Prisms in the treatment of diplopia with strabismus of various etiologies

Anilkumar, S.; Narendran, Kalpana

doi:10.4103/ijo.ijo_939_21

Cited by 5 publications

(4 citation statements)

References 8 publications

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“…Diplopia may be treated with an occluding spectacle or contact lens,[ 41 ] by generating ptosis with botulinum toxin. [ 42 ] The use of Fresnel's prism over the paretic eye or non-dominant eye helps eliminate binocular diplopia at the behest of mild blurring of vision.…”

Section: Anagementmentioning

confidence: 99%

“…[ 42 ] The use of Fresnel's prism over the paretic eye or non-dominant eye helps eliminate binocular diplopia at the behest of mild blurring of vision. [ 41 ] The use of topical pilocarpine can alleviate photophobia and can give temporary cosmetic benefits to individuals bothered by severe anisocoria. Surgical intervention is recommended when diplopia remains static or does not improve even after 6 months to a year of appropriate treatment.…”

Section: Anagementmentioning

confidence: 99%

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Oculomotor cranial neuropathies: Diagnosis and management

Shree¹,

Mahesh²,

Balaini³

et al. 2022

Ann Indian Acad Neurol

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Ocular nerve palsies are among the most common cranial neuropathies in neurological practice. Nerves can get affected anywhere along their path from the brainstem to the orbit. There can be isolated involvement of multiple cranial nerves together. The etiologies differ according to the type of presentation. The steps toward the diagnosis need to be strategically planned and must be based on clinical localization. It is crucial to make proper localization to plan further investigations and thus treatment of the etiology. This review covers the approach toward the diagnosis, etiologies involved, and management of ocular cranial neuropathies.

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Section: Anagementmentioning

confidence: 99%

Section: Anagementmentioning

confidence: 99%

Oculomotor cranial neuropathies: Diagnosis and management

Shree¹,

Mahesh²,

Balaini³

et al. 2022

Ann Indian Acad Neurol

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“…Sometimes it is used as an adjunct to surgical therapy [22]. The next method is prism correction, which can be considered as an initial management in patients with a wide range and variety of etiologies of ocular deviations, including larger and mixed strabismus [23]. In children, they are usually prescribed for deviations < 20 PD.…”

Section: Introductionmentioning

confidence: 99%

Usefulness Assessment of Automated Strabismus Angle Measurements Using Innovative Strabiscan Device

Grudzińska,

Durajczyk,

Grudziński

et al. 2024

JCM

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Background: The variability of the obtained results of manual tests assessing the angle of strabismus depends on the experience, skills, and training of the examiner. The authors hope that this new measuring device will provide a more sensitive and repeatable method for detecting small strabismus angles compared to the gold standard—PCT. The purpose of this article is to present an innovative strabismus angle demonstration device, called Strabiscan, to provide automated measurements of eye deviation and to compare the obtained results of these measurements to the traditional manual method. Methods: For patients with manifest strabismic disease (n = 30) and a group of healthy subjects (n = 30), a detailed history was taken and routine ophthalmologic examinations were performed, including best-corrected distance visual acuity, assessment of refractive error using an autorefractometer after cycloplegia, biomicroscopic evaluation of the anterior segment of the eye and evaluation of the eye fundus by indirect ophthalmoscopy. Subsequently, each patient and healthy subject was subjected to a prismatic cover–uncover test using a manual method, after which the presence of strabismus was detected and its angle assessed using a Strabiscan demonstration device. Results: In the control group using the Strabiscan demonstration device, small-angle latent strabismus ≤ 3DP was diagnosed in 83% of patients, while >3DP was found in 13%. In contrast, using the prismatic cover–uncover test, latent strabismus ≤ 3DP was diagnosed in only 13% of patients, and latent strabismus with an angle > 3DP was found in 13% of patients. No statistically significant differences were noted in the measurements of strabismus angles made by the different methods. Conclusions: The Strabiscan demonstration device allows quick and accurate assessment of the strabismus angle. Compared to the prismatic cover–uncover test, it has a higher sensitivity for detecting low-angle latent strabismus. Measurements with the Strabiscan do not require the presence of additional assistants for the test.

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“…Techniques to measure and treat combined horizontal and vertical strabismus with a temporary prism have been described by others (Anilkumar and Narendran 2022;Kortvelesy 2008). These earlier methods involve quantifying the vertical and horizontal components of the deviation using prism and alternate cover testing (PACT), and then applying the Pythagorean theorem to calculate a diagonal, oblique prism equivalent.…”

Section: Introductionmentioning

confidence: 99%

Non-Surgical Treatment of Symptomatic, Oblique Strabismus: A Simplified Approach

Christoff

2023

British and Irish Orthoptic Journal

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Purpose: Determining the correct power and orientation of prism to be prescribed for patients with symptomatic, oblique-angle strabismus can be challenging and confusing, prone more to clinician gestalt than science or methodology. The author shares a simplified, approach not previously described in the scientific literature that utilizes commercially available equipment and freely available on-line prism calculators for choosing the correct Press-On™ prism power, positioning the prism correctly on the spectacle lens, and ultimately determining the correct prism prescription to be incorporated into the patient's spectacles.

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Prisms in the treatment of diplopia with strabismus of various etiologies

Cited by 5 publications

References 8 publications

Oculomotor cranial neuropathies: Diagnosis and management

Oculomotor cranial neuropathies: Diagnosis and management

Usefulness Assessment of Automated Strabismus Angle Measurements Using Innovative Strabiscan Device

Non-Surgical Treatment of Symptomatic, Oblique Strabismus: A Simplified Approach

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