vi
13-Jun-2026
30,970 Mr. Nhat, 36, had been highly myopic since the age of seven, with his prescription progressing to -10.00 to -12.00 diopters. He was diagnosed with severe multiple refractive errors and was recommended for surgical treatment.
Mr. Nhat’s right eye had -12.00 D of myopia with -2.00 D of astigmatism, while his left eye had -10.00 D of myopia. Without glasses, he could only count fingers at a distance of approximately two meters with both eyes. According to MSc. MD. Duong Minh Phuc from the High-Tech Eye Center, Tam Anh General Hospital, Ho Chi Minh City, Mr. Nhat had thin corneas measuring 460 micrometers, making him unsuitable for laser vision correction procedures. He was therefore indicated for Phakic ICL surgery.
His clinical measurements met all requirements for the procedure, including a normal corneal endothelial cell density (2,500–3,000 cells/mm²), pupil size within the acceptable range (2–4 mm), stable refractive error for at least six months, and no history of ocular diseases such as glaucoma or corneal scarring.
A surgeon implants an intraocular lens to correct Mr. Nhat’s refractive error. Photo: Tam Anh General Hospital
Phakic ICL is a procedure in which an implantable collamer lens is inserted through a small corneal incision measuring only 2.2–2.8 mm at the corneal limbus. Using a specialized injector, the surgeon gently places the ultra-thin lens behind the iris and in front of the natural crystalline lens. The lens is custom-designed according to Mr. Nhat’s specific degree of myopia and astigmatism to achieve optimal refractive correction.
According to Dr. Phuc, this procedure can correct up to 18.00 D of myopia, 10.00 D of hyperopia, and 6.00 D of astigmatism, making it suitable for patients between 21 and 45 years of age. The technique is minimally invasive, preserves the corneal structure, and is particularly suitable for individuals with thin corneas. It also reduces postoperative discomfort and allows for rapid visual recovery. However, because each lens is individually customized and imported from Europe, the preparation period is typically longer than with other refractive procedures.
At his one-week follow-up visit, Mr. Nhat achieved 20/20 vision in both eyes and no longer depended on prescription glasses.
Dr. Phuc advised that after undergoing Phakic ICL surgery, patients should avoid rubbing their eyes, wear protective eyewear when outdoors, limit strenuous physical activities during the first month, and strictly adhere to the postoperative follow-up schedule. If unusual symptoms such as floaters or flashes of light occur, patients should seek immediate ophthalmic evaluation.
Today, adults over the age of 18 with stable refractive errors and no other significant ocular diseases may be candidates for refractive surgery procedures such as LASIK, SMILE, or Phakic ICL. Depending on each patient’s ocular condition, the ophthalmologist will recommend the most appropriate treatment option.
Source: https://vnexpress.net/xoa-can-cho-nguoi-mac-da-tat-khuc-xa-5085196.html
03/10/2026
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