Search PubMed⌕ Search

SEARCH · Search PubMed

Results for “INTERFEROMETRY”

Search indexed PubMed citations on genomics, clinical trials, systematic reviews and public health. Explore titles, authors and supplied subject terms, then open the PubMed record.

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

At least 487 records · Page 27Linked to original sources
PubMed1985

[Evaluation of macular functional capacity by helium-neon laser interferometry].

We describe the principles of the measure of visual acuity by using the laser interference retinometer. Interference fringes are projected on the retina, with variation of direction and thickness varied, to study the functional capacity of the macula. This method is particularly useful in patients with cataracts, because it is much less influenced by the clarity of the media than Snellen chart listing. We give the results of a series of 122 eyes with cataract, comparing pre-operative laser acuity and post-operative Snellen visual acuity. The pre-operative interfermometric measure is possible in 77% of the cases, but in most cases of mature cataract or dense posterior subcapsular opacities, the patients do not discern any interference fringes. In immature cataracts according to other results of the literature, post-operative Snellen visual acuity reaches preoperative laser acuity in 60% of the cases, and is better in 29% of the cases. Clinical conditions such as macular degeneration, cystoid macular oedema, amblyopia, visual field cuts through fixation or myopic choroïdopathy, may make the interferometer test unreliable.

Cataract↗
PubMedDate not supplied

[Doppler laser interferometry in the determination of ultrafiltrate consumption].

To evaluate the clinical efficiency of hemodialysis and ultrafiltration monitoring, the consumption and volume of an ultrafiltrate should be timely measured. Balance measurement of changes in a patient's body weight during hemodialysis has a significant methodological error made by patient's body weight changes unassociated with ultrafiltration.

Hemofiltration↗