scholarly journals Validation of a portable, non-mydriatic fundus camera compared to gold standard dilated fundus examination using slit lamp biomicroscopy for assessing the optic disc for glaucoma

Eye ◽  
2021 ◽  
Author(s):  
Swati Upadhyaya ◽  
Anushri Agarwal ◽  
Venkatesh Rengaraj ◽  
Kavitha Srinivasan ◽  
Paula Anne Newman Casey ◽  
...  
Keyword(s):  
Optic Disc ◽  
Gold Standard ◽  
Fundus Examination ◽  
Slit Lamp ◽  
Fundus Camera ◽  
Slit Lamp Biomicroscopy

Study of Occurrence of Cataract and their Surgical Management in Dogs

2021 ◽  
Author(s):  
Benudhar Mahanand ◽  
Jayakrushna Das
Keyword(s):  
Fundus Examination ◽  
Slit Lamp ◽  
Small Incision Cataract Surgery ◽  
Fundus Camera ◽  
Small Incision ◽  
Pupillary Light ◽  
Maze Test ◽  
Different Types ◽  
Schiøtz Tonometry ◽  
Indirect Ophthalmoscope

Background: Present study investigated the occurrence of cataract in dogs presented to the Teaching Veterinary Clinical Complex (TVCC) and Department of Veterinary Surgery and Radiology under Odisha University of Agriculture and Technology, Bhubaneswar during a period of four months. During the study period, a total number of 3847 canine cases were registered at TVCC, out of which 23 cases registered under the RKVY project for different types of ophthalmic affections. There were only eight canine cataract cases with overall prevalence of 0.2% among total canines presented to TVCC and 34.78% of total canines presented with some sorts of ophthalmic affections. Methods: Menace reflex, pupillary light reflex, maze test, obstacle test, catoptrics test, Schirmer’s tear test (STT), Schiotz tonometry, Slit lamp bio microscopy and fundus examination -using indirect ophthalmoscope (IO) and fundus camera, were carried out in all the cases studied. Result: Occurrence of cataract was higher in Spitz (50%). Males had more incidences (62.5%) of cataract. The ages of the dogs were less than 10 years. B mode ultra-sonographic (USG) examination revealed increased echogenecity of lens in all cataract affected dogs while corneal opacification was found in two cases. Cataract was extracted by phaco-emulsification in three dogs and by small incision cataract surgery (SICS) technique in one dog.

scholarly journals CONDENSING LENS ON BINOCULAR INDIRECT OPHTHALMOSCOPY AND SLIT-LAMP BIOMICROSCOPY

2019 ◽  
Vol 2 (2) ◽  
Author(s):  
Danang Yoga Wiguna ◽  
Sauli Ari Widjaja ◽  
Wimbo Sasono ◽  
Muhammad Firmansjah ◽  
Ima Yustiarini ◽  
...  
Keyword(s):  
Field Of View ◽  
Fundus Examination ◽  
Portable Instrument ◽  
Fundus Image ◽  
Slit Lamp ◽  
Advantages And Disadvantages ◽  
Illumination System ◽  
Indirect Ophthalmoscopy ◽  
Slit Lamp Biomicroscopy ◽  
Indirect Ophthalmoscope

Condensing lens is a lens used as an auxiliary lens in indirect instruments to examines the fundus. This lens is used with binocular indirect ophthalmoscope and slit-lamp biomicroscope to reach a stereopsis image of fundus. Optical principle of condensing lens is to make the eye in myopic condition, so it can producesa real, aerial, inverted and reversed image. This lens was placed between the instruments and the eye of the patient which located closer to patient’s eye. Optimalized position of the lens can produce a good fundus image. Condensing lens have so many power of dioptre that each power produces different magnification and field of view. High powered lenses produces wider field of view than low powered ones. High powered lens can also used in patient with small dilated pupil and shorter distance of examination. Low powered lenses offer more magnification. Fundus examination with binocular indirect ophthalmoscope and slit-lamp biomicroscope have purpose to produces stereopsis image because of the binocularity system. These two instruments have each advantages and disadvantages. The advantages of binocular indirect ophthalmoscope are a portable instrument, relatively can be used in uncooperative patient and it can be used with scleral indentation to reach more peripheral view of the fundus. Meanwhile slit-lamp biomicroscope has the advantages to offer more magnification and flexible illumination system. With higher powered lens use in biomicroscope, it also give advantages in shorter distance of examination and wider field of view.

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.

Clinical Optic Disc Evaluation in Glaucoma

2012 ◽  
Vol 06 (02) ◽  
pp. 92 ◽  
Author(s):  
Alexandre SC Reis ◽  
Andrew Toren ◽  
Marcelo T Nicolela ◽  
◽  
◽  
...  
Keyword(s):  
Optic Disc ◽  
Retinal Nerve Fibre Layer ◽  
Clinical Test ◽  
Slit Lamp ◽  
Careful Evaluation ◽  
Slit Lamp Examination ◽  
Neuroretinal Rim ◽  
Nerve Fibre Layer ◽  
Slit Lamp Biomicroscopy ◽  
Fellow Eyes

Examination of the optic nerve head (ONH) is essential for the diagnosis of glaucoma and assessment of its progression. Slit-lamp biomicroscopy with a handheld lens is the best method of ONH examination since it provides good stereopsis and magnification. ONH stereo photographs are complementary and may identify findings missed on slit-lamp examination. As a result of its subjective nature, a standardised approach should be utilised for clinical ONH evalaution, including an assessment of ONH size and careful evaluation of the neuroretinal rim contour, the presence of retinal nerve fibre layer (RNFL) defects and optic disc haemorrhages. Other aspects, such as peripapillary chorioretinal atrophy, vessel alterations and asymmetry between fellow eyes, might help differentiate normal from glaucomatous eyes. Progressive changes in the appearance of the ONH or RNFL are best identified with optic disc photographs or automated devices. The findings of clinical ONH evaluation are of greater value when corroborated with other aspects of clinical examination and clinical test.

scholarly journals Optic Disc Hemorrhage after Phacoemulsification in Patients with Glaucoma

2014 ◽  
Vol 2014 ◽  
pp. 1-5 ◽  
Author(s):  
Karine D. Bojikian ◽  
Daniel B. Moore ◽  
Philip P. Chen ◽  
Mark A. Slabaugh
Keyword(s):  
Optic Disc ◽  
Pressure Fluctuations ◽  
Cross Sectional Study ◽  
Clinic Visit ◽  
Optic Disk ◽  
Slit Lamp ◽  
Sectional Study ◽  
Cross Sectional ◽  
Disc Hemorrhage ◽  
Slit Lamp Biomicroscopy

Background. Optic disk hemorrhage is known to be a risk factor for glaucoma progression. Cataract surgery by phacoemulsification results in large intraocular pressure fluctuations. We aim to investigate whether phacoemulsification is associated with optic disc hemorrhage in patients with glaucoma. Methods. This is a retrospective review of consecutive university clinic based glaucoma patients undergoing phacoemulsification alone, with at least 3 visits in the year before and at least 5 visits in the year following phacoemulsification. The presence of optic disk hemorrhage was evaluated with slit lamp biomicroscopy at each clinic visit prior to and following phacoemulsification. Results. We evaluated 158 eyes of 158 subjects; 15 (9.5%) had ODH noted at least once during the 2-year study period. Four eyes had ODH identified on postoperative day 1, for a cross-sectional prevalence of 2.5%. Fourteen ODH episodes were noted preoperatively versus 12 episodes postoperatively (P=0.68). Aspirin use was associated with ODH (P=0.015). Conclusions. Our cross-sectional study found a prevalence of ODH immediately after CE that was similar to other published rates, and our longitudinal study did not find an increase in ODH in the year after phacoemulsification when compared to the year prior to surgery.

Comparison of Photo Slit Lamp and Fundus Camera Photography of the Optic Disc

1979 ◽  
Vol 97 (8) ◽  
pp. 1462-1464
Author(s):  
B. E. Cohan ◽  
A. C. Pearch ◽  
S. A. Anderson
Keyword(s):  
Optic Disc ◽  
Slit Lamp ◽  
Fundus Camera

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.

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