Fundus Magnification Calculator

Axial Length Method

Refractive Method

Camera Parameters

Camera Magnification Factor

Please enter valid camera magnification

Ocular Parameters

Axial Length (mm)

Please enter valid axial length

Corneal Power (D)

Please enter valid corneal power

Lens Parameters

Lens Power (D)

Please enter valid lens power

Working Distance (mm)

Please enter valid working distance

Total Fundus Magnification: –

Retinal Image Size: –

Calculation Method: –

Magnification Components

Camera Magnification: –

Ocular Magnification: –

Lens Magnification: –

Magnification Composition

Camera Component

Ocular Component

Lens Component

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Clinical Interpretation

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💡 About Fundus Magnification

Fundus magnification calculation is essential for accurate measurement of retinal structures in ophthalmology. It accounts for camera optics, ocular parameters, and examination conditions.

Axial Length Method Formula: M_total = M_camera × M_ocular × M_lens

Refractive Method Formula: Uses spherical equivalent and vertex distance for emmetropic eyes

Note: This calculator provides estimates for educational purposes. Clinical measurements should be verified with calibrated instruments.