摘要:

AbstractThe animal models are not, strictly speaking, valid for clinical application to children, primarily because of the large differences in the duration of the critical or sensitive period. However, they do provide a useful conceptual framework to follow, especially while determining the waxing and waning of the amblyopia in each eye by preferential looking or visual evoked potential acuity methods. These methods allow us to detect or determine the degree of amblyopia and guide the treatment or prevention of stimulus deprivation amblyopia in each child by direct measurement. The reciprocal effect of amblyopia found by Thomas, Mohindra and Held in infants by the preferential looking method and confirmed and extended in age by our group with the visual evoked potential acuity method could have been predicted by the animal modelers from the cross-suturing experiments. It appears that more harm than good may be done by patching infants for the treatment of amblyopia without measuring the acuity of each eye to avoid the significant loss of connections to the patched eye and to both eyes (binocular units).

ISSN:0093-7002    

出版商:OVID    

年代:1982

数据来源: OVID

ISSN:0093-7002    

出版商:OVID    

年代:1982

数据来源: OVID

摘要:

AbstractThis paper describes the design, selection, and implementation of a computerized system for accounting and record-keeping. Failings of the preceding system are analyzed. Details of the daily usage of this system are provided, along with examples of forms which are used.

ISSN:0093-7002    

出版商:OVID    

年代:1982

数据来源: OVID

摘要:

AbstractThis paper describes how a computer system may be integrated into all phases of a professional (in this case, dental) education program, including academic admission, review of board examination questions, clinic scheduling, patient identification and follow-up, monitoring number and type of patient contacts, and accounting.

ISSN:0093-7002    

出版商:OVID    

年代:1982

数据来源: OVID

摘要:

AbstractThis paper discusses theoretical considerations in design of uniform data sets. It also demonstrates how practice and patient management may be assessed through the use of such data sets.

ISSN:0093-7002    

出版商:OVID    

年代:1982

数据来源: OVID

摘要:

AbstractResults of two surveys of office visits to optometrists and ophthalmologists are described. Funding of present and future optometric research by the National Eye Institute is discussed, with recommendations of areas for research.

ISSN:0093-7002    

出版商:OVID    

年代:1982

数据来源: OVID

摘要:

AbstractThis paper offers a frank discussion of the difficulties involved in developing a standardized data base. These difficulties include: agreement on diagnostic coding, compliance in input of data, philosophical differences among the schools and colleges of optometry, assessment of clinical competence, and comparison among institutions.

ISSN:0093-7002    

出版商:OVID    

年代:1982

数据来源: OVID

摘要:

AbstractDevelopment and implementation of a standardized data base in the external and internal clinic programs of the Pennsylvania College of Optometry are discussed, along with means of establishing compliance by interns and supervisors.

ISSN:0093-7002    

出版商:OVID    

年代:1982

数据来源: OVID

摘要:

AbstractRigid contact lenses were fitted on primates to study the subsequent corneal epithelial injury. This trauma was compared to corneal abrasions produced by a blunt object. The traumatic abrasion caused a rupture of the basal cells, which were identified as the most vulnerable part of the corneal epithelium for such an injury. The internal plasmalemma of the basal cell remained adherent to the epithelial basement membrane due to the strong hemidesmosomes along the cell membrane. Contact lenses were capable of producing similar injuries which did not penetrate the basement membrane and therefore did not involve the anterior limiting lamina (Bowman's membrane). We concluded that contact lenses produce a self-limiting trauma and even a severe case of contact lens overwear, although it causes deep corneal abrasions, seldom results in permanent scar formation.

ISSN:0093-7002    

出版商:OVID    

年代:1982

数据来源: OVID

摘要:

AbstractSubjects wore blue filters (Kodak Wratten 45) in front of their normal spectacle correction for a period of 4.5 hr. Visual evoked potential (VEP's) were measured (monocularly) before, in white light and through the blue filters at the start and finish of wearing the filters. Predictably, from the chromatic interval, the subjects initially showed some degree of myopia, confirmed by more negative lens power required to give maximum VEP response. However, after 4.5 hr of wear of the filters, VEP's were measured again and it was found that the maximum VEP response was obtained in each case with less negative lens power, indicating adaptation of the visual system toward emmetropia. The role of accommodation in this adaptive process is discussed.

ISSN:0093-7002    

出版商:OVID    

年代:1982

数据来源: OVID