20D Ophthalmic Slit Lamp Examination Diagnostic Fundus Aspheric Retina Lens With Plastic Box

90D Fundus Lens Field of View: Provides a larger field of view, typically around 80 to 90 degrees, suitable for a comprehensive examination of multiple areas of the retina. Ideal for situations requiring extensive observation, such as overall retinal examination or monitoring diabetic retinopathy. Image Clarity: Offers high image resolution, capable of showing fine details and lesions, though not as high as that of a 20D lens. Suitable for detailed observation of the retinal structure, but might not capture details as clearly as a 20D lens. Magnification: Has a lower magnification compared to the 20D lens, making it suitable for observing larger areas of the retina. 78D Fundus Lens Field of View: Provides a slightly smaller field of view, typically around 70 to 80 degrees, suitable for examining multiple areas of the retina but not as wide as the 90D. Suitable for detailed retinal examination, though the field of view is less extensive than the 90D. Image Clarity: Provides good image resolution, suitable for observing the structure and lesions of the retina, with slightly higher resolution than the 90D. In cases where detailed observation of retinal fine structures is needed, the 78D may offer clearer images. Magnification: Offers higher magnification compared to the 90D lens, making it ideal for observing fine details and lesions in the retina. 20D: Field of View: Larger, suitable for observing the entire retina. Magnification: Lower, ideal for initial screenings and overall retinal assessment. Uses: Commonly used for evaluating diabetic retinopathy, retinal detachment, and similar conditions. Each type of fundus lens has its specific application scenarios, and doctors choose the appropriate type based on the examination needs.