Cornea
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To determine the prevalence and risk factors for sleep apnea in a keratoconus population. ⋯ Keratoconus patients are at increased risk for sleep apnea, and different risk factors are associated with sleep apnea in keratoconus patients and controls. Ophthalmologists should consider screening keratoconus patients for obstructive sleep apnea, if appropriate.
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To describe the clinical results of Pentacam-based big bubble deep anterior lamellar keratoplasty (DALK) to achieve an intended 90% depth of initial lamellar trephination. ⋯ Pentacam-based big bubble DALK using a 90% intended depth of initial lamellar trephination seems to be a safe and effective procedure for anterior corneal stromal disorders such as keratoconus. We suggest that Pentacam-based depth assessment allows for reliably deep initial preparation and may allow more successful bubble formation in DALK surgery.
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To determine the prevalence of obstructive sleep apnea (OSA) in patients with keratoconus and evaluate the risk of developing OSA in this patient population. ⋯ Keratoconus patients have a higher prevalence of OSA compared with that accepted for the general population. A striking number of our patients without previous diagnosis of OSA seem to be at high risk for developing OSA, supporting our recommendation for a greater awareness among clinicians who might otherwise overlook this systemic condition and its consequences.