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To establish the baseline levels and monitor the progress of two newly introduced global eye health indicators in Xinxing County, including effective refractive error coverage (eREC) and effective cataract surgery coverage (eCSC). And to assess the prevalence and treatment status of common eye disease in Xinxing County.
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| Measure | Description | Time Frame |
|---|---|---|
| Visual acuity | Test and record uncorrected visual acuity; if the participant wears glasses, measure the best corrected visual acuity with glasses. For participants with poor unaided or corrected visual acuity (<4.7), perform additional pinhole visual acuity testing. | through study completion, an average of 1 year |
| Measure | Description | Time Frame |
|---|---|---|
| Strabismus | Assess strabismus status and angle at both near and distance fixation. | through study completion, an average of 1 year |
| Autorefraction | Measure spherical power, cylindrical power, and axis in both eyes. Cycloplegia may be required in children, preferably using 1% tropicamide, one drop each time, three times. Before cycloplegia, check allergy history, medical history, and anterior chamber depth; inform guardians of potential risks and precautions related to cycloplegia, and ensure that guardians accompany the child throughout the procedure. |
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Inclusion Criteria:
Exclusion Criteria:
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Primary and secondary school students in Xinxing County and people covered by the national basic public health service, including children aged 0-6, seniors over 65 years old and diabetic patients, etc.
| Name | Role | Phone | Extension | |
|---|---|---|---|---|
| Lingyi Liang | Contact | +8602087330487 | lianglingyi@gzzoc.com |
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| ID | Term |
|---|---|
| D012030 | Refractive Errors |
| D002386 | Cataract |
| ID | Term |
|---|---|
| D005128 | Eye Diseases |
| D007905 | Lens Diseases |
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| through study completion, an average of 1 year |
| Questionnaire | Questionnaires on demographics, disease histories and etc. | through study completion, an average of 1 year |
| Fundus examination | Examine the retina of both eyes and document any retinal pathology. If pupils are too small, mydriasis may be required, following the same drugs and procedures as above. | through study completion, an average of 1 year |
| Anterior segment examination | Use a slit lamp to examine eyelids, conjunctiva, cornea, anterior chamber, and lens in both eyes. Record any abnormalities. Grade lens opacities according to the LOCS III classification system. | through study completion, an average of 1 year |