Results 11 to 20 of about 4,154 (236)

Non-contact retinal photocoagulation using the volk +90 dioptre lens [PDF]

open access: bronzeEye, 1988
The Volk +90 dioptre lens offers a stereoscopic, wide-field (60 degrees) retinal view without the disadvantage of contact funduscopy. Used in conjunction with the slit-lamp, the lens gives a bright, inverted, magnified image of the posterior segment.
R Bates, David Wong, Paul Bloor
openalex   +4 more sources

One-dioptre toric IOL versus spherical IOL in eyes with low preoperative corneal astigmatism [PDF]

open access: hybridInternational Ophthalmology, 2022
Abstract Purpose To investigate the advantages/disadvantages of a 1.0 D toric IOL vs spherical IOL after regular phacoemulsification in eyes with preoperative astigmatism ≤ 1 D. Methods Retrospective comparative series involving pseudophakic eyes with preoperative ...
Carlo Bellucci   +6 more
openalex   +4 more sources

An extreme 8.0‐dioptre myopic shift with malignant glaucoma [PDF]

open access: bronzeActa Ophthalmologica Scandinavica, 2006
Freda Sii, Peter Shah
openalex   +2 more sources

Smartphone fundoscopy with 20 dioptres lens: our experience [PDF]

open access: bronzeRomanian Journal of Ophthalmology
Objective: Assessment of the utility of smartphone fundoscopy in diagnosing posterior pole pathologies. Methods: An iPhone 12 and a 20D Volk lens were used for smartphone fundoscopy. Patients needing bedside consultation were examined with direct ophthalmoscopy and smartphone fundoscopy.
David-Ionuț Beuran   +2 more
openalex   +3 more sources

Biomicroscopic examination of the ocular fundus with a +150 dioptre lens. [PDF]

open access: bronzeBritish Journal of Ophthalmology, 1990
This article describes the design of a +150 dioptre compound lens for biomicroscopic examination of the fundus. To compare the lens with other fundal examination techniques a method is described for measuring the magnification and vertical angle of view of the various examination lenses. By this method the +150 dioptre lens is shown to have an angle of
N. B. Lee
openalex   +4 more sources

UNE MODÉLISATION NUMÉRIQUE DU DIOPTRE ACOUSTIQUE LIQUIDE SOLIDE

open access: greenLe Journal de Physique Colloques, 1990
Nous présentons une modélisation numérique de la diffusion acoustique par un prisme solide plongé dans un liquide.
J. LAURENS
openalex   +4 more sources

Optic disc height measurement with the Zeiss 4-mirror contact lens and 78 dioptre lens compared [PDF]

open access: bronzeEye, 1996
Measurements of optic disc diameter with the Zeiss 4-mirror contact lens and 78 dioptre (D) lens, made by projecting a slit-beam of known height onto the image of the disc, were compared with planimetric measurements in 30 eyes. The 78 D lens measurements were significantly larger than both the Zeiss lens and planimetric measurements (p < 0.0001 and p =
A F Spencer, S A Vernon
openalex   +3 more sources

Influence of peripheral corneal relaxing incisions during cataract surgery for corneal astigmatism up to 2.5 dioptres on corneal densitometry [PDF]

open access: bronzeEye, 2019
To assess the effect of peripheral corneal relaxing incisions (PCRI) for astigmatism between 0.75 and 2.5 dioptres during cataract surgery on corneal densitometry (CD).In this prospective, randomised study, 80 eyes (80 patients), received either tIOL or PCRI.
Ieva Zukaite   +3 more
openalex   +3 more sources

Two-year observation of posterior corneal elevations after small incision lenticule extraction (SMILE) for myopia higher than −10 dioptres [PDF]

open access: hybridBritish Journal of Ophthalmology, 2019
AimTo investigate the change in posterior corneal elevations (PCEs) of eyes with extremely high myopia 2 years after small incision lenticule extraction (SMILE).MethodsWe evaluated 39 eyes of 39 patients with spherical equivalent higher than −10.00 dioptres (D).
Xueyi Zhou   +6 more
openalex   +3 more sources

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