Optical coherence tomography and scleral contact lenses: clinical and research applications

Vincent, Stephen J.; Alonso‐Caneiro, David; Collins, Michael J.

doi:10.1111/cxo.12814

Cited by 45 publications

(46 citation statements)

References 98 publications

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“…Studies have shown that the curvature of the anterior sclera is significantly steeper temporally compared with nasally, with substantially less variation between the nasal, superior and inferior quadrants. 12,14,15 A steeper scleral curvature is associated with higher values of sagittal height (less elevated scleral surface), whereas the flatter curvature is associated with lower values of sagittal height (more elevated scleral surface). The scleral curvature varies with the ocular meridian examined, the distance from the limbus, age and so forth.…”

Section: Scleral Curvaturementioning

confidence: 99%

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Scleral topography and its usefulness in scleral lens fitting

Mabaso

Sithole

2021

African Vision and Eye Health

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Background: Scleral lenses are one of the best options to manage corneal irregularities and severe ocular surface diseases. As scleral lenses rest on the sclera, scleral topographical data are necessary when fitting these lenses.Aim: The aim of this article was to present a review of the literature on scleral topography and its usefulness in scleral lens fitting.Method: A search was performed by the author with the PubMed database for the literature related to the topic by using a combination of keywords as search criteria. The most specific combination was represented by the junction of keywords (scleral topography and scleral lens fitting). Forty-four articles were related to scleral topography and scleral lens fitting.Results: Fifteen articles were found to be more relevant to the topic and were selected for review. These articles originated from 11 different countries and five continents. Many (60%) of the articles were from European countries.Conclusion: The shape of the anterior surface of the eye beyond the limbus is not rotationally symmetrical, and the asymmetry increases as we move away from the limbus. Scleral topography is important in the fitting of scleral lenses, especially that keratometry measurements cannot be used to predict the base curve of the best fitting scleral lens.

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Section: Scleral Curvaturementioning

confidence: 99%

“…The scleral curvature varies with the ocular meridian examined, the distance from the limbus, age and so forth. 12 Despite the marked variations of the scleral curvature between ocular meridians and the distance from the limbus, many patients are successfully fitted with rotationally symmetric lens designs. 12…”

Section: Scleral Curvaturementioning

confidence: 99%

Scleral topography and its usefulness in scleral lens fitting

Mabaso

Sithole

2021

African Vision and Eye Health

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“…It can also provide useful information regarding scleral thickness, curvature, and toricity in addition to a detailed evaluation of the corneoscleral-limbal anatomy. 80 …”

Section: Scleral Lenses In Keratoconusmentioning

confidence: 99%

Update on Contact Lens Treatment of Keratoconus

Şengör¹,

Kurna²

2020

tjo

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Keratoconus (KC) is a progressive disease that leads to major losses of visual quality and related quality of life. Contact lens (CL) application has a primary place and importance in the correction of the optic problems due to the disease. The corneal changes and increased irregular astigmatism that occur with KC progression necessitate special CL designs and fitting methods. In addition to disease stage, the patient’s lens tolerance also plays a role in the application of CLs in KC patients. With recent advances in materials and design technology, the CLs used in the treatment of KC have developed considerably and there are various types available. In this review, we discuss the wide range of CLs, including rigid and soft lenses, hybrid and scleral lenses, and even custom lens designs, in light of recent scientific advances.

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“…Intra‐operative use of AS‐OCT also enables dynamic corneal thickness measurements during the corneal collagen cross‐linking procedure, with the advantage that it is non‐invasive, rapid, and permits measurement at several corneal locations, in contrast to ultrasound pachymetry . As reviewed by Vincent et al, AS‐OCT also provides a wealth of information for the fitting of modern contact lenses, particularly mini‐scleral lens fittings.…”

Section: An Overview Of As‐oct Imaging In Humansmentioning

confidence: 99%

Anterior segment optical coherence tomography: its application in clinical practice and experimental models of disease

Jiao

Hill

Downie

et al. 2019

Clinical and Experimental Optometry

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Optical coherence tomography (OCT) provides non-invasive, high-resolution in vivo imaging of the ocular surface and anterior segment. Over the years, it has become an essential tool for evaluating the anterior segment of the eye to monitor ocular development and ocular pathologies in both the clinical and research fields of ophthalmology and optometry. In this review, the clinical applications relating to the use of anterior segment OCT for imaging and quantifying normal and pathological features of the ocular surface, cornea, anterior chamber, and aqueous outflow system are summarised in a range of human ocular diseases. Applications of anterior segment OCT technology that have improved imaging and quantitation of ocular inflammation in experimental animal models of ocular diseases, such as anterior uveitis, microbial keratitis and glaucoma, are also described. The capacity to longitudinally evaluate anterior segment anatomical changes during development, and inflammation facilitates the understanding of the dynamics of tissue responses, and further enhances the intra-operative in vivo imaging during procedures, such as corneal transplantation and drug delivery. Future developments including in vivo ultrahigh-resolution anterior segment OCT, automated analyses of anterior segment OCT images and functional extensions of the technique, may revolutionise the clinical evaluation of anterior segment, corneal and ocular surface diseases.

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Optical coherence tomography and scleral contact lenses: clinical and research applications

Cited by 45 publications

References 98 publications

Scleral topography and its usefulness in scleral lens fitting

Scleral topography and its usefulness in scleral lens fitting

Update on Contact Lens Treatment of Keratoconus

Anterior segment optical coherence tomography: its application in clinical practice and experimental models of disease

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