The Illustrated Optical Manual, Or Handbook of Instructions for the Guidance of Surgeons in Testing Quality and Range of Vision, and in Distinguishing and Dealing with Optical Defects in General |
Other editions - View all
The Illustrated Optical Manual: Or Handbook of Instructions for the Guidance ... T. Longmore No preview available - 2018 |
The Illustrated Optical Manual, Or Handbook of Instructions for the Guidance ... Thomas Longmore, Sir No preview available - 2016 |
Common terms and phrases
accommodation acuteness of vision amblyopia ametropia ametropic amount of Acc appear army asthenopia astigmatic eye astigmatism axis binocular vision bull's-eye candidate cause centre ciliary muscle colour colour-blindness concave lens convergence convex lens cornea correcting lens correction Crown 8vo cylindrical lens defect degree diagnosis dioptric diplopia direction distance distant objects distant point distinct vision effects emmetropic examination exerted exist eye under observation feet focal fundus glasses horizontal hypermetropic inches keratoscopy left eye lenses medical officer military service mirror myopic normal acuteness ocular ophthalmoscopic optic parallel rays patient person placed point of distinct power of Acc practice presbyopia principal focus prism rays of light recognised recruit refractive defect refractive power refractive quality regards rendered retina retinal images rifle right eye seen shadow sight soldier spectacles spherical strabismus surgeon target test-dots tion unfit vertical visual acuteness visual angle visual lines