Analysis of central corneal thickness in different degrees of diabetic retinopathy / 国际眼科杂志(Guoji Yanke Zazhi)

AIM: To study central corneal thickness ( CCT ) and correlation in different degrees of diabetic retinopathy ( DR) . METHODS:A total of 65 cases (130 eyes) with different degrees of DR and 35 normal cases (70 eyes) as the age-and gender-matched control group were examined by corneal endothelial microscope, to measure CCT and statistics RESULTS: Compared to control group, there were no significant difference of CCT both mild and medium nonproliferative diabetic retinopathy ( NPDR) groups ( P>0. 05 ). While the CCT of severe NPDR group and proliferative diabetic retinopathy ( PDR ) group were thicker than control group, and the differences were statistically significant (P CONCLUSION: The CCT increases with severity of DR. Taking care of protecting corneal endothelium is very important in the time of therapeutic measure, especially intraocular operation, to decrease complication.

Corneal Melting and Descemetocele Resulting From Noninfectious Keratitis Related to the Cosmetic Contact Lenses

PURPOSE:To report 2 cases of corneal melting and corneal melting with descemetocele that occurred in users of cosmetic contact lenses. CASE SUMMARY: A-12-year-old and a 13-year-old female who used cosmetic contact lenses were referred to our clinic under the preliminary diagnosis of keratitis and corneal melting. The patients had purchased the lenses from an optician and had worn the lenses for approximately 1 month without being educated on their proper use. The signs and symptoms improved after 2 weeks of treatment with oral steroid and 1% topical prednisolone acetate. However, descemetocele occurred in the 12-year-old patient. Reepithelization of the cornea had been completed within the treatment period. However, corneal thinning with mild opacity remained in the lesions, and the best corrected visual acuities on the Snellen chart were 20/30 in both patients.

Corneal Complications in Contact Lens Wearer

With the widespread introduction of contact lenses as a convenient alternative to spectacles, corneal complications in contact lens wearers has also increased. We undertook this study to assess the risk of contact lens use, and other major causes of corneal complications. We have experienced 95 contact lens wearer(133 eyes) with corneal complications at the Chung Ang University Hospital from Jan. 1991 to May 1994. Among the corneal complications, abrasion and erosion occupied the most part of them(57.9%). Other complications were punctate keratitis(36.8%) and ulceration(5.3%). The causes of corneal lesion were extended wearing, foreign body or scratching of lens, poor fitting, sleeping with contact lens wear, and unknown. In order to decrease the corneal complications in contact lens wearers, phthalmologists should warn their patients using or considering contact lenses of this potential problems and stress the necessity of meticulous hygiene and prompt evaluation of an uncomfortable eye.

Corneal Complications of Contact Lens Wearer

We have experienced the corneal complications of contact lens wearer in 102 eyes from March 1986 to Nov. 1988. Among the corneal complications, the corneal erosion and abrasion occupied the most part of them(65.7%). Punctate keratitis and corneal ulcer were noted in 22 eyes(21.5%) and 12 eyes (11.8%), respectively. The causes of corneal lesion were foreign body or scratching of contact lens(17.6%), sleeping while wearing contact lens(23.1%), poor fitting(l3.8%), extended wearing(30.4%) and unknown(17.6%). It was interesting that 45.3% of the corneal lesions occurred on Saturday and Sunday. This is probably due to extended wearing or sleeping while wearing contact lens on the weekend.

Corneal Complications of Contact Lens Wearer

We have experienced the corneal complications of contact lens wearer in 102 eyes from March 1986 to Nov. 1988. Among the corneal complications, the corneal erosion and abrasion occupied the most part of them(65.7%). Punctate keratitis and corneal ulcer were noted in 22 eyes(21.5%) and 12 eyes (11.8%), respectively. The causes of corneal lesion were foreign body or scratching of contact lens(17.6%), sleeping while wearing contact lens(23.1%), poor fitting(l3.8%), extended wearing(30.4%) and unknown(17.6%). It was interesting that 45.3% of the corneal lesions occurred on Saturday and Sunday. This is probably due to extended wearing or sleeping while wearing contact lens on the weekend.