Refractive Errors Eyeball Hyperopia 129559838

Tags: focus refraction eye optical spot lens blurred point Eyesight sight vision shortsighted vein optic iris disc focal central pupil optometry defect correction myopia ophthalmology eyeball artery cornea chamber nearsightedness vitreous optometrist retina nerve hyperopia diopters farsightedness astigmatism errors Retinal anterior longsightedness refractive longsighted sightedness sclera fovea choroid ciliary intraocular zonules