Abstract
Keratoconus is a progressive, bilateral but typically asymmetric, non-inflammatory ectasia of the cornea of undetermined etiology characterized by central corneal stromal thinning, apical protrusion, irregular astigmatism, and variable degrees of scarring. Beginning at puberty in most cases, the disease has a highly variable course in which periods of relative stability are interspersed with episodes of progression. The modes of visual correction in keratoconus vary depending on the stage of the disease. In the very earliest stages, most patients are corrected with myopic, astigmatic spectacles. However, with progression of the disease and distortion of the corneal surface, spectacle correction may no longer suffice, and contact lenses become the primary method of visual rehabilitation. For most patients with keratoconus, contact lens correction becomes the dominant therapeutic mode for the course of their disease. When corneal curvature becomes too steep for lenses to be fit with stability or comfort, or when central scarring no longer permits good central acuity even with an adequate lensfit, opthalmologists turn to some form of surgical therapy for the disease. Surgical treatment may include flattening the apex of the cone by thermal or electrocautery, epikeratoplasty, or, most commonly, keratoplasty. Approximately 10-20% of keratoconus patients come to keratoplasty. In this review, we will discuss past and current approaches to the contact lens correction of keratoconus.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 282-289 |
| Number of pages | 8 |
| Journal | CLAO Journal |
| Volume | 15 |
| Issue number | 4 |
| State | Published - 1989 |
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ASJC Scopus subject areas
- Ophthalmology
Cite this
Contact lens fitting in keratoconus. / Mannis, Mark J; Zadnik, K.
In: CLAO Journal, Vol. 15, No. 4, 1989, p. 282-289.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Contact lens fitting in keratoconus
AU - Mannis, Mark J
AU - Zadnik, K.
PY - 1989
Y1 - 1989
N2 - Keratoconus is a progressive, bilateral but typically asymmetric, non-inflammatory ectasia of the cornea of undetermined etiology characterized by central corneal stromal thinning, apical protrusion, irregular astigmatism, and variable degrees of scarring. Beginning at puberty in most cases, the disease has a highly variable course in which periods of relative stability are interspersed with episodes of progression. The modes of visual correction in keratoconus vary depending on the stage of the disease. In the very earliest stages, most patients are corrected with myopic, astigmatic spectacles. However, with progression of the disease and distortion of the corneal surface, spectacle correction may no longer suffice, and contact lenses become the primary method of visual rehabilitation. For most patients with keratoconus, contact lens correction becomes the dominant therapeutic mode for the course of their disease. When corneal curvature becomes too steep for lenses to be fit with stability or comfort, or when central scarring no longer permits good central acuity even with an adequate lensfit, opthalmologists turn to some form of surgical therapy for the disease. Surgical treatment may include flattening the apex of the cone by thermal or electrocautery, epikeratoplasty, or, most commonly, keratoplasty. Approximately 10-20% of keratoconus patients come to keratoplasty. In this review, we will discuss past and current approaches to the contact lens correction of keratoconus.
AB - Keratoconus is a progressive, bilateral but typically asymmetric, non-inflammatory ectasia of the cornea of undetermined etiology characterized by central corneal stromal thinning, apical protrusion, irregular astigmatism, and variable degrees of scarring. Beginning at puberty in most cases, the disease has a highly variable course in which periods of relative stability are interspersed with episodes of progression. The modes of visual correction in keratoconus vary depending on the stage of the disease. In the very earliest stages, most patients are corrected with myopic, astigmatic spectacles. However, with progression of the disease and distortion of the corneal surface, spectacle correction may no longer suffice, and contact lenses become the primary method of visual rehabilitation. For most patients with keratoconus, contact lens correction becomes the dominant therapeutic mode for the course of their disease. When corneal curvature becomes too steep for lenses to be fit with stability or comfort, or when central scarring no longer permits good central acuity even with an adequate lensfit, opthalmologists turn to some form of surgical therapy for the disease. Surgical treatment may include flattening the apex of the cone by thermal or electrocautery, epikeratoplasty, or, most commonly, keratoplasty. Approximately 10-20% of keratoconus patients come to keratoplasty. In this review, we will discuss past and current approaches to the contact lens correction of keratoconus.
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M3 - Article
C2 - 2680163
AN - SCOPUS:0024325580
VL - 15
SP - 282
EP - 289
JO - Eye and Contact Lense
JF - Eye and Contact Lense
SN - 1542-2321
IS - 4
ER -