This paper reviews smartphone-based ophthalmic diagnostic technologies and analyzes the technical features of slit lamp micro-scopes,fundus imaging devices and corneal topographers that use smartphone optical imaging technology for ocular structural examination.From the research,the application of smartphones in ophthalmology has the advantages of good portability,ease of use and low cost,which can increase the opportunities of patients,especially patients in areas with scarce medical resources,to have access to ophthalmic disease diagno-sis,and can save professional medical resources.In the future,smartphone-based ophthalmic diagnostic devices will have a wide range of ap-plications in hospitals,clinics and community health centers for ophthalmic disease screening,and can also be used in medical schools for clinical teaching.
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