chronic exacerbations with conjunctival papillary formation in allergic conjunctivitis.

Benzamidines↗

Kaposi varicelliform eruption associated with 0.1% tacrolimus ointment treatment in atopic blepharitis.

OBJECTIVE: To report the association of Kaposi varicelliform eruption (KVE) with 0.1% tacrolimus ointment treatment of atopic blepharitis in a patient with atopic dermatitis (AD). METHOD: We encountered KVE in a 20-year-old male patient with atopic blepharitis and AD who developed generalized herpetic lesions on his face 28 days after commencement of treatment. RESULT: The lesions resolved quickly with intravenous acyclovir treatment. CONCLUSION: Ophthalmologists should be well aware of KVE as a complication of immunosuppressive treatment in patients with atopic blepharitis.

Acyclovir↗

A comparative evaluation of the efficacy of intraoperative mitomycin C use after the excision of cobblestone-like papillae in severe atopic and vernal keratoconjunctivitis.

OBJECTIVE: To evaluate the effect of intraoperative 0.02% mitomycin-C (MMC) use after excision of cobblestone-like papillae on preventing corneal recurrences compared with simple papillary resection. METHODS: Thirteen cases of atopic keratoconjunctivitis (AKC) and 6 cases of vernal keratoconjunctivitis (VKC) with a mean age of 12.0 +/- 3.4 years participated in this study. All patients had cobblestone-like papillae on the upper tarsal conjunctiva and corneal ulcers or erosions that were refractory to conventional treatment. Seventeen eyes received simple papillary excision. Papillary excision with intraoperative application of MMC was performed in 7 eyes: 0.02% MMC was applied for 2 minutes to the upper palpebral conjunctiva immediately after papillary excision. Recurrence of corneal lesions and regrowth of papillae were evaluated and compared retrospectively between the 2 groups. Postoperative follow-up ranged from 12 to 18 months. RESULTS: Papillary regrowth was observed in 14 out of 17 eyes (82.4%) in the simple resection group, whereas regrowth was noted in 4 out of 7 eyes (57.1%) in the MMC group (P > 0.05). The recurrence of corneal lesions was observed in 8 out of 17 eyes (47.1%) in the simple resection group (mean onset 1.5 +/- 1.7 months) compared with 1 eye with corneal recurrence 6 months after surgery in the MMC group (14.3%). The difference was statistically significant (P < 0.05). No complications related to MMC use were observed during the follow-up period. CONCLUSION: MMC-aided papillary resection may be rewarding in well-selected severe AKC and VKC cases in preventing recurrence of corneal complications, but the potential complications of MMC use would suggest caution in its consideration.

Adolescent↗

The relation of conjunctival and corneal findings in severe ocular allergies.

OBJECTIVE: Corneal lesions such as ulcers and erosions are major complications observed in patients with severe ocular allergic diseases. We aimed to look into the relationship between specific clinical conjunctival findings and the severity of corneal complications. METHODS: Thirty eyes of 6 patients with vernal keratoconjunctivitis (VKC) and 13 patients with atopic keratoconjunctivitis (AKC) were evaluated in this study. Slit-lamp photographs of upper tarsal conjunctiva and cornea were used to evaluate the clinical findings objectively. The corneal findings and clinical findings of upper tarsal conjunctiva such as conjunctival injection, edema, the height of papillae, and mucous discharge were evaluated and graded. Statistical correlations between conjunctival findings and the severity of corneal damage were analyzed. RESULTS: Conjunctival injection and edema significantly correlated with the severity of corneal complications. The height of the papillae and the amount of mucous discharge did not correlate with the severity of corneal complications. CONCLUSION: Direct signs of inflammation such as injection and edema correlated with corneal damage. The height of papillae did not show a significant correlation with the corneal findings. Our results suggest that inflammation of the conjunctiva rather than mechanical factors may play a greater role in the formation of corneal damage in severe ocular allergies.

Adolescent↗

Quantitative evaluation of eyelid elasticity using the cutometer SEM575 and its clinical application in assessing the efficacy of tacrolimus ointment treatment in eyelid atopic dermatitis.

PURPOSE: To study the clinical efficacy of a noninvasive suction device that measures eyelid skin elasticity in the treatment of eyelid atopic dermatitis using tacrolimus (FK-506) ointment. METHODS: Ten patients with eyelid atopic dermatitis treated with tacrolimus ointment and 10 normal volunteers participated in this study. The cutometer SEM575 was used to quantitatively evaluate eyelid skin elasticity. Severity of the eyelid atopic dermatitis was scored, and comparisons were made before and after treatment. RESULTS: Skin elasticity of patients with eyelid atopic dermatitis was significantly lower than that of normal volunteers (31.3 +/- 5.2% vs 40.2 +/- 7.8%, respectively). Skin elasticity of patients with eyelid atopic dermatitis improved significantly to 37.5 +/- 6.3% after treatment with tacrolimus ointment. The total severity score for eyelid atopic dermatitis also improved from 2.77 +/- 1.11 to 1.77 +/- 1.15. CONCLUSION: Measurement of skin elasticity using the cutometer SEM575 is a useful and reliable method for objective and quantitative evaluation of eyelid skin condition in patients with eyelid atopic dermatitis. The efficacy of short-term tacrolimus ointment treatment in patients with eyelid atopic dermatitis was confirmed quantitatively using this apparatus.

Adult↗

Dramatic healing of an allergic corneal ulcer persistent for 6 months by amniotic membrane patching in a patient with atopic keratoconjunctivitis: a case report.

PURPOSE: To present a case of allergic corneal ulcer in a patient with atopic keratoconjunctivitis (AKC) that was persistent for 6 months and healed by amniotic membrane patching. CASE REPORT: A 27-year-old male patient with a corneal ulcer associated with AKC persistent for 6 months despite conventional treatment underwent amniotic membrane patching. On removal of the amniotic membrane patch after 1 week, the corneal ulcer that had been persistent for 6 months had healed completely. CONCLUSION: We experienced a case with corneal ulcer that was persistent for 6 months and healed dramatically within 1 week with improved vision and corneal clarity. In such severe and persistent cases requiring rapid epithelialization, amniotic membrane should be considered as an adjunct to conventional therapy.

Adult↗