comprehensive human eye anatomy detailed structure depth and function for ophthalmology students and

human eye anatomy structure diagram medical ophthalmology care cornea lens optic nerve choroid ciliary body sclera aqueous humor vitreous accommodation pupillary reflex visual acuity diseases glaucoma cataracts macular degeneration diabetic retinopathy muscles pathways neuroanatomy physiology student ophthalmologist healthcare professional health vision education detailed drawing graphics disorders system depth field reference educational resource