|Year : 1983 | Volume
| Issue : 7 | Page : 1068-1070
Relationship between pterygium and lacrimation-a clinical study
DJ Pandey, VK Mishra, Rekha, DN Pandey
Department of Ophthalmology, S.N. Medical College, Agra, India
D J Pandey
Deptt. of Ophthalmology, S.N. Medical College, Agra
|How to cite this article:|
Pandey D J, Mishra V K, R, Pandey D N. Relationship between pterygium and lacrimation-a clinical study. Indian J Ophthalmol 1983;31:1068-70
|How to cite this URL:|
Pandey D J, Mishra V K, R, Pandey D N. Relationship between pterygium and lacrimation-a clinical study. Indian J Ophthalmol [serial online] 1983 [cited 2013 May 20];31:1068-70. Available from: http://www.ijo.in/text.asp?1983/31/7/1068/29749
Present study has been conducted to investigate the co-relation between pterygia and lacrimation in Agra and its suburban people and to assess the importance of tears in the etiology of pterygia.
Agra is situated on the border of Rajasthan as such it is hot and dry for almost 9 months of the year dud to its vicinity to desert climate. Usually, the temperature during peak hours of the day varies between 35° C to 40° C with the exceptions of May and June when it touches 40°C to 48° C and November to January keeping below 35° C. Humidity is least and dry winds are common feature most of the times of those nine months.
| Material and methods|| |
Present study has been done in the Department of Ophthalmology. S.N. Medical College, Agra on 1400 eyes of 1200 patients suffering from different grades of pterygia. 200 eyes of 100 normal patients and the eyes which were uneffected by pterygia were taken as control in either sex and of all age groups.
Patients and controls were picked up amongst the patients visiting the out patients Department of Ophthalmology and those referred from remote Rural areas by mobile Eye Unit of the Deptt. duing December 1980 to June, 1982.
In patients with unilateral pterygium the second eye was taken as a control. Irrespective of the age, 50 males and 50 females with both normal eyes were also taken as controls.
The Schirmer's test was used to determine the quantitiative tear formation. Mean average was taken. In males 12mm. or more weting of 5X30mm. strip of No. 41. whatman Filter paper after five minutes was considered as normal. In females 14 mm. of the above wetting was taken as normal.
| Observations and discussions|| |
The present study was carried out on 1400 eyes of 1200 patients. 804 patients were from various rural areas. 392 patients were from the OPD of S.N. Medical College & Hospital, Agra.
Males are pre-dominant over females as males comprise 924 (77%) and females 276 (33%) only.
The minimum age as recorded impresent studies is below 20 years in only two cases. While maximum age group effected in males and females both were is between 46-60 years and more than 60 years. This suggests that the process is progressive in nature but pterygia seen in younger patients below 14years is only 2 out of 924 male cases which is statistically in significant.
In our present study unilateral pterygia in males is 74.99% in 949 eyes while female effected was 250 out of 1000 eyes investigated.
Pterygia in both eyes were also common in males than in females i.e. 57.5% over 12.5% of females examined. The Schirmir's test carried out in the present study in control group of unilateral pterygia was 16.4319 mean value while standard deviation in the group was 1.7696 i.e. over 13.5 mm. The females were having higher tendency of mean as well as standard deviation value of schirmirs test was 19.1095 and 3.1975. This indicates that females are having more schirmirs value as compared to males. Which was noticed by earlier workers. The standard and meandeviation of Schirmirs test were recorded in normal male and female groups of control cases.
The results observed were again in favour of lesser secretion in males as compared to females. i.e. 14.30 over 16.70.
The Schirmers test carried out in same manner in effect eyes (unilateral & Bilateral) of either sex was less than 11 mm. with mean value 9.2276, 9.9940, 8.0714,1800 and standard daviation was 1.7633,1.3162,1.9167 and 2.2400 respectively.
The `t' and `p' values were recorded in males Vs. Males unilateral, female Vs. female bilateral, male Vs. male bi-lateral, female Vs. female uni-lateral i.e. 80.1388, 41.9876, 20.7067 and 23.7448 with standard `p' value less than 0.001. These values where also recorded in males of unilarteral Vs. bi-lateral male, in unilateral female Vs, female in bilateral and the values were 10.4068, 4.3857, The 't' values 6.9672 and4.0983, recorded in male Vs. female (unilateral) and male Vs. female in bilateral recpectively.
These values provide clear indication that quantitative tear estimation by conventional Schirmer's test method was lessor in effected eyes with Pterygia in either sex than the normal control group where `t' values have a statistical significance.
| Summary|| |
The conventional Schirmer's test was conducted on 1400 eyes with pterygia of different age andsex group in the present study and it was found that the tear formation was less in the patients with pterygia.
[Table - 1], [Table - 2], [Table - 3], [Table - 4]