![]() Overall the patient was happy and noted improved quality of vision. Pellucid Marginal Degeneration (PMD keratotorus), is a degenerative corneal condition, often confused with keratoconus. We were able to minimize the glare/halo with the UltraHealth FC. The patient has pellucid degeneration and the lens would decenter slightly inferiorly which resulted in a small amount of residual glare/halo. This fit was more challenging due to the expectations/needs of the patient. Patient was wearing glasses before, and is extremely happy to be in contact lenses that work for most activities. He states he is happy overall, but still has some halos/glare at night. The patient wears the lenses 12-14 hours a day. At this visit the patient preferred a combo of the UH-FC OD and original UH OS because the shadowing was minimized. When the UH-FC lens came in the patient preferred the standard UH, although acuity was equal. Patient wanted to compare glare/halo between the two lenses. He persisted and an UltraHealth-FC was tried OS. I advised the patient he was doing well and not to change OS. At follow-up the patient was happy OD and wanted to try UltraHealth FC (UH-FC) on his left eye (he was already wearing UltraHealth (UH). Patient stated clarity was great but glare/halo was annoying. The original lens OD, UltraHealth, at follow-up was minimally tight fitting and inferiorly decentered. He feels his vision has improved with the contact lenses. The patient is happy with the acuity and ability to wear contacts. Patient is also in a band and had high visual demands for night driving and dim environments. The patient had corneal cross linking on both eyes and presented needing an improvement to vision for work. The patient is a firefighter/paramedic who was diagnosed with pellucid marginal degeneration OU. Kristi Rhodes, Schwartz Laser Eye Center, AZ Zywave wavefront analysis showed a Zernicke RMS of 1.40 µm in the right eye and 1.03 µm in the left eye with a 6-mm optical zone. Having an advanced corneal topographer and several keratoconus contact lens trial sets available in the office are a positive sign.OD: Dr. tomographic features of pellucid-like keratoconus (PLK), and to report a new sign on the pachymetry map (PM) in pellucid marginal degeneration (PMD). Contact lens fitters should be selected on the basis of experience andĬommitment to aiding keratoconus patients. Improperly fit contact lenses can cause extensive damage to the cornea and can ultimately lead to a corneal transplant. As the condition advances, specialized rigid and scleral Contact Lens Anterior Eye 34:5663, 2011 Fuchihata et al. Custom soft toric contact lenses will often provideĪdequate performance and safety. Pellucid marginal degeneration (PMD) is a relatively rare, non-inflammatory, and generally bilateral corneal ectasia (Jinabhai et al. In the early stages, the central cornea is regular although highly astigmatic. We do our best to keep it simple, but our primary focus will always be on you vision and the health of your eyes.įitting patients with PMD can be especially challenging. For some patients it is a continuing process whichīegins all over again as the condition progresses. In rare cases the process can take many months. You can expect several return visits to fine-tune the fit and prescription. Fitting contact lenses on a keratoconic cornea is delicateĪnd time-consuming. The key to a successful contact lens fitting isn't as much the lens as it is the skill and experience of the contact lens fitter. Scleral lenses have rapidly become a preferred choice for many patients. Some of the newest Zen scleral lenses fitted using ultraprecise optical coherence tomography can provide exceptional comfort and outstanding vision for keratoconus If a patient has a topographic pattern that indicates keratoconus, pellucid marginal degeneration or forme fruste keratoconus, then they should absolutely be excluded from LASIK, even if the remainder of their examination is normal. Originally introduced by New Zealand Optometrist, Dr. ![]() Keratoconus and pellucid marginal degeneration. The Rose-K is an example of an exceptional and flexible corneal lens design There are numerous contact lens designs used to treat In more advanced keratoconus, rigid gas permeable corneal or scleral contact lenses are usually the best choice for visual rehabilitation. Will often provide acceptable vision and comfort. We analyze that while going through the advanced corneal diagnostics the diagnosis appears to be most likely pellucid marginal degeneration all the specifics are analyzed and in my opinion. As the disorder progresses and the corneaīecomes increasingly distorted, specially designed soft lenses ( KeraSoft IC and NovaKone), hybrid rigid-soft ( SynergEyes) lenses In the mildest form of keratoconus, eyeglasses or soft contact lenses often provide adequate vision. We are great believers in conservative treatment.
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