Manual of Contact Lens Prescribing and Fitting by Milton M. Hom, OD, FAAO, and Adrian S. Bruce, BScOptom, PhD,

By Milton M. Hom, OD, FAAO, and Adrian S. Bruce, BScOptom, PhD, FAAO (Eds.)

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2 Management is to treat the erosions with hypertonic drops and patch with a soft bandage lens. 1 Recurrence rates after surgical procedures are high. Anterior stromal dystrophies are dystrophies that affect the anterior third of the cornea. 1. In central crystalline dystrophy, also known as Schnyder’s dystrophy, central cornea crystals form an annulus during the first to second decades of life. A dense arcus ring forms during the third to fourth decades. 3 Visual acuity may be mildly affected.

3,4 Keratoglobus is a rare, bilateral condition in which the cornea is of normal diameter and a large area becomes ectatic (Fig. 2-3). 1,3 Degenerations of the cornea occur secondary to aging or as a sequela to some other corneal disorder. 3 Their location can be central or peripheral. 4 A. Central degenerations of the cornea are degenerations that affect the central portion of the cornea. These degenerations will most likely cause a decrease in visual acuity. 1. Bullous keratopathy is an advanced, prolonged epithelial edema with the formation of epithelial bullae (bubbling formation) that FIGURE 2-3 Keratoglobus represents a significant distortion to a much larger area of the cornea than is typically seen in keratoconus.

Antibiotic eye drops can be used, but they do not work as well as ointments because drops are not in contact with the microorganisms long enough to be effective. Artificial tears may also be required to alleviate symptoms. For example, if peripheral arcuate corneal infiltrates are present without epithelial defects, topical steroids may be used along with appropriate antibiotics. Seborrheic blepharitis is also known as squamous blepharitis. It is part of a dermatologic condition that includes the scalp, face, and eyebrows, all of which culture an abnormal amount of growth of surface organisms.

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