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The study aims to explore the effects of isotretinoin therapy on the dry eye parameters in acne vulgaris patients & determine if it is dose-dependent or not.
To measure the tear film, the eye lid thickness, the meibomian gland function and to do objective tests for comparison
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| low dose isotretinoin | Acne patients taking 20 mg daily isotretinoin |
| |
| high dose isotretinoin | Acne patients taking 0.5 mg/kg daily dose of isotretinoin |
| |
| Normal control |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Ocular Surface Disease Index (OSDI) questionnaire | Diagnostic Test | The OSDI is a validated, self-administered questionnaire for assessing the presence and severity of ocular surface disease symptoms. The OSDI questionnaire includes 12 questions about the respondent's past week experience with the ocular symptoms, vision-related function, and environmental triggers |
| Measure | Description | Time Frame |
|---|---|---|
| Total ocular surface disease index (OSDI) SCORE | Total OSDI score ranged from 0 to 100 with means greater symptom severity | 3 months |
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Inclusion Criteria:
Exclusion Criteria:
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Acne patients on isotretinoin
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| ID | Term |
|---|---|
| D000152 | Acne Vulgaris |
| ID | Term |
|---|---|
| D017486 | Acneiform Eruptions |
| D012871 | Skin Diseases |
| D017437 | Skin and Connective Tissue Diseases |
| D012625 | Sebaceous Gland Diseases |
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