Clemensenknight7339

To determine the correlation and relative contribution of preoperative anterior corneal Zernike coefficients to higher order aberration ablation depth (HOA-AD) with topography-guided excimer laser correction.

Retrospective study of 46,271 consecutive preoperative virgin eyes. Anterior corneal Zernike coefficients (C6 to C27) and HOA-AD data on a 6.5-mm optical zone were analyzed from the Contoura (Alcon Laboratories, Inc) treatment software. Pearson correlations were performed to assess the relationship between Zernike coefficients and HOA-AD.

A strong direct relationship was found between the total root mean square (RMS) anterior corneal HOA and HOA-AD (R = 0.84; P < .001). The 3rd order HOAs (C6 to C9) accounted for most of the HOA-AD (R = 0.83; P < .001). Zernike orders 4, 5, and 6 had significantly weaker correlations (4th order R = 0.30; 5th order R = 0.38; 6th order R = 0.29). Vertical coma was the individual HOA with the highest correlation (R = 0.59; P < .001). Combining vertical and horizontal coma as total RMS coma increased the correlation significantly (R = 0.76; P < .001). The average HOA-AD increased by 1.5 µm for each additional 0.1-µm increment of total RMS coma.

Anterior corneal Zernike coefficients directly and strongly correlate to the HOA-AD, with anterior corneal coma having the greatest contribution to HOA-AD. [J Refract Surg. 2020;36(8)506-510.].

Anterior corneal Zernike coefficients directly and strongly correlate to the HOA-AD, with anterior corneal coma having the greatest contribution to HOA-AD. [J Refract Surg. 2020;36(8)506-510.].

To evaluate the efficacy of simultaneous laser in situ keratomileusis (LASIK) and small-aperture corneal inlay (KAMRA; AcuFocus, Inc) implantation in hyperopic presbyopic eyes at 5 years postoperatively.

This was a retrospective single-center study of patients with hyperopia and presbyopia who underwent simultaneous LASIK and corneal inlay implantation by two experienced refractive surgeons. These patients were regularly observed for 5 years and evaluated with serial corneal tomographies and refractive assessments for uncorrected near visual acuity (UNVA), uncorrected distance visual acuity (UDVA), corrected distance visual acuity (CDVA), distance-corrected near visual acuity (DCNVA), and manifest refraction spherical equivalent (MRSE).

Twenty-four eyes of 24 patients were included. Mean age was 53.63 ± 4.11 years (range 47 to 63 years) and mean preoperative MRSE was +1.52 ± 0.64 diopters (D) (range +0.50 to +3.00 D). UNVA was 0.04 ± 0.06 logMAR at 1 month and 0.02 ± 0.05 logMAR (J1+ equivalent) at 5 yeng UDVA and UNVA in hyperopic presbyopic eyes. However, late-onset regression with hyperopic shift, possible loss of CDVA, and occasional haze remain challenges. [J Refract Surg. 2020;36(8)498-505.].A previously healthy 6-year-old boy presented with new onset seizure activity and altered mental status. His prehospital course included prolonged fever, vague abdominal complaints, and unusual behavior. Neurological testing was unrevealing, and his symptoms slowly improved without intervention. His primary pediatrician had ordered serum antibody titers to Bartonella henselae for testing of prolonged fever in the setting of exposure to a kitten; these were found to be positive for both immunoglobulin G and immunoglobulin M. Further examination for organ involvement revealed splenic and liver micro-abscesses. After completion of his antibiotic course, the patient returned to his cognitive and neurologic baseline with resolution of his abdominal abscesses. This case emphasizes the importance of obtaining a thorough exposure history when evaluating for infectious causes of encephalitis. [Pediatr Ann. 2020;49(8)e359-e362.].Medical child abuse (MCA) continues to remain a challenging form of abuse to recognize, diagnose, and manage. The perpetrators of MCA have some common features that may heighten the suspicion that a child is the victim of MCA. Once suspected, the development of a multidisciplinary care plan that incorporates all subspecialists and health care providers involved in the child's care is essential. A structured approach to record review can clarify the concerns and discrepancies as well assist in potential future testimony. The use of overt or covert video surveillance systems are potential modalities to aid in making the diagnosis of MCA. If called to testify, it is helpful to understand the court system. Risks to the child from MCA are great and include a high level of long-term morbidity and mortality. Understanding this diagnosis and having a plan in place to address it when suspected can prevent further harm to the child. Tamoxifen [Pediatr Ann. 2020;49(8)e354-e358.].Abusive head trauma (AHT) refers to a well-recognized constellation of injuries caused by the direct application of force to an infant or young child, resulting in trauma to the head, intracranial contents, and/or neck, with potentially devastating health outcomes. Mechanisms of AHT include impulsive injurious acts, such as violent shaking and impact, often due to caregiver frustration or exhaustion. Subdural and retinal hemorrhage, and associated extracranial injury (fractures, abdominal trauma), are common. Suspected victims require laboratory/diagnostic testing and occult injury screening, as well as protective measures by investigative authorities to ensure safety. Medicolegal controversies persist around AHT diagnosis, including alternative hypotheses proffered in court by skeptics despite advances in scientific understanding, biomechanical research, neuroimaging techniques, and perpetrator confessions. Pediatricians play a key role in prevention and reduction of AHT morbidity and mortality through anticipatory guidance and caregiver education about the risks of shaking, normal infant development and behavior, and encouragement of stress reduction strategies. [Pediatr Ann. 2020;49(8)e347-e353.].The US Department of Health and Human Services statistics indicate that cases of child maltreatment are rising. This can be an extra burden on an already strained health care system. Although a call to child protective service may be warranted, a thorough history and initial testing may be sufficient to diagnose a child abuse mimic and rule out physical abuse. This testing can help facilitate the investigation and can also prevent unneeded stress on a family. The most common presentation of physical abuse is a skin finding, typically a bruise. A detailed history and physical examination can help differentiate between physical abuse and mimics of physical abuse. Familiarity with mimics can help one in establishing a differential diagnosis and facilitate the testing for physical abuse. As skin findings may be the first indicator of abuse, this article focuses on abnormal skin findings that can mimic abuse and how to differentiate them from abuse. [Pediatr Ann. 2020;49(8)e341-e346.].