eMedicine Specialties > Ophthalmology > Cornea
Dystrophy, Granular: Treatment & Medication
Updated: Mar 15, 2006
- Overview
- Differential Diagnoses & Workup
- Treatment & Medication
- Follow-up
- Multimedia
Treatment
Medical Care
- When recurrent erosions occur with this condition, they are treated like any other form of recurrent erosion.
- Under care of an ophthalmologist, bandage contact lens along with antibiotics can be prescribed; alternatively, patching with an antibiotic ointment can be used. Some physicians treat recurrent erosions with frequent antibiotic ointments while awake.
- Once the acute episode of recurrent erosion has resolved, preventive treatment may include sodium chloride 5% drops or artificial tear lubricating drops during the day and lubricating ointment at bedtime.
- If recurrent corneal erosions occur despite medical therapy, then excimer laser phototherapeutic keratectomy (PTK) may be considered.
Surgical Care
Excimer laser PTK is quite effective at removing opacities from the superficial cornea. When deep opacities are causing significant visual symptoms, corneal transplantation may be required.
- Excessive corneal erosions or visual decrease from superficial opacities can be treated with PTK. Excimer laser PTK removes superficial opacities, smooths the corneal surface, and allows the epithelium to re-adhere more tightly.
- If the visual acuity drops and most of the opacities are deep, lamellar or full-thickness corneal transplantation can be performed. Although the success rate for corneal transplantation is very high, granular deposits recur with time. Fortunately, when the deposits recur, they tend to be superficial, and amenable to treatment with excimer laser PTK.
Medication
Medical therapy for recurrent corneal erosions includes hypertonic saline, which is believed to increase adherence of epithelium to the underlying stroma. Lubrication, especially at bedtime, also may help prevent further corneal erosions.
Hypertonic saline drops
Dehydrates the epithelium, allowing it to better adhere to underlying stroma.
Sodium chloride 5% (Adsorbonac, Afrin Saline Mist, Muro 128)
Used for temporary relief of corneal edema.
Adult
Solution: 1-2 gtt in affected eye(s) tid/qid
Ointment: 0.25-0.5 inch to lower cul-de-sac qhs
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) occur, or if initial condition/problem worsens or persists, reevaluate therapy; do not use product if it changes color or becomes cloudy
Lubricating agents
Can moisten ocular surface and decrease frequency of recurrent erosions.
Artificial tears (Celluvisc, Murine, Refresh, GenTeal, Refresh PM, Lacri-Lube)
Contains equivalent of 0.9% NaCl and are 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 to affected eye 4-8 times/d
Ointment: 0.25-0.5 inch to lower cul-de-sac qhs
Pediatric
Administer as in adults
None reported
Documented hypersensitivity
Pregnancy
A - Safe in pregnancy
Precautions
Hyperemia, photophobia, stickiness of eyelashes, ocular discomfort or irritation may occur
More on Dystrophy, Granular |
| Overview: Dystrophy, Granular |
| Differential Diagnoses & Workup: Dystrophy, Granular |
Treatment & Medication: Dystrophy, Granular |
| Follow-up: Dystrophy, Granular |
| Multimedia: Dystrophy, Granular |
| References |
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References
Albert D, Jakobiec F. Principles and Practice of Ophthalmology. Vol 1. 1994:26-49.
Das S, Langenbucher A, Seitz B. Excimer laser phototherapeutic keratectomy for granular and lattice corneal dystrophy: a comparative study. J Refract Surg. Nov-Dec 2005;21(6):727-31. [Medline].
Grunauer-Kloevekorn C, Brautigam S, Wolter-Roessler M. Molecular genetic analysis of the BIGH3 gene in lattice type I (Biber-Haab-Dimmer) and granular type II (Avellino) corneal dystrophy: is indirect mutation analysis for hot spots recommended?. Klin Monatsbl Augenheilkd. Dec 2005;222(12):1017-23. [Medline].
Klintworth GK. Advances in the molecular genetics of corneal dystrophies. Am J Ophthalmol. Dec 1999;128(6):747-54. [Medline].
Krachmer J. Cornea. Vol 2. 1996.
Yamamoto S, Okada M, Tsujikawa M, et al. The spectrum of beta ig-h3 gene mutations in Japanese patients with corneal dystrophy. Cornea. May 2000;19(3 Suppl):S21-3. [Medline].
Further Reading
Keywords
granular dystrophy, corneal dystrophy, granular corneal dystrophy
Treatment & Medication: Dystrophy, Granular