The differences between true myopia and pseudomyopia are different etiologic factors, different symptoms, different optometric results, and so on. 1. Different etiology: True myopia is mainly related to genetic factors, environmental factors, developmental abnormalities, etc. Pseudomyopia is usually formed by the malfunction of the eye’s regulation, the eye’s ciliary muscle continuous contraction, over-adjustment, the formation of regulation spasm, lens refractive error increases, which will make the focus of light to the retina shifted in front of the state of myopia. 2. Symptoms are different: true myopia is basically normal at near places, but blurred at far places, with the increase of myopia, accompanied by dry eyes, photophobia, double vision and other symptoms, and vision can not be restored after rest. Pseudomyopia is mainly manifested as unclear vision at a distance and clear vision at a near place, and the vision can be restored to normal after dilating the pupils or resting. 3. Optometry results are different: myopia will not be reduced after pupil dilation for true myopia patients, but myopia can be significantly reduced or disappear after pupil dilation for pseudomyopia patients. It is recommended that myopia patients consult regular hospitals in time to assess their condition and choose the appropriate treatment according to the doctor’s instructions.