LASIKImplantable Collamer Lens (ICL)ReLEx SMILEepi-LASIK
ProcedureThe cornea is cut with either a rapidly oscillating blade or with a femtosecond laser. The flap is opened up, and the excimer laser starts removing tissue to reshape the cornea. The flap is then closed back.A permanent intra-ocular contact lens will be inserted through a small incision at the side of the cornea. The ICL is placed behind the iris and in front of the natural lens of the eye.A small lens-shaped piece of cornea tissue (lenticule) is cut out with a femtosecond laser. The lenticule is removed through a small incision at the side of the cornea.The topmost surface epithelium cells are gently removed before
a laser is used to reshape the underlying cornea. The epithelium cells will then self-heal.
Duration15-20 min per eye30 min per eye10-15 min per eye5-10 mins per eye
Criteria for...
Note: These are rough estimates and are very much subjected to one’s cornea thickness.
Myopia: Up to 1,000 deg Hyperopia: Up to 300 deg Astigmatism: Up to 450 deg
Corneal Thickness: Above 500 microns
Myopia: Up to 2,000 deg Astigmatism: Up to 250 deg • Anterior chamber depth must be more than 2.80 mm • Needs to do a laser iridotomy pre-op to prevent glaucomaMyopia: 300 - 1,000 deg Hyperopia: NA Astigmatism: Up to 500 deg
Corneal Thickness: Above 500 microns
Myopia: Up to 1,200 deg Hyperopia: Up to 300 deg Astigmatism: Up to 500 deg
Corneal Thickness: Above 475 microns
RecoveryRecovery time is relatively painless, and takes about 1 day to a week.
Eye drops: 1 – 3 weeks Resume work: 2 days Resume active sports: 8 weeks*
Full vision recovery: 1 – 3 months
Recovery time is relatively painless, and takes about 3 days to 1 week.
Eye drops: 4 - 6 weeks Resume work: 2 days Resume active sports: 4 weeks
Full vision recovery: 1 - 3 months
Recovery is relatively painless, and takes about 3 days to 1 week.
Eye drops: 4 – 6 weeks Resume work: 2 days Resume active sports: 4 weeks
Full vision recovery: 1 – 3 months
Recovery time differs for each individual. Epithelium cells generally heal in 3 – 5 days. During the few days, vision fluctuations and discomfort can be experienced.
Eye Drops: 4 – 6 weeks Resume work: 3 – 5 days Resume active sports: 2 weeks Full vision recovery:
1 – 6 months
ProsFast visual recovery. Discomfort usually for one day. On average, the least expensive.Can correct extreme
myopia of >1,200 effectively. An option to consider when other less invasive methods are not suitable.
Refer to 8 Advantages of Flapless, Bladeless ProceduresRefer to 8 Advantages of Flapless, Bladeless Procedures
ConsFlap-related complications such as flap wrinkles, flap inflammations and debris being stuck under the flap.
Long term and even permanent dry eye condition can occur because thousands of cornea nerve endings are cut when the cornea flap is created.
More sacrifice of cornea tissue.
The most invasive of all the eye procedures, as the surgery is done inside the eye, instead of on the cornea surface.
The ICL cannot stay in your eye forever. You will need to undergo another surgery to remove it later in life.
Increases the risk of glaucoma and cataracts.
No enhancements possible. ReLEx can only be done once. Enhancements will only be possible using epi-LASIK.
Relex is the “new kid on the block”.
More prolonged initial eye recovery, involving more prolonged eye discomfort and slower visual recovery. Need to avoid strong sunlight for one month.
Other Things to NoteIf cornea flap dislodgement is suspected, see your eye doctor immediately to prevent permanent irreversible loss of best corrected visual acuity.Intra-ocular eye infection is an uncommon but extremely serious complication of ICL. It can lead to total loss of the eye.Being a newly introduced procedure, the long-term side effects and success rates of surgery are yet to be established.Suitable for those rejected from LASIK because of dry eye, thin cornea and/or high myopia power.
Cost for two eyesFrom $2,888 at The LASIK Surgery Clinic; from $3,888 at Shinagawa Eye Centre; from $2,364 at Singapore National Eye Centre (SNEC).From $13,000 at Pacific Eye Centre; from $8,900 at SNEC.From $5,289 at The LASIK Surgery Clinic; from $4,376 at SNEC.From $3,388 at Clearvision Eye Clinic and LASIK Centre; from $3,600 at SNEC.