High Astigmatism Secondary to Peripheral Ectasia Recurrence in Postpenetrating Keratoplasty Eyes Managed With Miniscleral Contact Lenses.
Eye Contact Lens
; 49(10): 417-421, 2023 Oct 01.
Article
in En
| MEDLINE
| ID: mdl-37595277
ABSTRACT
OBJECTIVES:
After penetrating keratoplasty (PK) for keratoconus, vision can be impaired by high-degree astigmatism, particularly in those patients with recurrent peripheral ectasia. Scleral contact lenses (CLs) have long been used in the management of keratoconus both in treatment-naive corneas and those postcorneal transplants. We report the use of miniscleral CLs and their related visual and clinical outcomes in a series of patients with post-PK peripheral rim ectasia.METHODS:
In this retrospective case series, 5 patients (7 eyes) presented because of reduced visual acuity with their spectacles/CLs and/or reduced comfort with their existing rigid gas-permeable lenses. All patients in this series underwent PK more than two decades ago for keratoconus (mean 28.7 years±7.2). All patients demonstrated characteristic thinning at the graft-host junction, with anterior chamber deepening. Central corneas had remained clear in all patients inferring high visual potential. Contact lenses used were No 7 Comfort 15 miniscleral and the Onefit MED scleral with 14.5 mm and 15.6 mm diameters, respectively.RESULTS:
All eyes achieved a best-corrected visual acuity of 6/9 or greater. One case had difficulty with insertion and removal and has since discontinued wearing lens at this time. All others are successfully wearing the lenses regularly.CONCLUSION:
Despite advances in CL design, surgical management is still required in some patients. Miniscleral CLs are effective in the refractive management of peripheral ectasia in keratoconic post-PK eyes and should be considered in such eyes before proceeding with repeat surgical intervention.
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Astigmatism
/
Corneal Transplantation
/
Contact Lenses
/
Keratoconus
Type of study:
Etiology_studies
/
Observational_studies
/
Risk_factors_studies
Limits:
Humans
Language:
En
Journal:
Eye Contact Lens
Journal subject:
OFTALMOLOGIA
Year:
2023
Type:
Article
Affiliation country:
United kingdom