Audiological Management II
16 Audiological Management II The previous chapter covered the basic concepts and technical considerations involved with hearing aids. We will now continue with our coverage of audiological management with a…
Clinical Masking
9 Clinical Masking It seems reasonable to assume that sounds presented to the right ear are heard by the right ear, and that sounds presented to the left ear are…
Audiological Screening
13 Audiological Screening Screening Principles Screening programs are used to identify those individuals who have a particular disorder or group of disorders. Screening is warranted when a disorder has appreciable…
Audiological Management I
15 Audiological Management I In the grand sense, the terms audiological (re)habilitation and aural (re)habilitation refer to a wide range of modalities employed by the audiologist to maximize the hearing-impaired…
Nonorganic Hearing Loss
14 Nonorganic Hearing Loss Routine audiological tests rely on the patient’s behavioral responses to the stimuli presented to her. If she can hear a tone as soft as 0 dB…
Assessment of Infants and Children
12 Assessment of Infants and Children This chapter is concerned with the audiological evaluation of children. Here, we are concerned with audiological procedures that have been modified or specially developed…
Photoablation: Complications and Adverse Effects
Figure 6-1 Wavefront analysis depicting higher-order aberrations after laser in situ keratomileusis (LASIK), including coma and trefoil. (Courtesy of Steven I. Rosenfeld, MD.) Pallikaris IG, Kymionis GD, Panagopoulou SI, Siganos…
The Science of Refractive Surgery
This chapter reviews the fundamental corneal properties relevant to refractive surgery (focusing on keratorefractive procedures), corneal imaging for refractive surgery, and the effects of keratorefractive surgery on the cornea. It…
Photoablation: Techniques and Outcomes
Figure 5-1 Schematic representations of corneal recontouring by the excimer laser. A, Correction of myopia by flattening the central cornea. B, Correction of hyperopia by steepening the central corneal optical…
Accommodative and Nonaccommodative Treatment of Presbyopia
Figure 9-1 Schematic representation of the Helmholtz theory of accommodation, in which contraction of the ciliary muscle during accommodation (bottom) leads to relaxation of the zonular fibers. The reduced zonular…
