Slit lamp indirect ophthalmoscopy

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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CONDENSING LENS ON BINOCULAR INDIRECT OPHTHALMOSCOPY AND SLIT-LAMP BIOMICROSCOPY

International Journal of Retina ◽

10.35479/ijretina.2019.vol002.iss002.76 ◽

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.

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Mechanical exposure of ophthalmic surgeons: a quantitative ergonomic evaluation of indirect ophthalmoscopy and slit-lamp biomicroscopy

Canadian Journal of Ophthalmology ◽

10.1016/j.jcjo.2016.09.011 ◽

2017 ◽

Vol 52 (3) ◽

pp. 302-307 ◽

Cited By ~ 7

Author(s):

Conrad Shaw ◽

Rabia Bourkiza ◽

Louisa Wickham ◽

Ian Mccarthy ◽

Cordelia Mckechnie

Keyword(s):

Slit Lamp ◽

Indirect Ophthalmoscopy ◽

Slit Lamp Biomicroscopy ◽

Ergonomic Evaluation

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Unwanted reflections during slit lamp assisted binocular indirect ophthalmoscopy

Journal of Modern Optics ◽

10.1080/09500340.2011.599499 ◽

2011 ◽

Vol 58 (19-20) ◽

pp. 1848-1856 ◽

Cited By ~ 1

Author(s):

Matthew Sheehan ◽

Alexander Goncharov

Keyword(s):

Slit Lamp ◽

Indirect Ophthalmoscopy

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Effects of daily curve and age on intraocular pressure in Criollo horses

Semina Ciências Agrárias ◽

10.5433/1679-0359.2021v42n3supl1p2049 ◽

2021 ◽

pp. 2049-2056

Author(s):

Ângela Beatriz de Oliveira Bacchin ◽

◽

Géssica Maria Ribeiro da Silva ◽

Maiara Poersch Seibel ◽

Alessandra Fernandez da Silva ◽

...

Keyword(s):

Intraocular Pressure ◽

Age Group ◽

Slit Lamp ◽

Group Iii ◽

Indirect Ophthalmoscopy ◽

Group I ◽

Schirmer Tear Test ◽

Significant Difference ◽

The Mean ◽

Made In

The objective of this study was to evaluate the intraocular pressure (IOP) of healthy Criollo horses using a rebound tonometer throughout the day. In addition, assessments were made in horses of different ages. Twenty-seven horses, male and female, were divided into three groups by age: Group I (3-5 years old), Group II (6-8 years old), and Group III: (9-16 years old). Ophthalmic examinations were performed using the Schirmer tear test, slit-lamp biomicroscopy, fluorescein test and indirect ophthalmoscopy. Seven measurements of IOP were assessed on the same day (at 6:00 am, 9:00 am, 12:00 am, 3:00 pm, 6:00 pm, 9:00 pm and 00:00 pm). A t-test was used when there were two groups of comparisons and ANOVA was used to detect differences in IOP between measurement times and between age categories. The average IOP was 28.4 ± 3.7 mmHg for all eyes. The mean IOP for Groups I, II and III were 29.2 ± 3.5, 28.4 ± 4.3 and 27.7 ± 3.2 mmHg, respectively. There was no statistically difference between right and left eyes. There was a significant difference between Group I and Group III (P = 0.008). There were no statistically significant differences between measurements recorded at different times of the day (P = 0.560). The IOP was not influenced by the circadian rhythm, but older horses showed reduced IOP.

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Late-onset malignant glaucoma

Latin American Journal of Ophthalmology ◽

10.25259/lajo_19_2019 ◽

2020 ◽

Vol 3 ◽

pp. 1

Author(s):

Ramiro José Daud ◽

Horacio Freile ◽

Mauricio Freile ◽

Soledad Mariano

Keyword(s):

Intraocular Pressure ◽

Case Report ◽

Acute Pain ◽

Late Onset ◽

Slit Lamp ◽

Normal Range ◽

Slit Lamp Examination ◽

Complete Occlusion ◽

Malignant Glaucoma ◽

The Right

A case report on a 49-year-old female with diagnoses of ocular hypertension in her left eye (LE) treated with 250 mg/day acetazolamide for 2 years. During the slit-lamp examination, complete occlusion of both iridocorneal angles was detected. Intraocular pressure (IOP) was 10 and 35 mmHg in the right eye and LE, respectively. Phacotrabeculectomy was performed in the LE. After 1 month of the procedure, the patient developed a slowly progressive miopization from −1 to −3 diopters (D) the following months. Approximately 3 months after surgery, the patient developed an episode of acute pain, athalamia, and IOP 45 mmHg in her LE. Late-onset malignant glaucoma was suspected and the patient was treated with topical hypotensive and cycloplegic agent until a prompt vitrectomy was performed. Deepening of the anterior chamber and restoration of IOP to normal range was obtained after surgery.

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Cataract. Diagnostic errors at referring patients to surgery

10.25276/978-5-94289-028-5 ◽

2020 ◽

Author(s):

V.V. Egorov ◽

◽

E.L. Sorokin ◽

G.P. Smoliakova ◽

O. V. Kolenko ◽

...

Keyword(s):

Clinical Diagnosis ◽

Diagnostic Errors ◽

Ophthalmological Examination ◽

Slit Lamp ◽

Critical View ◽

Optical Media

The textbook examines the most common diagnostic errors of ophthalmologists when making a clinical diagnosis of "cataract". Clinical examples point to a more critical view of the cataract diagnosis. Due to the fact that most of the errors are based on a superficial examination of the eye, clear recommendations are given for conducting a clinical ophthalmological examination of cataracts. At the same time, special attention is paid to the types of examination of the lens with the help of a slit lamp, to the peculiarities of performing various types of ophthalmoscopy with moderate opacity of optical media.

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