Pentacam Anterior Float Anomaly Due to Band Shaped Keratopathy
Journal Title: Journal of Ophthalmology and Advance Research - Year 2021, Vol 2, Issue 1
Abstract
A 27 year old female with best corrected visual acuity 20/60 and 20/30 in the right (OD) and left (OS) eyes respectively presented to us for refractive surgery. Refractive errors were -9.25 D and -7 D spherical equivalent OD and OS respectively. She had undergone scleral buckling for OD rhegmatogenous retinal detachment 4 years back. On examination OS was normal. OD had band shaped keratopathy in the cornea near inferotemporal and inferonasal limbus (Fig. 1). Posterior segment OD showed attached retina with buckle indent and cryopexy scarring (Fig. 1). Pentacam OD showed red area in the front float elevation difference on Belin Ambrosio enhanced ectasia display map (Fig 1). The patient was started on lubricants for corneal surface treatment before planning for refractive surgery. Band shaped keratopathy is a corneal degeneration commonly band shaped which involves deposition of calcium in the sub-epithelium, Bowman’s layer and anterior corneal stroma [1]. Common causes of the degeneration include chronic ocular diseases like uveitis, chemical exposure to cornea, autoimmune diseases, systemic diseases causing hypercalcemia, intraocular surgeries etc. Scleral buckling has been reported to cause calcific band keratopathy [2]. In our case the keratopathy could have been due to scleral buckling, any corneal intervention during the buckling procedure like paracentesis or due to the rhegmatogenous retinal detachment and its inflammatory sequelae itself. Another cause could be preservatives used in topical medications for post-operative period [3,4]. Due to corneal surface irregularities caused, BSK are bound to cause tear film stasis abnormality and ocular surface disease which is manifested as a red area in the BAD map [5].
Authors and Affiliations
Sudarshan Kumar Khokhar, Amber Amar Bhayana*, Priyanka Prasad
Keywords
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- EP ID EP698925
- DOI http://dx.doi.org/10.46889/JOAR.2021.2102
- Views 91
- Downloads 0
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