CLINICAL SCIENCE
Descemetorhexis Without Grafting for Fuchs Endothelial
Dystrophy—Supplementation With Topical Ripasudil
Gregory Moloney, MBBS, BSc (Med), MMed, FRANZCO,*†
Constantinos Petsoglou, MBBS, MMed, FRANZCO,*† Matthew Ball, MBBS, FRANZCO,*†
Yves Kerdraon, MBBS, BSc (Med), MBiomedE, FRANZCO,*†
Roland Höllhumer, MBChB, MMed, FC Ophth (SA),* Natasha Spiteri, MD, FRCOphth,*
Simone Beheregaray, MD, PhD,* Judith Hampson, BPharm, MHA,*
Mario D’Souza, MSc, PhD,† and Raj N. Devasahayam, BApp Sci*†‡
Purpose: To report the safety and efficacy of descemetorhexis
without grafting as a primary intervention in Fuchs dystrophy, and
the use of a ROCK inhibitor, ripasudil as a salvage agent in
failing cases.
Methods: Twelve eyes of 11 patients underwent central descemeto-
rhexis not exceeding 4 mm. All had Fuchs dystrophy–producing visual
symptoms, requesting intervention. Exclusion criteria were a peripheral
endothelial cell count ,1000 and central edema. Corneal clearance and
visual parameters were recorded monthly until corneal clearance was
observed, then at intervals of 6 months. Cases failing to clear by month
2 were considered for salvage treatment. This consisted of treatment
with 1 of 2 formulations of Rho-associated kinase inhibitor eye drops.
Endothelial keratoplasty was planned as the final salvage procedure in
unsuccessful cases.
Results: Nine of 12 eyes cleared spontaneously between 2 and 6
months. One eye failed to clear by month 5 and topical Y-27632 was
administered, without success. Endothelial keratoplasty was per-
formed. In 2 eyes, healing stalled at 3 and 2 months. In both cases,
topical ripasudil administered 6 times a day for 2 weeks resulted in
complete corneal clearance. In cases achieving corneal clearance, best
spectacle corrected visual acuity improved from a mean of 0.26 to
0.125 (logMAR) with subjective improvement in quality of vision.
Conclusions: In Fuchs dystrophy with visual degradation due to
central guttae, descemetorhexis without grafting is a viable pro-
cedure for visual rehabilitation. Careful patient selection is required,
but the advent of topical ripasudil as a salvage agent suggests that
a broader application of the surgery may be possible. Further study
into the use of this agent is now needed.
Key Words: Fuchs dystrophy, Descemetorhexis, ripasudil
(Cornea 2017;36:642–648)
S
urgical management of Fuchs endothelial corneal dystro-
phy (FECD) continues to advance at a rapid pace.
Transition to lamellar surgery is now evolving into a search
for more minimally invasive techniques. Several centers,
including our own, have reported success with graftless
procedures as a primary intervention.
1–8
This calls into
question the need for endothelial transplantation in every
case of symptomatic Fuchs dystrophy and invites the
possibility of more inventive use of available tissue for
transplantation. In addition, medical therapies for the condi-
tion are the subject of intense research. Notable among these
is the use of topical Rho-associated kinase (ROCK) inhibitors
to aid in corneal clearance.
9–16
ROCK is a serine/threonine kinase and an important
downstream effector of Rho guanosine triphosphatase,
playing a critical role in regulation of contractile tone of
smooth muscle tissues.
15
Its inhibition as a potential
effector of corneal endothelial healing has been pioneered
in recent years by Kinoshita et al. Ripasudil hydrochloride
hydrate (Glanatec ophthalmic solution 0.4%, Kowa Co
Ltd., Nagoya, Japan) is a topical, selective ROCK 1 and 2
inhibitor, which has recently come to the market in Japan
for treatment of glaucoma and ocular hypertension. Its
safety in phase III clinical trials for ocular hypertension
has been demonstrated, as has its ability to accelerate
corneal endothelial healing in rabbit models. No adverse
alteration of endothelial cell morphology was reported in
phase I human trials.
9,15,16
Its use for acceleration of
corneal endothelial healing is currently off label.
We recently reported our experience of spontaneous
corneal clearance after primary descemetorhexis in Fuchs
dystrophy.
1
Clearance was observed by 1 month with
improvement in best-corrected vision from 20/40 to 20/20.
Subjectively, the patient reported satisfaction with the pro-
cedure and resolution of blur and debilitating glare. There
have also been recent reports of mixed or poor results
illustrating the potential for failure of this technique.
17–19
Received for publication December 30, 2016; revision received February 2,
2017; accepted February 21, 2017. Published online ahead of print April
14, 2017.
From the *Discipline of Ophthalmology, Sydney Medical School, The
University of Sydney, Sydney, Australia; †Sydney Eye Hospital, Sydney,
Australia; and ‡Lions NSW Eye Bank, OTDS (Organ and Tissue Donation
Service), Sydney, Australia.
The authors have no funding or conflicts of interest to disclose.
Reprints: Gregory Moloney, MBBS, BSc (Med), MMed, FRANZCO,
Mosman Eye Centre, 1A Effingham St, Mosman, NSW 2088, Australia
(e-mail: gregorymoloney@yahoo.com.au).
Copyright © 2017 Wolters Kluwer Health, Inc. All rights reserved.
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