PubMed Health⌕ Search

SEARCH · PubMed Health

Results for “PRESBYOPIA”

Explore indexed PubMed citations for clinical trials, systematic reviews and public health research. Read source abstracts and follow each citation to its original PubMed record.

Quote a phrase for an exact phrase match. Source license links do not imply unrestricted reuse.

At least 811 records · Page 45Linked to original sources
PubMed1988

The Tangent Streak rigid gas permeable bifocal contact lens.

An in-office clinical investigation to determine the fitting success rate and frequency and reasons for lens performance failure was conducted, using the Tangent Streak, a new rigid gas permeable bifocal contact lens. The patient population consisted of 34 highly screened presbyopic patients qualifying for a translating bifocal lens. The results revealed nearly 60% of all eyes were fitted successfully with the first lens ordered and an additional 22.4% met success criteria after a second lens order, for a total of 82.1% success. The average number of lenses needed to attain success was calculated to be 1.8 lenses per eye. Analysis of reasons for lens reorder, and frequency and types of lens modification is also summarized, and provides added information regarding the "customized" nature of this specialty lens.

Adult↗
PubMed1988

Clinicolegal considerations of monovision.

Patients who wear monovision contact lenses must be carefully selected, properly fitted, and adequately informed of the risks of reduced visual acuity and stereopsis. A demonstration of the visual effects of monovision should be used to determine the adaptability of patients to this form of lens wear, and patients should be advised to undergo a gradual adaptation to their lenses. Negligence in the prescribing, fitting, follow-up of these patients can create liability for the contact lens practitioner. Patients must be warned of the risks of monovision lens wear, as required by the doctrine of informed consent, and these warnings should be documented, either by making entries in the patient's record or through the use of forms. Contact lens prescriptions should include all the information necessary to ensure that replacement lenses are the same parameters as those prescribed.

Contact Lenses↗
PubMed1987

A critical view of presbyopic add determination.

From a previous study at the Optometric Center of Fullerton, it was found that 17.5% of the review clinic population returned due to improper presbyopic reading adds. The population sample for the present study consisted of patients between 40-60 years of age who returned to the clinic between September 1983 and May 1985 due to improper add power. The add power originally prescribed was compared to each of four commonly used methods of add power determination. Our results indicate that the age expected add powers account for the fewest errors while the binocular cross cylinder the most. Upper and lower limits for an acceptable range of add powers versus age were determined.

Age Factors↗
PubMed1987

Monovision vs. aspheric bifocal contact lenses: a crossover study.

Twenty selected presbyopic patients were fitted with both monovision correction and Hydrocurve bifocal contact lens correction in a crossover study. Eighty percent of the population preferred bifocal correction and 20% preferred monovision. The results suggest that bifocal contact lens correction should be explored prior to considering monovision correction.

Consumer Behavior↗
PubMed1986

Amplitude of accommodation: population and methodological differences.

A literature survey of amplitudes of accommodation in various countries is presented. Results of push-up and minus-lens determination of 447 patients in Nigeria are compared with previous results. A smaller decrement in amplitude due to temperature than previously accepted is suggested.

Accommodation, Ocular↗
PubMedDate not supplied

[Use of placental suspensions in geriatric practice].

A number of scientifically substantiated indications of the application of placental suspension in man of higher age, the positive results of the studies of the effectiveness of placental therapy on metabolic processes and physiological functions of the aging organism, and the experience won in the application of placental suspension in the complex therapy of some diseases frequently occurring at old age allow us to consider this kind of treatment an effective therapy and thus to recommend tissue therapy with a placental suspension for the introduction into geriatric practice.

Aged↗