eMedicine Specialties > Ophthalmology > Cornea
Dystrophy, Macular: Treatment & Medication
Updated: Mar 16, 2006
- Overview
- Differential Diagnoses & Workup
- Treatment & Medication
- Follow-up
- Multimedia
Treatment
Medical Care
- When recurrent corneal erosions occur with this condition, they are treated like any other form of recurrent corneal erosion.
- Under the care of an ophthalmologist, a bandage contact lens along with antibiotics can be prescribed. Alternatively, patching with an antibiotic ointment or frequent application of an antibiotic ointment can be used.
- Once the acute episode of recurrent corneal erosion resolves, preventive treatment may include sodium chloride 5% drops (eg, Muro 128) or artificial tear lubricating drops during the day and sodium chloride 5% ointment (eg, Muro 128) or lubricating ointment at bedtime.
- If recurrent corneal erosions occur despite medical therapy, then excimer laser phototherapeutic keratectomy (PTK) may be considered.
- Sunglasses are often helpful for severe glare symptoms.
Surgical Care
- Excessive corneal erosions or a mild visual decrease can be treated with excimer laser PTK, which works best when the opacities are superficial. The excimer laser removes superficial corneal opacities, smooths the corneal surface, and allows the epithelium to re-adhere more tightly.
- If visual acuity drops and the opacities are deep, lamellar or full-thickness corneal transplantation can be performed. Although the success rate for corneal transplantation is high, macular dystrophy deposits can recur with time.
Medication
Medical therapy for recurrent corneal erosions includes hypertonic saline, which is thought to increase adherence of the epithelium to the underlying stroma. Lubrication may also help prevent corneal erosions.
Hypertonic saline
Dehydrates the epithelium, allowing it to better adhere to the underlying stroma.
Sodium chloride 5% (Muro 128, Adsorbonac, Afrin)
Used for temporary relief of corneal edema.
Adult
Solution: 1-2 gtt to affected eye(s) tid/qid
Ointment: Apply 0.25-0.5 inch to lower cul-de-sac hs
Pediatric
Administer as in adults
None reported
Documented hypersensitivity
Pregnancy
A - Safe in pregnancy
Precautions
May cause temporary burning and irritation upon use; if pain, change in vision, continued redness or irritation of the eye(s) occurs, reevaluate therapy; if initial condition/problem worsens or persists, reevaluate therapy; do not use product if it changes color or becomes cloudy
Lubricating agent
Moistens the ocular surface and decreases the frequency of recurrent erosions.
Artificial tears (GenTeal, Refresh tears, TheraTears, Bion tears, Refresh Plus)
Contains equivalent of 0.9% NaCl and used to maintain ocular tonicity. Acts to stabilize and thicken precorneal tear film and prolong tear film breakup time, which occurs with dry eye states.
Adult
Solution: 1 gtt 4-8 times/d to affected eye(s) or as directed
Ointment: Apply 0.25-0.5 inch to lower cul-de-sac hs
Pediatric
Administer as in adults
None reported
Documented hypersensitivity
Pregnancy
A - Safe in pregnancy
Precautions
Hyperemia, photophobia, stickiness of eyelashes, and ocular discomfort or irritation may occur
More on Dystrophy, Macular |
| Overview: Dystrophy, Macular |
| Differential Diagnoses & Workup: Dystrophy, Macular |
Treatment & Medication: Dystrophy, Macular |
| Follow-up: Dystrophy, Macular |
| Multimedia: Dystrophy, Macular |
| References |
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References
Al-Swailem SA, Al-Rajhi AA, Wagoner MD. Penetrating keratoplasty for macular corneal dystrophy. Ophthalmology. Feb 2005;112(2):220-4. [Medline].
Albert D, Jakobiec F. Principles and Practice of Ophthalmology. Vol 1. 1996:26-49.
Edward DP, Yue BY, Sugar J, et al. Heterogeneity in macular corneal dystrophy. Arch Ophthalmol. Nov 1988;106(11):1579-83. [Medline].
Hafner A, Langenbucher A, Seitz B. Long-term results of phototherapeutic keratectomy with 193-nm excimer laser for macular corneal dystrophy. Am J Ophthalmol. Sep 2005;140(3):392-6. [Medline].
Klintworth GK, Meyer R, Dennis R, et al. Macular corneal dystrophy. Lack of keratan sulfate in serum and cornea. Ophthalmic Paediatr Genet. Dec 1986;7(3):139-43. [Medline].
Krachmer J. Cornea. Vol 2. 1996.
Wirtitsch MG, Ergun E, Hermann B. Ultrahigh resolution optical coherence tomography in macular dystrophy. Am J Ophthalmol. Dec 2005;140(6):976-983. [Medline].
Further Reading
Keywords
corneal dystrophy, corneal stroma, anterior corneal dystrophy, stromal corneal dystrophy, posterior corneal dystrophy, corneal dystrophies
Treatment & Medication: Dystrophy, Macular