NLM Classification Schedule WW

QS QT QU QV QW QX QY QZ W WA WB WC WD WE WF WG WH WI WJ WK WL WM WN WO WP WQ WR WS WT WU WV WW WX WY WZ

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WW Ophthalmology
	Classify works on ophthalmic nursing in WY 158.
	WW 1-100 Reference Works. General Works
	WW 101-170 Eye
	WW 101-113 Anatomy. Physiology. Hygiene
	WW 140-160 Diseases. Color Perception
	WW 166-170 Therapeutics. Eye Banks
	WW 202-290 Eye Structures
	WW 300-340 Refraction. Errors of Refraction
	WW 350-358 Corrective Devices
	WW 400-460 Neuromuscular Mechanism. Neurologic Manifestations of Disease
	WW 475-480 Manifestations of Disease. Poor Vision
	WW 505-525 Occupational Ophthalmology. Eye Injuries
	WW 600-620 Age Groups
	WW 704-722.1 Optometry
	Reference Works. General Works

WW 1	Societies (Cutter from name of institution) (Used for both monographs and serials)
	Includes ephemeral membership lists issued serially or separately. Classify substantial lists with directories. Classify annual reports, journals, etc., in W1.
	Collected works (General)
WW 5	By several authors
WW 7	By individual authors

WW 9	Addresses. Essays. Lectures (General)

WW 11	History of ophthalmology and optometry (Table G)
WW 11.1	General coverage (Not Table G)

WW 13	Dictionaries. Encyclopedias (Used for both monographs and serials)

WW 15	Classification. Terminology (Used for both monographs and serials)

WW 16	Tables. Statistics (Used for both monographs and serials)
	Classify tables used in optical dispensing calculations in WW 352.

WW 17	Atlases. Pictorial works
	Classify here also atlases on a specific part of the eye.

WW 18	Education
	Classify here works about education.

WW 18.2	Educational materials (Used for both monographs and serials)
	Classify here educational materials, e.g., outlines, questions and answers, programmed instruction, catalogs, computer-assisted instruction, etc., regardless of format. Classify textbooks, regardless of format, by subject.

WW 19	Schools and colleges (Used for both monographs and serials)
	Classify courses of study, catalogs, etc., in W 19.5.

WW 20	Research (General)
	Classify here works about research in general. Classify works about research on a particular subject by subject.

WW 21	Ophthalmology as a profession. Ethics. Peer review
	Classify works on optometry and opticianry in WW 721.

WW 21.5	Ophthalmic assistants

WW 22	Directories (Table G) (Used for both monographs and serials)
	Classify directories of optometrists and/or opticians in WW 722.
WW 22.1	General coverage (Not Table G) (Used for both monographs and serials)
	Laboratories, institutes, eye banks, etc.
WW 23	Collective
WW 24	Individual (Cutter from name of institution)
	Classify works on organ banks in WO 23-24; works on tissue banks in QS 23-24.

WW 25	Laboratory manuals. Technique

WW 26	Equipment and supplies
	Classify catalogs in W 26.

WW 26.5	Informatics. Automatic data processing. Computers (General)
	Classify works on use for special subjects by subject.
	Hospitals, clinics, dispensaries, etc.
WW 27	Collective (Table G)
WW 27.1	General coverage (Not Table G)
WW 28	Individual (Cutter from name of hospital) (Table G)
	Museums, exhibitions, etc.
WW 28.5	Collective
WW 28.6	Individual (Cutter from name of museum, etc.)

WW 32	Laws. Estimation of disability for compensation (Table G) (Used for both monographs and serials)
WW 32.1	General coverage (Not Table G) (Used for both monographs and serials)
WW 33	Discussion of law (Table G) (Used for both monographs and serials)
WW 33.1	General coverage (Not Table G) (Used for both monographs and serials)

WW 39	Handbooks. Resource guides (Used for both monographs and serials)

WW 80	Popular works (General)

WW 100	General works
	Classify works on specialty and on the specialty and diseases here. Classify works on diseases alone in WW 140.
	Eye Anatomy. Physiology. Hygiene

WW 101	Anatomy. Histology. Embryology. Biochemistry. Abnormalities

WW 103	Physiology of the eye. Vision (General)
WW 105	Visual perception. Space perception
	Cf. WW 150 Color perception.
WW 109	Ocular accommodation. Ocular adaptation

WW 113	Hygiene. Eye protective devices
	Cf. WW 80 Popular works.
	Diseases. Color Perception

WW 140	Eye diseases. Vision disorders (General or not elsewhere classified)
	Classify works on eye infections or hypersensitivity diseases in WW 160.
WW 141	Examination. Diagnosis. Diagnostic methods (General). Monitoring
	Classify works on the examination of a part with the part.
WW 143	Objective methods (e.g., Ophthalmoscopy. Slit lamp microscopy. Tonometry)
	Classify works on electronystagmography in WW 410; on electroretinography in WW 270; on gonioscopy in WW 210; on retinography in WW 300.
WW 145	Subjective methods. Evaluation of function (e.g., Visual acuity testing. Perimetry)
WW 149	Neoplasms
	Classify works on neoplasms of parts of the eye with the part.

WW 150	Color perception. Color blindness
	Cf. WW 105 Visual perception

WW 160	Eye infections. Hypersensitivity diseases (General or not elsewhere classified)
	Classify here diseases or infections whether caused by bacteria, parasites, or viruses or hypersensitivity. Classify works on eye diseases in general in WW 140.
	Therapeutics. Eye Banks

WW 166	Ocular therapeutics
	Cf. WW 168 Ophthalmological surgery.

WW 168	Ophthalmological surgery (General)
	Classify works on surgery for a particular disorder with the disorder. Cf. WW 340 Refractive surgery.

WW 170	Eye bank procedures (including those for specific parts of the eye)
	Classify material on eye banks in WW 23-24.
	Eye Structures

WW 202	Orbit

WW 205	Eyelids. Eyebrows
	Cf. WR 390-465 Skin appendage diseases.

WW 208	Lacrimal apparatus

WW 210	Anterior chamber. Posterior chamber. Aqueous humor (Eyeball)

WW 212	Conjunctiva
WW 215	Trachoma

WW 220	Cornea

WW 230	Sclera

WW 240	Uvea. Iris. Ciliary body
WW 245	Choroid

WW 250	Vitreous body

WW 260	Crystalline lens. Cataract

WW 270	Retina

WW 276	Blindness. Amblyopia

WW 280	Optic nerve

WW 290	Glaucoma
	Refraction. Errors of Refraction

WW 300	General works

WW 310	Astigmatism

WW 320	Myopia

WW 340	Refractive surgery
	Corrective Devices

WW 350	Optical dispensing. Spectacle fitting. Opticianry
	Classify works on optometry and opticianry as specialties in WW 704-722.1.
WW 352	Principles. Calculations. Tables
WW 354	Frames. Eyeglasses
	Classify works on intraocular lenses in WW 358 or if exclusively for cataract therapy, in WW 260.
WW 355	Contact lenses

WW 358	Prosthesis
	Neuromuscular Mechanism. Neurologic Manifestations of Disease

WW 400	General works

WW 405	Orthoptics (General)

WW 410	Disorders of ocular motility
WW 415	Strabismus

WW 460	Disorders due to diseases of the central nervous system. Neurologic manifestations of eye diseases (General)
	Manifestations of Disease. Poor Vision

WW 475	Eye manifestations of general disease
	Classify works on eye manifestations of specific diseases with disease.

WW 480	Medical aspects of reading problems associated with poor vision.
	Occupational Ophthalmology. Eye Injuries

WW 505	Occupational ophthalmology

WW 525	Foreign bodies. Injuries. Toxic injuries
	Age Groups

WW 600	Pediatric ophthalmology and optometry
	Classify works on particular disorders with the disorder.

WW 620	Geriatric ophthalmology and optometry
	Classify works on particular disorders with the disorder.
	Optometry

WW 704	General works. Office management
	Classify works on the specific functions of the optometrist in the WW number for the function; on functions of the optician in WW 350-355.

WW 721	Optometry and opticianry as professions. Ethics. Peer review
	Classify works on history of the professions in WW 11-11.1.

WW 722	Directories (Table G) (Used for both monographs and serials)
WW 722.1	General coverage (Not Table G) (Used for both monographs and serials)