To analyze the normal adult corneal thickness, we used the Orbscan(Orbtek, Inc.)to measure 50 volunteer subjects. The reproducibility of the pachymetry, the daytime variation of corneal thickness and the consistency of thickness across days were analyzed. All 50 subjects were measured, taken each at 8:00, 9:30, 11:00, 13:00, 14:30, and 16:00. The corneal thickness was taken at the center and 1.0 mm, 1.5 mm, 2.0 mm, 2.5 mm, 3.0 mm and 3.5 mm away from the center. Also measurements were made 3 consecutive days at the center, 2.0 mm and 3.5 mm away from the center. Repeatability of corneal thickness was highly reliable(Guttman split-half point:0.9972 and 0.9961, respectively). The average distance difference was 10 micrometer at the center and 23 micrometer at 3.5 mm away from the center. The corneal thickness did show a diurnal pattern during the day but was stable when measured across days. No significant difference when measuring on the same hour on another day was shown the corneal thickness to be consistent.
Adult ; Humans ; Keratomileusis, Laser In Situ ; Volunteers

Lower lid retraction can be caused by many etiologies but few require surgical intervention except for cosmetic reasons and exposure deratitis due to lagophthalmos. We report three lower lid retraction patients who underwent lower lid reconstruction was due to congenital etiology or was secondary to excessive inferior rectus muscle recession or lower lid blepharoplasty due to orbital neurofibroma. All three patients found their results satisfactory and showed no severe side effects during the follow-up period. It is suggested that the use of scleral spacer combined with lateral canthoplasty be an effective surgical procedure for correction of lower lid retraction.
Blepharoplasty ; Follow-Up Studies ; Humans ; Neurofibroma ; Orbit

When inserting an orbital implant, evisceration allows suitable movement of the eyeball making it a better method cosmetically than enucleation; performing hydroxyapatite implantation after evisceration preserving the cornea sometimes causes the complication of cornea melting. To reduce complications after evisceration and hydroxyapatite implantation,scleral patch graft with corneal excision was performed in 15 eyes of 15 patients. In all 15 eyes, 20 mm-sized hydroxyapatite implants were inserted. Fourteen eyesshowed no complications, but in one eye scleral suture was exposed and 2months later the implant was exposed around that area. Also, there developed conjunctival wound dehiscence and exposure of the central portion of the scleral graft in two eyes. But the exposed sclera was fibrovascularized by the surrounding conjunctival tissue and did not lead to exposure of the implant. This study suggests that when performing evisceration and hydroxyapatite implantation, scleral pach graft with cornea excision is helpful in reducing the incidence of exposure of hydroxyapatite implant.
Cornea ; Durapatite ; Freezing ; Humans ; Incidence ; Orbital Implants ; Sclera ; Sutures ; Transplants* ; Wounds and Injuries

No abstract available.
Abscess* ; Magnetic Resonance Imaging*

No abstract available.
Tretinoin*

No abstract available.
Forearm*

No abstract available.
Lasers, Gas*

Various surgical methods have been used to reconstruct severe soft tissue defects of the finger with exposed critical structures such as tendon, bone, and nerve. Some of these methods include rotation flap, cross finger flap, or regional flap similar to neurovascular island flap. However, there were often difficult situations where a flap could not be applied depending on the remaining surrounding tissue, injured area, and size of defect. As a result, free flap or distant flap may become necessary. However, distant flaps often cause stiffness of the finger joints since the hands need to be immobilized for a long time, while standard free flaps may be too thick to cover the finger and cause problems such as morbidities of the donor site. Since May, 1997, at Anam Hospital, we have performed reconstruction on 6 patients with soft tissue defect using a thin, flexible medial plantar septo-cutaneous free flap similar to the volar aspect of the finger in anatomical characteristics of the skin and subcutaneous tissue covering. The vessels used for this flap were superficial branches of medial division of the medial plantar artery and vena comitantes, or the subcutaneous veins. The mean size of the flaps was 2.75cm x 4.25cm. Primary repair or split-thickness skin graft was performed on the donor site depending on the size. All the flaps survived without significant complications, except one case of venous insufficiency. The composition of the transferred flaps was good with the recovery of pain, touch and temperature sensation. A free medial plantar septo-cutaneous flap has several advantages, e.g., it is small in comparison with other standard free flaps, having two draining venous pathways, good color and texture, and a good recovery of protective sensation. This flap can be used for the reconstruction of soft tissue defect on the heel and foot, as well as the volar aspect of fingers.
Arteries ; Finger Joint ; Fingers ; Foot ; Free Tissue Flaps* ; Hand ; Heel ; Humans ; Sensation ; Skin ; Subcutaneous Tissue ; Tendons ; Tissue Donors ; Transplants ; Veins ; Venous Insufficiency

Scalp extension involves the continuous nonvolumetric expansion of the hair-bearing scalp, via biologic creep, using implanted surgical device consists of cutting a 5 cm wide strip of plain silastic (0.02 inch thick) from a larger 16x8 inch sheet, then gluing dacron-reinforced silastic strip (5x1 cm, 0.015 inch thich) to the distal ends. A stainless steel plate from hooks is then secured to each end of the extender. During the period from March 1996 to September 1997, 21 patients including 16 patients of male pattern baldness were treated for alopecia of the scalp using internal scalp extender in the department of plastic surgery Korea university hospital. All cases were successfully reconstructed without major complications. It not only reduces the number of scalp reductions and time necessary to totally excise bald vertex scalp, but also appears to decrease the amounts of stretch back and atrophic scarring that may accompany some reductions. Scalp extension appears to be a useful adjunctive technique in hair replacement and reconstructive surgery, and has distinct advantages over standard scalp reduction and tissue expansion techniques.
Alopecia* ; Cicatrix ; Hair* ; Humans ; Korea ; Male* ; Scalp* ; Stainless Steel ; Surgery, Plastic ; Tissue Expansion

No abstract available.
Dacryocystorhinostomy*