ISSN:0093-7002    

出版商:OVID    

年代:1974

数据来源: OVID

摘要:

A method is described which completely determines the rotational state of the eye in terms of three spherical angles or in terms of an axis of rotation and an extent of rotation. The experimental method consists of photographing two distinct markers on the globe through a telephoto lens. The data transformation relies on the fact that the rotation of a rigid body can be described by an orthogonal matrix and that the resultant rotation of successive rotations can be represented by the product of such matrices.

ISSN:0093-7002    

出版商:OVID    

年代:1974

数据来源: OVID

摘要:

The availability of materials suitable for lathe cut manufacturing has provided the Australian contact lens practitioner with an excellent opportunity to research and fit hydrophilic lenses. Generally the trend has been to fit smaller and thinner or aspheric lenses and Hydron has been the most widely used material.

ISSN:0093-7002    

出版商:OVID    

年代:1974

数据来源: OVID

摘要:

The purpose of this study was to clinically evaluate the merits of an aspheric front surface contact lens. Subjects were selected on the basis of a manifested residual astigmatism with reduced visual acuity through conventional spherical contact lenses. The subjects were then fitted with the experimental lens. An analysis of the data indicated that there was a mean increase of 6.54 percent Snell-Sterling visual efficiency. It was found that with the experimental lens there were statistically significant improvements in visual acuity (p

ISSN:0093-7002    

出版商:OVID    

年代:1974

数据来源: OVID

摘要:

Patients with reduced vision are often fitted with low vision optical aids. Such patients may also benefit from one or more non-optical aids such as pin-boles, typoscopes, stenopaic slits, visors, or large print books. Such patients may also benefit by advice regarding such factors of the environment as illumination.

ISSN:0093-7002    

出版商:OVID    

年代:1974

数据来源: OVID

摘要:

Tear film breakup time (BUT) and location were determined in 100 young men. BUT ranged from 10 seconds to over 60 seconds. The desiccated locations were randomly distributed over the entire corneal surface, and appeared most often temporally or inferiorly as a dot or a streak.

ISSN:0093-7002    

出版商:OVID    

年代:1974

数据来源: OVID

摘要:

This paper describes the findings in a family with coralliform cataract. Three generations of family members were examined. All had normal vision. Two different types of opacifications were noted.This family had a tendency toward diabetes which suggests that metabolic disturbances may be an etiological factor. If so, thorough physical, as well as visual examinations should be performed on all members of the immediate family when coralliform cataract is present in one family member.

ISSN:0093-7002    

出版商:OVID    

年代:1974

数据来源: OVID

摘要:

In the 4 diopter prism test, two additional types of subjects with atypical response type I are discussed.

ISSN:0093-7002    

出版商:OVID    

年代:1974

数据来源: OVID

摘要:

Why do some students perform in optometry school at a very different level than one would expect from their preoptometry achievement? Students entering with below average preoptometry grades, and who subsequently performed at high levels in optometry, were found to be distinguished from their peers on certain, measurable personality characteristics, including an unusual ability to interact effectively with others and a strong motivation to achieve. Reluctance to accept responsibility, unconventionality, and below average achievement motivation characterized students who entered with high grades and then performed at a low level in optometry. The findings point to the importance of understanding – and assessing – individuals' motivation and other personal qualities prior to admission.

ISSN:0093-7002    

出版商:OVID    

年代:1974

数据来源: OVID

ISSN:0093-7002    

出版商:OVID    

年代:1974

数据来源: OVID