Biomaterial Database

Corneal sensitivity after photorefractive keratectomy. 1992

M Campos, and L Hertzog, and J J Garbus, and P J McDonnell

Doheny Eye Institute, Los Angeles, CA 90033-1088.

Corneal anesthesia or hypesthesia can complicate refractive surgical procedures such as epikeratophakia and radial keratotomy. An esthesiometer was used to measure the corneal sensitivity in unoperated-on corneas and fellow corneas after excimer laser photorefractive keratectomy. Decrease in corneal sensitivity was noted within six postoperative weeks, with mean sensitivity being 75.2% +/- 13.3% of normal. Within the first three postoperative months, the patients operated on for correction of compound astigmatism recovered 95.7% +/- 5.3% of the corneal sensitivity, whereas the patients operated on for correction of severe myopia recovered 86.2% +/- 11.2% (P = .07). None of the patients had delayed epithelial healing or recurrent corneal erosions during the time of decreased corneal sensitivity. In otherwise normal myopic eyes, photorefractive keratectomy measurably reduced corneal sensitivity for several postoperative weeks.

UI	MeSH Term	Description	Entries
D006987	Hypesthesia	Absent or reduced sensitivity to cutaneous stimulation.	Hypesthesia, Tactile,Hypesthesia, Thermal,Hypoesthesia,Numbness,Impaired Sensation,Reduced Sensation,Hypesthesias,Hypesthesias, Tactile,Hypesthesias, Thermal,Hypoesthesias,Impaired Sensations,Reduced Sensations,Sensation, Impaired,Sensation, Reduced,Sensations, Impaired,Sensations, Reduced,Tactile Hypesthesia,Tactile Hypesthesias,Thermal Hypesthesia,Thermal Hypesthesias
D008875	Middle Aged	An adult aged 45 - 64 years.	Middle Age
D009216	Myopia	A refractive error in which rays of light entering the EYE parallel to the optic axis are brought to a focus in front of the RETINA when accommodation (ACCOMMODATION, OCULAR) is relaxed. This results from an overly curved CORNEA or from the eyeball being too long from front to back. It is also called nearsightedness.	Nearsightedness,Myopias,Nearsightednesses
D011183	Postoperative Complications	Pathologic processes that affect patients after a surgical procedure. They may or may not be related to the disease for which the surgery was done, and they may or may not be direct results of the surgery.	Complication, Postoperative,Complications, Postoperative,Postoperative Complication
D003315	Cornea	The transparent anterior portion of the fibrous coat of the eye consisting of five layers: stratified squamous CORNEAL EPITHELIUM; BOWMAN MEMBRANE; CORNEAL STROMA; DESCEMET MEMBRANE; and mesenchymal CORNEAL ENDOTHELIUM. It serves as the first refracting medium of the eye. It is structurally continuous with the SCLERA, avascular, receiving its nourishment by permeation through spaces between the lamellae, and is innervated by the ophthalmic division of the TRIGEMINAL NERVE via the ciliary nerves and those of the surrounding conjunctiva which together form plexuses. (Cline et al., Dictionary of Visual Science, 4th ed)	Corneas
D003316	Corneal Diseases	Diseases of the cornea.	Corneal Disease,Disease, Corneal,Diseases, Corneal
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000328	Adult	A person having attained full growth or maturity. Adults are of 19 through 44 years of age. For a person between 19 and 24 years of age, YOUNG ADULT is available.	Adults
D000368	Aged	A person 65 years of age or older. For a person older than 79 years, AGED, 80 AND OVER is available.	Elderly
D001251	Astigmatism	Unequal or irregular curvature of the CORNEA (Corneal astigmatism) and/or the EYE LENS (Lenticular astigmatism) resulting in REFRACTIVE ERROR.	Corneal Astigmatism,Hyperopic Astigmatism,Lenticular Astigmatism,Mixed Astigmatism,Myopic Astigmatism,Oblique Astigmatism,Astigmatism, Corneal,Astigmatism, Hyperopic,Astigmatism, Lenticular,Astigmatism, Mixed,Astigmatism, Myopic,Astigmatism, Oblique,Hyperopic Astigmatisms,Mixed Astigmatisms,Myopic Astigmatisms,Oblique Astigmatisms

Related Publications

M Campos, and L Hertzog, and J J Garbus, and P J McDonnell

Corneal irregular astigmatism and contrast sensitivity after photorefractive keratectomy.

December 2001, Ophthalmology,

M Campos, and L Hertzog, and J J Garbus, and P J McDonnell

Corneal ectasia after photorefractive keratectomy.

August 2006, Journal of cataract and refractive surgery,

M Campos, and L Hertzog, and J J Garbus, and P J McDonnell

Corneal ectasia after photorefractive keratectomy.

June 2007, Journal of cataract and refractive surgery,

M Campos, and L Hertzog, and J J Garbus, and P J McDonnell

Corneal ectasia after photorefractive keratectomy.

June 2007, Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie,

M Campos, and L Hertzog, and J J Garbus, and P J McDonnell

Corneal opacity after repeated photorefractive keratectomy.

July 2001, Journal of cataract and refractive surgery,

M Campos, and L Hertzog, and J J Garbus, and P J McDonnell

[Corneal endothelium after photorefractive keratectomy procedures].

January 1996, Klinika oczna,

M Campos, and L Hertzog, and J J Garbus, and P J McDonnell

Effect of beam variables on corneal sensitivity after excimer laser photorefractive keratectomy.

August 1997, The British journal of ophthalmology,

M Campos, and L Hertzog, and J J Garbus, and P J McDonnell

Corneal iron ring after hyperopic photorefractive keratectomy.

May 1999, Journal of cataract and refractive surgery,