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

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

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:

AbstractEye movement auditory biofeedback was used in weekly training sessions to control nystagmus in five adult patients. Within the 1st hr of training, all patients were able to reduce nystagmus. Average maximum group reduction of nystagmus amplitude, peak slow-phase velocity, and frequency achieved during training with auditory biofeedback was 82, 86, and 34%, respectively. At periodic intervals during training, audio information was withheld and patients were able to maintain reduced nystagmus for several minutes. In addition, patients were able to reduce nystagmus upon command without audio cues but with conscious effort while engaging in conversation and other tasks with the experimenters. Visual acuity improvement with conscious patient effort to control nystagmus but without auditory biofeedback averaged 10% Snell-Sterling. One of two patients who returned for post-training reevaluation was able to reduce his nystagmus quickly without auditory biofeedback to 50% of the pretraining level, and both patients were able with the aid of auditory cues to reduce their nystagmus rapidly to the level achieved during training. In addition to the improvement in vision, cosmetic and psychological benefits accrued. Eye movement auditory biofeedback should be considered in the treatment of nystagmus, either alone or in conjunction with orthoptic and/or surgical procedures.

ISSN:0093-7002    

出版商:OVID    

年代:1982

数据来源: OVID

摘要:

AbstractIntracardiac injection of 15 μm microspheres labeled with85Sr (strontium) and141CE (cerium) were used to determine ocular blood flow in seven rabbits before and 25 min after bilateral application of tropicamide to the cornea. By using two different isotopes distinguishable under gammaspectrometry, each animal served as its own control. After administration of two drops of 1 % tropicamide, no significant difference in blood flow between treated and untreated eyes was observed.

ISSN:0093-7002    

出版商:OVID    

年代:1982

数据来源: OVID

摘要:

AbstractThe ability of the person with low vision to achieve successful orientation and mobility depends on residual vision, age of onset of visual impairment, posture and balance, intelligence, body image, auditory-tactile abilities, and personality. This study assesses the role of the residual vision and looks in particular at visual fields, spatial contrast sensitivity, and visual acuity. Correlation coefficients indicate that, for low vision patients, spatial contrast sensitivity and visual fields each have more influence on orientation-mobility than does visual acuity.

ISSN:0093-7002    

出版商:OVID    

年代:1982

数据来源: OVID

摘要:

AbstractThis paper discusses nine common Stereoacuity tests. It presents a logarithmic scale designed to facilitate clinical evaluation of their ranges and a comparison of findings between tests. Tables of the target values of some of the individual tests conducted at varying distances allow an increase in the range of each test. Some of the clinical questions that exist in the area of Stereoacuity testing are discussed.

ISSN:0093-7002    

出版商:OVID    

年代:1982

数据来源: OVID