scholarly journals Functional slit lamp biomicroscopy for imaging bulbar conjunctival microvasculature in contact lens wearers

2014 ◽  
Vol 92 ◽  
pp. 62-71 ◽  
Author(s):  
Hong Jiang ◽  
Jianguang Zhong ◽  
Delia Cabrera DeBuc ◽  
Aizhu Tao ◽  
Zhe Xu ◽  
...  
Keyword(s):  
Contact Lens ◽  
Slit Lamp ◽  
Slit Lamp Biomicroscopy

Optic Disc Measurements with the 78 Diopter Lens, Zeiss 4-Mirror Contact Lens and Computerized Image Analysing System

1998 ◽  
Vol 8 (1) ◽  
pp. 22-27 ◽  
Author(s):  
A. Akman ◽  
O. Oram ◽  
P. Aydin
Keyword(s):  
Image Analysis ◽  
Optic Disc ◽  
Contact Lens ◽  
Slit Lamp ◽  
Disc Diameter ◽  
Computerized Image Analysis ◽  
Optic Disc Size ◽  
Disc Size ◽  
Slit Lamp Biomicroscopy

We evaluated the 78 diopter (D) lens and Zeiss 4-mirror lens for the measurement of vertical and horizontal optic disc diameters during slit-lamp biomicroscopy and compared the results with the measurements made with the computerized image analysing system (IMAGEnet 640, Topcon, Japan) in 30 eyes of 30 patients. The 78D lens and Zeiss 4-mirror lens measurements both correlated well with the computerized image analysis measurements (r=0.881 for vertical and r=0.895 for horizontal disc diameter measurements with the 78D lens and r=0.883 for vertical and r=0.891 for horizontal disc diameter measurements with the Zeiss 4-mirror lens). The 78D lens measurements overestimated vertical disc diameter by 5.3% and horizontal disc diameter by 4.4%. The Zeiss 4-mirror lens underestimated the vertical disc diameter by 2.4% and horizontal disc diameter by 2.2%. Thus either lens can be used for a quick estimation of the optic disc size, since the results correlate well with the computerized image analysis measurements.

Visual acuity, spectacle blur and slit-lamp biomicroscopy on asymptomatic contact-lens-wearing recruits

1983 ◽  
Vol 221 (2) ◽  
pp. 73-77 ◽  
Author(s):  
A. J. P. Rouwen ◽  
A. J. L. G. Pinckers ◽  
A. A. I. v't Pad Bosch ◽  
H. Punt ◽  
W. H. Doesburg ◽  
...  
Keyword(s):  
Visual Acuity ◽  
Contact Lens ◽  
Slit Lamp ◽  
Slit Lamp Biomicroscopy

scholarly journals Spectral-domain optical coherence tomography for evaluating palisades of Vogt in ocular surface disorders with limbal involvement

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Ying-Yi Chen ◽  
Yi-Chen Sun ◽  
Chia-Ying Tsai ◽  
Hsiao-Sang Chu ◽  
Jo-Hsuan Wu ◽  
...  
Keyword(s):  
Optical Coherence Tomography ◽  
Ocular Surface ◽  
Spectral Domain ◽  
Optical Coherence ◽  
Slit Lamp ◽  
Ocular Rosacea ◽  
Unilateral Disease ◽  
Healthy Eyes ◽  
Slit Lamp Biomicroscopy ◽  
Sd Oct

AbstractSpectral-domain optical coherence tomography (SD-OCT) has been used to observe the morphology of the palisades of Vogt (POV) with satisfactory resolutions. In this study, we used SD-OCT to examine the microstructure of the POV in ocular surface disorders with limbal involvement. We detect subclinical limbal pathologies based on five parameters, including (1) decreased epithelial thickness, (2) loss of the sharp stromal tip, (3) loss of the smooth epithelial-stromal interface, (4) dilated stromal vessels, and (5) decreased POV density. Eighteen eyes of 10 patients with advancing wavelike epitheliopathy (AWE) and 15 eyes of 9 patients with phlyctenular keratitis/ocular rosacea were recruited. SD-OCT could detect abnormal changes in the POV in 100% of the lesion sites. In presumed-healthy areas of the diseased eyes diagnosed by slit-lamp biomicroscopy, SD-OCT detected abnormal changes in the POV in 100% of the eyes in both groups. In patients with unilateral disease, abnormal changes in the POV were detected by SD-OCT in 50% and 100% of presumed-healthy eyes diagnosed by slit-lamp biomicroscopy in the AWE group and phlyctenular keratitis/ocular rosacea group, respectively. SD-OCT is powerful in detecting POV changes in ocular surface disorders and can provide useful information that cannot be provided by slit-lamp biomicroscopy.

Recently Recognized Cases of Ophthalmofilariasis in Hungary

2009 ◽  
Vol 19 (4) ◽  
pp. 675-678 ◽  
Author(s):  
Eszter Fodor ◽  
Éva Fok ◽  
Erika Maka ◽  
Olga Lukáts ◽  
Jeanette Tóth*
Keyword(s):  
Clinical Presentation ◽  
High Index ◽  
Dirofilaria Repens ◽  
The Other ◽  
Slit Lamp ◽  
The Past ◽  
Red Eye ◽  
High Index Of Suspicion ◽  
Slit Lamp Biomicroscopy

Purpose To report four cases of zoonotic ophthalmodirofilariasis infection caused by Dirofilaria repens in Hungary. Methods Four cases of ophthalmofilariasis have been treated at our department during the last 14 months. A subconjunctival moving worm was observed by slit lamp biomicroscopy in two cases. In one of these a living filaria was surgically removed, but the other disappeared. Red eye and migrating edema were the presenting signs in two cases. A biopsy taken from the subcutaneous masses disclosed D repens. Results Histopathologic or parasitologic examination identified a female D repens in every case. Laboratory alterations were not found. Symptoms subsided after treatment. Conclusions The clinical presentation of filariasis is not always straightforward, and a high index of suspicion is necessary in cases presenting with orbital or periorbital inflammation. During the past 10 years the identification of locally acquired infections by D repens has increased in Hungary.

scholarly journals Fluoro-siloxanyl Styrene Rigid Gas Permeable Contact Lens Fabric characteristics and outcomes with extended use on animal model cornea

2019 ◽  
Vol 70 (11) ◽  
pp. 4003-4006
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Animal Model ◽  
Medical Device ◽  
Contact Lens ◽  
Slit Lamp ◽  
Fda Approval ◽  
Histological Data ◽  
Lens Surface ◽  
Scanning Electron

In this paper, we report the relation between fabric characteristics and animal model cornea modifications associated with extended use of fluoro-siloxanyl styrene rigid gas permeable contact lens. Siloxanyl styrene and fluoromethacrylate rigid gas permeable contact lens is a newly designed optical medical device used in orthokeratology with an FDA approval of continuous wear for up to 30 days. To assess the influence on the cornea an animal model was used and histological data were collected. Scanning electron microscopy (SEM) was performed on the used lenses. Our conclusions concedes that with respects of the material, doctor’s slit lamp lens observation on regular basis should be considered as surface debris and lens scratches can influence the cornea in extended wear. Keywords: siloxanyl styrene and fluoromethacrylate, rigid gas permeable contact lens, surface debris, extended

scholarly journals Measurement variability of the bulbar conjunctival microvasculature in healthy subjects using functional slit lamp biomicroscopy (FSLB)

2015 ◽  
Vol 101 ◽  
pp. 15-19 ◽  
Author(s):  
Zhe Xu ◽  
Hong Jiang ◽  
Aizhu Tao ◽  
Shuangqing Wu ◽  
Wentao Yan ◽  
...  
Keyword(s):  
Healthy Subjects ◽  
Slit Lamp ◽  
Measurement Variability ◽  
Slit Lamp Biomicroscopy

scholarly journals Method to quantify the decentration of the multifocal intraocular lenses in relation to the visual axis

2018 ◽  
Vol 17 (4) ◽  
pp. 117-119
Author(s):  
Fernando Eduardo Polit
Keyword(s):  
Intraocular Lens ◽  
Qualitative Method ◽  
Visual Quality ◽  
Intraocular Lenses ◽  
Slit Lamp ◽  
Visual Axis ◽  
Light Reflex ◽  
Multifocal Intraocular Lenses ◽  
Real Value ◽  
Slit Lamp Biomicroscopy

Since position and centration have shown to affect the effectiveness of multifocal intraocular lenses (MFIOLs), some authors have proposed using the "coaxially sighted IOL light reflex" as a landmark to allow consistent centration of MFIOLs. Postoperatively, assessing the location of the intraocular lens with respect to the visual axis is also important. Centration of the MFIOLs can be identified postoperatively by slit lamp biomicroscopy, but it is still a qualitative method. The Nidek OPD Scan III is used. The instrument obtains retro illumination images, which allows the observation of the diffractive rings of the multifocal intraocular lenses implanted following phacoemulsification. The retro illumination image describes the location of the visual axis (white cross with blue borders +), the center of the photopic (pink cross) and mesopic (turquoise cross) pupil, quantifies the distance between the center of the pupil and the visual axis, and places the visual axis in degrees. It is attempted to match the rings of the lens with that of the acetate grid. Once the best possible equidistance between the lens and grid rings has been achieved. This method can be useful to be able to have reference of a real value of decentration of the lenses and thus have a surgical plan and try to center the lenses. We are also creating a technique to properly center the lenses, in addition to performing an analysis of the results in terms of postoperative visual quality in relation to the lens's decentration and thus see how this really affects.

Sign in / Sign up

Export Citation Format

Share Document