SKILL Fundus examination: slit-lamp indirect ophthalmoscopy

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.

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Study of Occurrence of Cataract and their Surgical Management in Dogs

Indian Journal of Animal Research ◽

10.18805/ijar.b-4235 ◽

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.

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Slit lamp biomicroscopic fundus examination

Diabetic Eye Disease ◽

10.1016/b978-0-7506-3781-7.50015-5 ◽

2000 ◽

pp. 113-117

Author(s):

Alicja Rudnicka

Keyword(s):

Fundus Examination ◽

Slit Lamp

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A clinical and pathological study of inherited glaucoma in New Zealand white rabbits

Laboratory Animals ◽

10.1258/002367782780891679 ◽

1982 ◽

Vol 16 (3) ◽

pp. 234-239 ◽

Cited By ~ 19

Author(s):

Gregory C. Tesluk ◽

Robert L. Peiffer ◽

Doris Brown

Keyword(s):

Congenital Glaucoma ◽

Slit Lamp ◽

Pathological Study ◽

Indirect Ophthalmoscopy ◽

Large Colony ◽

New Zealand White Rabbits ◽

Human Eyes ◽

Slit Lamp Microscopy ◽

Incomplete Cleavage ◽

Scanning Electron

The eyes of 7 rabbits with clinical megaloglobus, selected from a large colony, were studied with slit-lamp microscopy, gonioscopy, indirect ophthalmoscopy and tonometry. Selected light and scanning electron microscopy was also performed. There were 11 glaucomatous eyes among the 7 rabbits: gonioscopy demonstrated open iridocorneal angles with absence of pectinate fibres. Incomplete cleavage of the iridocorneal angles in glaucomatous eyes was noted histologically. Because of the similarity of the iridocorneal angles of glaucomatous rabbit eyes with those of human eyes with congenital glaucoma, these rabbits may serve as an experimental model in the understanding and management of certain types of human glaucoma.

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Ocular Toxocariasis Masquerading as Toxoplasmosis

10.21203/rs.3.rs-264363/v1 ◽

2021 ◽

Author(s):

Sarah Madison Duff ◽

Frances Saccoccio ◽

Nausheen Khuddus ◽

Gibran Syed Khurshid ◽

Jinghua Chen

Keyword(s):

Eye Drops ◽

Fundus Examination ◽

Slit Lamp ◽

Optic Disc Edema ◽

Ocular Toxocariasis ◽

Slit Lamp Examination ◽

Disc Edema ◽

Keratic Precipitates ◽

Oral Corticosteroids ◽

Anterior Chamber Cells

Abstract PurposeTo report panuveitis due to Toxocara, with positive Toxoplasma serology. ObservationA nine-year-old boy presented with a panuveitis, intermittent headaches, and a visual acuity of 20/400 in his left eye. Slit lamp examination showed anterior chamber cells and flare without keratic precipitates (KPs), vitreous cells and veils, and optic disc edema with a blurred fundus view. Initial lab values were positive for toxoplasmosis. Topical cycloplegic and steroid eye drops, in addition to trimethoprim/sulfamethoxazole (TMP/SMX) treatment, was initiated. Four days later, oral corticosteroids were started. As inflammation cleared, the fundus examination showed an inferior tractional detachment, leading to an ultimate diagnosis of ocular Toxocariasis.Conclusion and ImportanceHigh false positives on Toxoplasma serology and diffuse vitritis from toxocariasis limiting retinal visualization may confuse the initial diagnosis.

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OCT Angiography of Persistent Hyaloid Artery: A case report

10.21203/rs.2.9132/v2 ◽

2019 ◽

Author(s):

Hansol Jeon ◽

Jinsoo Kim ◽

Soonil Kwon

Keyword(s):

Blood Flow ◽

Optical Coherence Tomography ◽

Vitreous Hemorrhage ◽

Oct Angiography ◽

Fundus Examination ◽

Healthy Patient ◽

Slit Lamp ◽

Blurred Vision ◽

Case Presentation ◽

Slit Lamp Examination

Abstract Background A persistent hyaloid artery is a rare fetal remnant. Several complications such as amblyopia, vitreous hemorrhage, and retinal detachment have been reported. Here, we present a case of vitreous hemorrhage with a persistent hyaloid artery. Case presentation A healthy 16-year-old male presented with blurred vision in his left eye. Vitreous hemorrhage occurred and absorbed spontaneously. Slit-lamp examination demonstrated a Mittendorf’s dot and fundus examination revealed a persistent hyaloid artery. Optical coherence tomography showed a Bergmeister’s papilla. The blood flow of the persistent hyaloid artery via the Bergmeister’s papilla was found by OCT angiography. Conclusion The persistent hyaloid artery should be considered as a cause of spontaneous vitreous hemorrhage of young healthy patient. The OCT angiography will be a useful noninvasive approach to confirm the patency of the persistent hyaloid artery.

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Live retinal image mosaicking during fundus examination with a computer-assisted slit-lamp prototype

Acta Ophthalmologica ◽

10.1111/j.1755-3768.2013.f029.x ◽

2013 ◽

Vol 91 ◽

pp. 0-0

Author(s):

C GUILLEMOT ◽

R RICHA ◽

E COMUNELLO ◽

A VON WANGENHEIM ◽

JY SCHNITZLER ◽

...

Keyword(s):

Retinal Image ◽

Computer Assisted ◽

Fundus Examination ◽

Slit Lamp ◽

Image Mosaicking

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Slit lamp indirect ophthalmoscopy

Ophthalmic Clinical Procedures ◽

10.1016/b978-0-08-044978-4.50029-0 ◽

2007 ◽

pp. 85-87

Author(s):

Frank Eperjesi ◽

Hannah Bartlett ◽

Mark Dunne

Keyword(s):

Slit Lamp ◽

Indirect Ophthalmoscopy

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Fundus Examination in Pediatric Patients Using Indirect Ophthalmoscopy

10.4018/978-1-7998-8044-8.ch014 ◽

2022 ◽

pp. 281-305

Author(s):

Danielle M. Ledoux ◽

Brandon Johnson ◽

Issac Moradi ◽

Lily Zhu-Tam

Keyword(s):

At Risk ◽

Premature Infant ◽

Retinopathy Of Prematurity ◽

Fundus Examination ◽

Eye Care ◽

Indirect Ophthalmoscopy ◽

Challenging Technique ◽

Standard Classification ◽

Rate Limiting

The goal of this chapter is to provide the clinician with an understanding of binocular indirect ophthalmoscopy (BIO) and helpful clinical techniques for success in examining the fundus of the pediatric patient, including scleral depression. The challenging technique to examine the premature infant at risk for retinopathy of prematurity will be explained in detail, including the standard classification of the disease with photos depicting the different location and stages of disease. BIO with the addition of scleral indentation helps the clinician diagnose and locate lesions that may otherwise go undetected, such as retinal holes, tears, or vitreoretinal adhesions. Complete examination of the fundus of a child is no less important than of any other patient who seeks eye care but often requires efficiency and precision (as well as many human arms). Time is a rate limiting aspect when examining children so preparation and experience will lead to success.

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